Ethylene glycol

Open Access Article

1 - Partitioning Studies of Alpha-amylase in Aqueous Two Phase System Composing of Polyethylene Glycol and Tri-Sodium Citrate
مریم Karimi N. Hadidi Gh. Pazuki Sh. Abdolrahimi

Introduction: One of the scenario for separation of biotechnology products is the application of aqueous two-phase systems (ATPS) rather than traditional extraction by using solvent. The ATPSs are applicable method for separation and purification of biomolecules mixture More

Introduction: One of the scenario for separation of biotechnology products is the application of aqueous two-phase systems (ATPS) rather than traditional extraction by using solvent. The ATPSs are applicable method for separation and purification of biomolecules mixture. The ATPS can be applied for protein purification of biomolecules from suspension broth. The goal of the present research is the study of partitioning of -amylase in polymer-salt aqueous two-phase system composed of polyethylene glycol with molecular weight of 1000 and tri-sodium citrate salt as a biocompatible salt. Materials and Methods: The aim of this research is to study partitioning of α-amylase enzyme in an aqueous two phase system. The system consists of polyethylene glycol (PEG) with molecular weight of 1000 and tri-sodium citrate that is a biocompatible salt. Results: The results for partitioning of enzyme in ATPS has been modeled and statistically analyzed; and indicated that the partition coefficient of -amylase in the system has the maximum amount of 2.681. Conclusion: In this research it has been proved that ATPS components concentration has an effect on the enzyme partition coefficient. Using experimental results, -amylase has a great tendency to be placed in the PEG rich phase. Manuscript profile

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2 - The investigation of Allelopathic potential of 70 wheat (Triticum aestivum) cultivars on germination and seedling growth of volunteer canola (Brassica napus)
Narges Mohamadi Elias Soltani Mostafa Oveisi Hossein Ramshini

Allelopathic effects of plant can be one of the best ways to reduce the applying of herbicides which are high costly to register and have environmental effects. Therefore, the aim of this study was to investigate the allelopathic effects of wheat cultivars and to identi More

Allelopathic effects of plant can be one of the best ways to reduce the applying of herbicides which are high costly to register and have environmental effects. Therefore, the aim of this study was to investigate the allelopathic effects of wheat cultivars and to identify the ability of them to control weeds. a field and laboratory experiment was conducted in Research Farm and Seed Technology laboratory of Aburaihan Campus, University of Tehran, during 2015-16. Seeds of 70 wheat cultivars were sown at 600 square meters of Research Farm and samples were taken for bioassay at the tillering stage. To separate the impact of allelopathic extract and osmotic potential of the extracts, different solutions were made with the same osmotic potential for each extract. Then, experiments simultaneously were conducted to investigate the effects of extract and osmotic potential on germination of canola. The results of separations of allelopathic and osmotic potential effects of extractions showed that the inhibition of canola germination is related to allelopathic effects and not osmotic potential of extraction (PEG). Results indicated that allelopathic effects of wheat cultivars had slightly increased during the releasing period of cultivars from 1940 until now, but this increase was not significant. This shows that breeders had not attention to allelopathy of wheat cultivars during breeding programs. Results indicated that there were some cultivars with high allelopathy and it is possible to include them in breeding programs to produce cultivars with high potential of weeds control. Manuscript profile

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3 - Germination modeling of Eryngium caeruleum seeds with hydro thermal time model
Mohammad Lotfi asle giglo Mostafa Oveisi Hamid Rahimian- mashhadi Behnaz Pourmorad kaleibar Mohammad Hossein Naeimi

This study was conducted to evaluate the effect of temperature and moisture on germination of Eryngium caeruleum seeds as factorial experiment in a completely randomized design with three replications at weed science laboratory, college of agriculture and natural resour More

This study was conducted to evaluate the effect of temperature and moisture on germination of Eryngium caeruleum seeds as factorial experiment in a completely randomized design with three replications at weed science laboratory, college of agriculture and natural resources, university of Tehran. Factors were seven temperatures (5, 10, 15, 20, 25, 30 and 35°c) and seven levels of moisture (0, -2, -4, -6, -8, -10 and -12 bar) and hydro thermal time model used for description of Eryngium caeruleum germination. Germination parameters including base temperature (Tb), optimum temperature (To), the minimum moisture needed for start of germination (Wpb), decreasing coefficient (b) and standard deviation (Sigma) were obtained 2.39, 23.52, -0.93, 0.13 and 0.34 respectively, affected by different levels of temperature and moisture by using hydro thermal time model. The results also showed that germination percentage and rate increased up to -4 bar in base temperature and these germination characteristics reached to their highest level in optimum temperature. According to the results of this study, it can be said that the seeds of Eryngium caeruleum do not have resistance to the water stress at very low and very high temperatures, and have the maximum resistance at 20°c. Manuscript profile

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4 - Application of spectroscopic methods for structural analysis of monoclinic bismuth vanadate nanoparticles (BiVO4) with different morphologies in the degradation of Rhodamine B dye
majid mozaffari omid niazmand

In this Research, BiVO4 nanoparticles using the templates of acrylamide, tryptophan, glycine and polyethylene glycol in same situation of pH and temperature for one pot reaction were prepared. The physicochemical properties of the samples were characterized by diffuse r More

In this Research, BiVO4 nanoparticles using the templates of acrylamide, tryptophan, glycine and polyethylene glycol in same situation of pH and temperature for one pot reaction were prepared. The physicochemical properties of the samples were characterized by diffuse reflectance spectroscopy (DRS), Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction spectrometer (XRD) techniques. According to the appropriate band gap range from a survey of DRS these compounds suitable for degradation organic pollutants under the terms of the visible light. Rhodamine B as one of the great stability of industrial pollution as well as contaminants was selected. All samples payoff in degradation and discoloration of Rhodamine B (Rh B) showed, but BiVO4 prepared by PEG in about 300 minutes، pH 7 and a concentration of 0.2 grams per liter of photocatalytic, the best performance was in the degradation and decolorization. In the process of photocatalytic degradation of Rhodamine B (Rh B) bismuth vanadate best performance was prepared by polyethylene glycol as a bridging agent, Due to the specific structure and a high level of photocatalytic ability is capable of more than the other compounds. Manuscript profile

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5 - The Effect of Paclitaxel Polyethylene Glycol Solution on Hela Cells
Maryam Afshar Mahrouz Dezfulian

Inroduction & ObjectivePaclitaxel (PTX) is one of the most effective chemotherapeutic agents for a wide spectrum of cancers, but its therapeutic benefit is often limited by its poor solubility in aqueous solutions and Cremophor El severe side effects. However, the aim o More

Inroduction & ObjectivePaclitaxel (PTX) is one of the most effective chemotherapeutic agents for a wide spectrum of cancers, but its therapeutic benefit is often limited by its poor solubility in aqueous solutions and Cremophor El severe side effects. However, the aim of this study is to develop highly water-soluble paclitaxel. For this purpose we prepared a new paclitaxel–poly (ethylene glycol) (PEG) conjugates that were characterized and evaluated for their in vitro cytotoxicity.Materials and Methods:The cell lines used were HeLa and L. Both cell lines were maintained in RPMI 1640 medium containing 10% fetal bowin serum and 1% antibiotics. Various dilutions of PTX-PEG conjugate by physical method were prepared and in vitro cytotoxicity and drug uptake were determined by MTT assay on HeLa and Lcells. Data were expressed as the means of three separate experiments, and were compared by analysis of variance (ANOVA) and Tukey's multiple comparison test of SPSS software.ResultsQuite homogeneous solution was obtained and paclitaxel was completely dissolved. Using MTT assay was determined that a lower dose of paclitaxel nanoparticle have a greater efficacy on cancer cells compared with PTX/ Cremophor EL. (* = P-valueConclusion: The new conjugate formulation exhibited a high efficiency of antitumor activity and low toxicity and can be used as a drug delivery vehicle for cancer therapy. Manuscript profile

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6 - THE EFFECT OF HYDROPHILIC EXTRACT OF MUSA SAPIENTUM ON ETHYLENE‌ GLYCOLl-INDUCED RENA STONE IN MALE WISTAR RATS
samira babai norozi Parastoo Rahimi mehdi rahnema

Inroduction & Objective:Prevention of kidney stone formation is one of the important issues in preventing kidney disease. Banana’s peel has antioxidant, anti-inflammatory and tissue repairing properties, and due to its alkaline properties, it increases citrate More

Inroduction & Objective:Prevention of kidney stone formation is one of the important issues in preventing kidney disease. Banana’s peel has antioxidant, anti-inflammatory and tissue repairing properties, and due to its alkaline properties, it increases citrate and decreases urinary calcium, urea and blood creatinine.Material and Method:In this study, 32 males of Wistar divided into 6 groups. Healthy control used only food and water, negative control group rats, used food, water, and 1% ethylene glycol solution. The control group 1, used food, water and solution of banana’s peel at concentrations of 100 mg / kg and 150 mg / kg orally. Experimental  1  used  food , water, and 100 kg concentration of banana's  skin extract solution  with 1% ethylene glycol .Experimental  2 rats, used  food , water,  solution of banana's peel extract at concentration of 150 mg / kg with 1% ethylene glycol solution. At the end   24 urine, blood kidneys of samples were collected. Kidney tissue was histological examined with hematoxylin-eosin for accumulation of calcium oxalate.Results: Significant differences were observed in creatinine and blood uric acid in the negative control group   compared to experimental 2.The highest urea levels in the blood were observed in the negative control Negative control had significant difference with experimental 1. Urea and urinary citrate in the negative control had significant difference compared to all groups. Urinary oxalate in the negative control  a statistically significant difference was observed compared to  healthy control .Also, the amount of crystals in  total renal tissue between experimental groups 1 and experimental group 2 with negative control group and other groups significant statistical differences were observed (P <0.05). Renal histological examinations showed improvement of renal tissue .Conclusion: The results show the effectiveness of banana peel extract on preventing kidney stones and improving tissue complications due to ethylene glycol consumption by inhibiting the formation of calcium oxalate due to its antioxidant and anti-inflammatory properties. Manuscript profile

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7 - The Effect of Hydroalcoholic Extract of banana’s peel (Musa spaientum) on Rena Stone induced by Ethylene Glycol in Female Wistar rats
Parastoo Rahimi Nastaran Ghassempoor

Background and aim: Banana peel has antioxidant, anti-inflammatory, healing and tissue repair properties, and due to its alkaline properties, it increases citrate and decreases urinary calcium, urea, and blood creatinine. Material and Methods: In this study, the effect More

Background and aim: Banana peel has antioxidant, anti-inflammatory, healing and tissue repair properties, and due to its alkaline properties, it increases citrate and decreases urinary calcium, urea, and blood creatinine. Material and Methods: In this study, the effect of hydroalcoholic extract of banana peel on kidney stone disease induced by ethylene glycol was tested in 42 female Wistar rats in 6 groups in 31 days. Healthy control used only food and water, negative control group rats, used food, water, and 1% ethylene glycol solution. The control group 1, used food, water and solution of banana’s peel at concentrations of 100 mg / kg and 150 mg / kg orally. Experimental 1 used food, water, and 100 kg concentration of banana's skin extract solution with 1% ethylene glycol .Experimental 2 rats, used food , water, solution of banana's peel extract at concentration of 150 mg / kg with 1% ethylene glycol solution.. At the end of, blood of samples were collected for biochemical analysis.Results: The results showed that creatinine, uric acid, and urea increased in the blood of the negative control group, and for creatinine and urea the difference between negative control and healthy control and experimental control 2 was significant. In the uric acid factor, despite the increase in the negative control, the differences are not significant (P<0.05).Conclusion: The results show the effectiveness of banana peel extract on kidney stones caused by ethylene glycol by inhibiting calcium oxalate formation pathways due to its antioxidant, anti-inflammatory and antibacterial properties. Manuscript profile

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8 - Polyethylene glycol embedded tribromide as an efficient and reusable catalyst for the library synthesis of nitrogen containing heterocycles
Sanny Verma

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9 - The effect of polymer molar mass on the aqueous two-phase system containing Poly ethylene glycol dimethyl ether and ammonium sulphate and its application of this system in partitioning of iodine
Mohammed Taghi Zafarani–Moattar Hemayat Shekaari Tohid Hashemzadeh

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10 - Liquid–liquid equilibria of aqueous two phase system containing of PEGDME and (NH4)2 SO4 at different temperatures and its application in partitioning of lactic acid
Mohammed Taghi Zafarani Moattar Hemayat Shekaari Tohid Hashemzadeh

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11 - Multivariate Analysis of Variance (MANOVA) and Multivariate Regression in Determining Thermal Conductivity of Nanofluid for Use in Mechanical Systems
Mohammad Reza Ghalani Moslem Barzegari Ashkan Ghafouri

Statistical methods are used in the analysis of all types of data. In this paper, using multivariate analysis of variance and multivariate regression, the data related to the thermal conductivity of nanofluids have been analyzed and the results of the two methods have b More

Statistical methods are used in the analysis of all types of data. In this paper, using multivariate analysis of variance and multivariate regression, the data related to the thermal conductivity of nanofluids have been analyzed and the results of the two methods have been compared. A two-step method was used to prepare ethylene glycol-magnesium oxide nanofluid. In order to prepare the nanofluid by suspending the nanoparticles in the base fluid, an ultrasonic homogenizer was used. For this purpose, nanoparticles with diameters of 20, 50, and 100 nm in volume fractions of 0.25, 0.5, 0.75, 1, and 1.25% have been used at temperatures of 25, 30, 35, 40, 45, and 50 degrees Celsius. Transient hot wire method was used to measure thermal conductivity in different volume fractions. Then the obtained experimental values were analyzed using SPSS.26 software. The coefficient of determination and the graphs of the errors obtained in the two methods showed that when the independent variables are defined as grouped, the use of multivariate analysis of variance can better describe the dispersion of the thermal conductivity. Manuscript profile

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12 - Effect of Osmotic Stress on Seed Germination Indices of Nigella sativa and Silybum marianum
حمیدرضا Balouchi A. Yadavi M. Movahedi Dehnavi

Evaluation of medicinal plants to drought and salt stress tolerance, in an attempt to plant them under drought and saline regions, is of utmost importance. Environmental stresses, especially drought and salt, reduce the global crop yields more than other factors. Select More

Evaluation of medicinal plants to drought and salt stress tolerance, in an attempt to plant them under drought and saline regions, is of utmost importance. Environmental stresses, especially drought and salt, reduce the global crop yields more than other factors. Selection of drought tolerant crops at germination stage, usually is, the fast and low cost method. In order to study the effect of osmotic stress on germination indices of black cumin and milk thistle, an experiment carried out in a completely randomized design with four replications at the Seed Technology Laboratoary of Yasouj University in 2008. Treatments were 0 (as control), -2.4, -4.8, -7.2 and -9.4 bar osmotic potentials created by using PEG 6000. Results showed that, decreasing of osmotic potential reduced speed of germination and its percentage, root and shoot lengths and dry matter in these two plants. Black cumin showed higher tolerance, to -4.8 bar osmotic potential, as compared to milk thistle. However, milk thistle showed higher tolerance to drought stress, up to this osmotic potential (-4.8 bar), compared to black cumin. Milk thistle had lower germination speed and percentage at higher drought stress as compared to black cumin. Generally, milk thistle showed better growth and survival than black cumin due to its higher root and shoot length and dry matter. Manuscript profile

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13 - Effects of Apium graveolens extract on serum calcium and oxalate in ethylene glycol- induced kidney injury in male Wistar rats
Parisa Mehrparvar Akram Eidi Pejman Mortazavi Shahrbanoo Oryan

Celery (Apium graveolens) is a biennial plant, belonging to family Apiaceae. Various parts of celeryare used in hepatic and spleen disorders, brain disorders, body pain, and sleep disturbances. The present study was planned to investigate the effect of celery ethanolic More

Celery (Apium graveolens) is a biennial plant, belonging to family Apiaceae. Various parts of celeryare used in hepatic and spleen disorders, brain disorders, body pain, and sleep disturbances. The present study was planned to investigate the effect of celery ethanolic extract on ethylene glycol induced kidney injury in male Wistar rats. Urolithiasis was induced in hyperoxaluric rat model by giving 0.75% ethylene glycol for 28 days. Animals were divided into 8 groups (n=6) including normal control, urolithiatic control (0.75% ethylene glycol in their drinking water), normal rats receiving celery extract at doses of 50, 100 and 200 mg/kg and urolithiatic rats receiving celery extract at doses of 50, 100 and 200 mg/kg intragastrically. At the end of the experiment (28 days), blood samples were collected by cardiac puncture and serum calcium and oxalate was analyzed. Statistical analysis was performed by one-way analysis of variance followed by Tukey post hoc test (p<0.05). Significant elevation of serum oxalate and reduction of serum calcium was observed in urolithiatic control rats compared with the normal control rats. Administration of celery extract at a dose of 200 mg/kg produced significant elevation in serum calcium and reduction in serum oxalate in urolithiatic rats. Thus, celery extract could ameliorate urolithiasis induced by ethylene glycol. Manuscript profile

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14 - Polyethylene Glycol Coated NiFe2O4 Nanoparticles Produced by Solution Plasma Method for Biomedical Applications
Masoud Shabani Ehsan Saebnoori Ali Hassanzadeh-Tabrizi Hamid Reza Bakhsheshi-Rad

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15 - Palladium-Cobalt on Reduced Graphene Oxide as an Electro-catalyst for Ethylene Glycol Oxidation in Alkaline Medium: Synthesis and Electrochemical Performance
Hamid Asgari Somayeh Majidi

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16 - Effect of premixing of spermidine and polyethylene glycol on germination and physiological and morphological activity in Triticum durum wheat with Salinity stress
Parvane Rahdari

In order to effect of spermidine and polyethylene glycol pretreatment on germination and some physiological and morphological activity durum wheat under salinity stress a  experiment with 20 treatments, three replications was conducted in 60 experimental units. Tre More

In order to effect of spermidine and polyethylene glycol pretreatment on germination and some physiological and morphological activity durum wheat under salinity stress a  experiment with 20 treatments, three replications was conducted in 60 experimental units. Treatments included five levels of spermidine (0/ 02,0/ 05,0/ 1 and 0/15 mM) and four levels of polyethylene glycol (0- 2,- 4 and -5 bar). The results showed that the use of spermidine increased the relative weight contact of leaf (RWC), leaf area ratio, chlorophyll s and phenolic compounds . In this study, carotenoids content and leaf antioxidant activity decreased with increasing spermidine level and also had no statistically significant effect on germination. With increase of polyetylen glycol antioxidant activity, carbohydrates and  total phenolics increased  but decreased germination. Therefore, according to the above results, application of spermidine and polyethylene glycol as seed pre-treatments can have significant effects on physiological and morphological activities in stress conditions and increase plant potency under stress conditions.    Manuscript profile

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17 - Evaluation of drought tolerance in sesame (Sesamum indicum L.) genotypes using germination traits and indices under drought conditions
Mohammad Amin Baghery Seyed Kamal Kazemitabar Ali Dehestani Pooyan Mehrabanjoubani Hamid Najafi Zarini

10.30495/iper.2022.688792

Sesame as one of the most important oilseed crops has high industrial, food, and medicinal potentials. Drought stress challenges sesame production, especially at the germination and seedling stages. To screen sesame genotypes for drought tolerance at the germination sta More

Sesame as one of the most important oilseed crops has high industrial, food, and medicinal potentials. Drought stress challenges sesame production, especially at the germination and seedling stages. To screen sesame genotypes for drought tolerance at the germination stage, a factorial experiment was performed in a completely randomized design with 3 replications. The studied factors included 4 drought levels induced by polyethylene glycol (concentrations of 0%, 20%, 25%, and 30%) and 15 sesame genotypes. Based on the results of ANOVA, the effect of genotype, drought, and their interaction on all studied traits including germination rate, germination speed, vigor index 1 and 2, radicle length, plumule length, and seedling fresh and dry weight was significant (P<0.01). Significant reduction (P<0.05) was observed in all levels of stress compared to the control in the studied traits. Germination rate, radicle length, and plumule length (with 10%, 17%, and 18% reduction, respectively) showed less sensitivity to drought stress at weak level (20% concentration), while the most negative effect was obtained for vigor index 2, seedling dry weight and seedling fresh weight (with 52.5%, 47.3%, and 34.4% reduction, respectively). On the other hand, the highest decrease was observed in plumule length, vigor index 1 and 2 (98%, 97%, and 96%, respectively), under severe drought (30% concentration). The calculated drought tolerance indices of each trait were used for principal component analysis and biplot visualization. Thus, genotypes were divided into 5 categories based on tolerance. Dashtestan 2 and Darab 1 genotypes were selected as the most tolerant and Qaem, Yekta, Sudan, and Kerman genotypes were selected as the most sensitive genotypes. The findings of this study can be used in future studies and breeding programs of sesame for drought tolerance. Manuscript profile

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18 - Preparation and Characterization of Curcumin-Silver Nanoparticle and Evaluation of the Effect of Poly Ethylene Glycol and Temperature
Parisa Adibzadeh Negar Motakef-Kazemi

10.22034/jna.2018.559423.1067

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19 - Preparation and Characterization of Curcumin-Silver Nanoparticle and Evaluation of the Effect of Poly Ethylene Glycol and Temperature
Parisa Adibzadeh Negar Motakef-Kazemi

10.22034/jna.2018.543607

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20 - One-pot and efficient synthesis of triazolo[1,2-a]indazole-triones catalyzed by poly(ethylene glycol) based magnetic dicationic ionic liquid
Bijan Mombeni Goodajdar Soghra Soleimani

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21 - اثر تانن تفاله انگور و برگ بلوط بر گوارش‌پذیری آزمایشگاهی ماده آلی و تجزیه‌پذیری شکمبه‌ای در گوسفند
M.J. Abarghuei Y. Rouzbehan D. Alipour

اثر تاننهای تفاله انگور و برگ بلوط با استفاده از سه سری آزمون تولید گاز بر گوارشپذیری آزمایشگاهی ماده آلی و تجزیهپذیری شکمبهای ماده خشک و پروتئین خام در گوسفند مورد آزمایش قرار گرفت. پلیاتیلنگلیکول برای خنثی کردن اثرات تانن استفاده گردید. ت More

اثر تاننهای تفاله انگور و برگ بلوط با استفاده از سه سری آزمون تولید گاز بر گوارشپذیری آزمایشگاهی ماده آلی و تجزیهپذیری شکمبهای ماده خشک و پروتئین خام در گوسفند مورد آزمایش قرار گرفت. پلیاتیلنگلیکول برای خنثی کردن اثرات تانن استفاده گردید. تولید گاز در زمانهای 2، 4، 6، 8، 12، 24، 48، 72، 96 و 120 ساعت انکوباسیون ثبت گردید. ترکیب شیمیایی (گرم در کیلوگرم ماده خشک) تفاله انگور و برگ بلوط تعیین گردید و مقادیر ماده آلی 940 و 940، پروتئین خام 94 و 116، دیواره سلولی 568 و 515، دیواره سلولی بدون همیسلولز 467 و 316، لیگنین 242 و 93، کل ترکیبات فنولیک 5/70 و 82، تانن کل 7/49 و 73، تانن متراکم 79 و 4/5، تانن قابل هیدرولیز 40 و 70 بود. استفاده تفاله انگور و برگ بلوط مقدار گوارشپذیری آزمایشگاهی ماده آلی، اسیدهای چرب فرار کوتاه زنجیره، بخش غیر قابل حل ولی قابل تخمیر و سرعت تخمیر را در مقایسه با تیمار شاهد کاهش داد (05/0P<). افزودن پلی‌اتیلنگلیکول مقدار تولید گاز را در کل زمانهای انکوباسیون افزایش داد. کنتیک تولید گاز، گوارشپذیری آزمایشگاهی ماده آلی و اسیدهای چرب فرار کوتاه زنجیره با افزودن پلیاتیلنگلیکول افزایش یافتند (05/0P<). درصد افزایش تولید گاز در تفاله انگور بیشتر از برگ بلوط بود. مقادیر پروتوزوآی کل، جنس ایزوتریجا و داسیتریچا و زیرخانوادههای انتودینینه، دیپلودینینه و افریوسکالسینه با اضافه کردن تفاله انگور و برگ بلوط کاهش یافتند. با افزودن پلیاتیلنگلیکول به تیمار حاوی تفاله انگور، جمعیت پروتوزوآی کل، زیرخانوادههای انتودینینه، دیپلودینینه و افریوسکالسینه را افزایش یافت (05/0P<)، ولی در تیمار حاوی برگ بلوط جنس ایزوتریچا و داسیتریچا و زیرخانواده دیپلودینینه افزایش یافت (05/0P<). مقدار تجزیهپذیری مؤثر ماده خشک و پروتئین خام (گرم در کیلوگرم ماده خشک) یونجه، تفاله انگور و بر بلوط به ترتیب (6/646، 7/357، 3/362) و (821، 3/227، 202) بر اساس روش کیسههای نایلونی برآورد گردید. در کل، استفاده از تفاله انگور و برگ بلوط تولید آمونیاک و جمعیت پروتوزوآ را کاهش داد. جیرههای حاوی تفاله انگور و برگ بلوط در مقایسه با یونجه قابلیت تخمیر کمتری داشتند. افزودن پلیاتیلنگلیکول به جیرههای حاوی تفاله انگور و برگ بلوط قابلیت تخمیر را بهبود بخشید. Manuscript profile

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22 - The Influences of Adding Polyethylene Glycol and Activated Sodium Bentonite on the Performance, Blood Parameters, and Muscle Mineral Content of Saanen Goats Fed Pistachio Byproducts
M. Kordi A.A. Naserian F. Samadian

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23 - بخش بندی پروتئین خام و تولید گاز در سیلاژهای یونجه عمل‌آوری شده با عصاره محصولات فرعی پسته در شرایط آزمایشگاه
ا. مختارپور ع.ع. ناصریان ر. ولی‌زاده م. دانش مسگران ف. پورملایی

به منظور بررسی بخشهای مختلف پروتئین خام و تولید گاز در شرایط آزمایشگاه در سیلاژهای یونجه عمل‌آوری شده با سطوح مختلف عصاره محصولات فرعی پسته و ارزیابی ارزش زیستی تاننهای آن، دو آزمایش انجام شد. محصولات فرعی پسته با نسبت 1:5 (وزن به حجم) به مدت 12 ساعت در آب خیس More

به منظور بررسی بخشهای مختلف پروتئین خام و تولید گاز در شرایط آزمایشگاه در سیلاژهای یونجه عمل‌آوری شده با سطوح مختلف عصاره محصولات فرعی پسته و ارزیابی ارزش زیستی تاننهای آن، دو آزمایش انجام شد. محصولات فرعی پسته با نسبت 1:5 (وزن به حجم) به مدت 12 ساعت در آب خیسانده شدند. پس از صاف کردن و تغلیظ، عصاره خام به علوفه تازه یونجه اضافه شد تا به ترتیب سطوح 1، 2 و 3 درصد ماده خشک یونجه، تانن به دست آید و سپس به مدت 60 روز سیلو شدند. چهار تیمار به این ترتیب بود؛ سیلاژ یونجه بدون عمل‌آوری با عصاره محصولات فرعی پسته، به عنوان شاهد (T0)، اضافه کردن تانن محصولات فرعی پسته در سطح 1 درصد (T1)، 2 درصد (T2) و 3 درصد ماد خشک (T3). عمل‌آوری سیلاژ یونجه، میزان ترکیبات نیتروژنه غیر پروتئینی را کاهش و بخش B2 را در طی سیلو شدن، افزایش داد. تولید گاز تجمعی پس از 96 ساعت انکوباسیون، قابلیت هضم ماده آلی (OMD) و انرژی قابل متابولیسم (ME) در تیمار T2 و T3 در مقایسه با تیمار شاهد کاهش پیدا کرد. میزان تولید گاز و اسیدهای چرب کوتاه زنجیر (SCFA) در سیلاژهای عمل‌آوری شده در حضور پلی اتیلن گلیکول (PEG) افزایش یافت که نشان میدهد وجود ترکیبات فنولی و تاننها باعث کاهش تولید گاز شد. میتوان نتیجه گرفت که عمل‌آوری سیلاژ یونجه با عصاره محصولات فرعی پسته از طریق ممانعت میکروبی، میتواند منجر به کاهش هدرروی نیتروژن در طی سیلو شدن و کاهش تجزیه پذیری ماده آلی شود. Manuscript profile

Open Access Article

24 - Antioxidant capacity and chemical composition of Carum copticum under PEG treatment.
Roya Razavizadeh Mozhdeh Karami

10.30495/ijpp.2018.539108

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Open Access Article

25 - Effects of hydro- and bio-priming on some physiological and biochemical characteristics of quinoa (Chenopodium quinoa) seedlings under drought stress
Saba Dashab Heshmat Omidi

10.30495/ijpp.2021.1919331.1282

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Open Access Article

26 - Study of genetic variation of rice genotypes on the germination components and seedling growth in the drought stress condition
zahra khodarahmpour Elahe Ghorbani Abdolali Gilani

10.2./jpps.2020.703393

The present study was conducted to study genetic diversity in 26 rice genotypes (lRRl heat tolerant collection) in 2016 in Khuzestan Agricultural and Natural Resources Research Center as a factorial experiment based on a completely randomized design with three replicati More

The present study was conducted to study genetic diversity in 26 rice genotypes (lRRl heat tolerant collection) in 2016 in Khuzestan Agricultural and Natural Resources Research Center as a factorial experiment based on a completely randomized design with three replications including 24 lines and 2 hybrids as the first factor and drought stress with PEG 6000 in 5 levels of zero (control), -0.3, -1.8, -3.3 and -4.8 Bar were performed as the second factor. The results of analysis of variance showed that there was a significant difference between drought levels, genotypes and their interaction in all traits at a probability level of one percent. The lowest indices of germination and seedling growth were observed at the level of -4.8 Bar. The highest positive and significant correlation (r = %90**) was obtained between shoot length and seedling length. In principal component analysis, the four first components accounted for 85% of the total diversity. Cluster analysis with Ward method included genotypes in three clusters. In the first cluster of lines 48, 15, 35, 44, 42, 20, 19, 5, 28, 10, 16, 4, 2, 55, 53, 31, 34, 36 and HB2 hybrid, in the second cluster of lines 25 and 23 and hybrid HB1 and in the third cluster were lines 40, 13, 41 and 21. According to the results of mean of comparison, biplot and cluster analysis of the second cluster genotypes in terms of germination rate, shoot length, root length, seedling length, s Manuscript profile

Open Access Article

27 - The Effect of Drought Stress on Germination and Early Growth of Sesamum indicum Seedling’s Varieties under Laboratory Conditions
Mohammad Hossein Bijeh keshavarzi

Environmental stresses specially drought, play an important role in decreasing plant growth, particularly during germination in dry and semi dry area. To considering the effect of drought stress caused by polyethylene glycol on germination and characteristics of 2 spice More

Environmental stresses specially drought, play an important role in decreasing plant growth, particularly during germination in dry and semi dry area. To considering the effect of drought stress caused by polyethylene glycol on germination and characteristics of 2 spices of Sesamum indicum, we had done factorial and complete accidental plot with 4 treatments and 3 times repetition. Experimental treatments included osmotic potential in 4 levels (0, -4, -6, -10 bar) which was produced by polyethylene glycol 6000 and 2 sesame species (Safi Abadi and Dezfol). All data had been analyzed by SAS software and comparison of means had been done by Duncan test at 5% probable level. The results showed that, percentage and speed of all spices’ germination decline by osmotic potential enhancement. Other measured parameters such as radicle and coleoptile length, dry and wet weight declined by increasing osmotic potential as well. Manuscript profile

Open Access Article

28 - Effect of the ionic liquid 1-butyl-3-methyl-imidazolium bromide as adjuvant on the formation of {PEG 600-potassium citrate} aqueous biphasic system at different temperatures
Sholeh Hamzehzadeh Mostafa Abbasi

10.30495/jacr.2021.685754

Abstract: In biotechnology, separation, extraction, and purification of biomolecules using aqueous biphasic systems, as environmental and economic sustainable alternatives for conventional water-organic solvent extraction techniques, have always been the focus of great More

Abstract: In biotechnology, separation, extraction, and purification of biomolecules using aqueous biphasic systems, as environmental and economic sustainable alternatives for conventional water-organic solvent extraction techniques, have always been the focus of great attention and examina-tion. One approach proposed by researchers is based on the use of ionic liquids (ILs) as adjuvants in ABS, making the capability of these systems for the extraction of biomolecules to be promoted. In this regard, this work is devoted to study the effect of IL 1-butyl-3-methyl imidazolium bromide ([C4C1im] Br) on the formation of ABS Composed of a polyethylene glycol (PEG) with molecular weight 600 and a biodegradable organic salt potassium citrate. For this purpose, the binodal curves and the liquid-liquid equilibrium (LLE) data of the studied ABS, along with the partition coeffi-cients of [C4C1im]Br were determined at two temperatures of 278.15 K and 318.15 K. The results obtained indicate that the ability of [C4C1im]Br to promote the formation of the studied ABS de-creases with increasing temperature, so that at 318.15 K, the addition of IL makes the formation of two-phase system more difficult. In addition, [C4C1im]Br displays the partition coefficients greater than one for all the compositions and temperatures studied, which increases with increasing TLL at a given temperature. Manuscript profile

Open Access Article

29 - Responses of Almond Genotypes to Osmotic Stress Induced In Vitro
S. Karimi A. Yadollahi K. Arzani

10.22034/jon.2013.515700

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30 - Physiological and Morphological Responses of Almond Cultivars under In Vitro Drought Stress
Ehsan Akbarpour Ali Imani Shahin Ferdowskhah Yeganeh

10.22034/jon.2017.530393

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31 - Selecting Drought Resistant Sweet Corn Cultivars Based on Germination Percentage and Seedling Proline Content under Osmotic Potentials Stress
Ali Shahriari Adam B Puteh Ghizan B Saleh Anuar B Abdul Rahim

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Open Access Article

32 - The effects of drought stress on seed germination and some of morphological and physiological traits in Trachyspermum ammi
امین باقی زاده Malihe Afroushte Baratali Fakheri

In order to assess the response of ajowan to drought stress that induced by PEG 6000 on germination and growth stages, two separate experiments that in each useed completely randomized design with three replications were done. In first experiment, the response of germin More

In order to assess the response of ajowan to drought stress that induced by PEG 6000 on germination and growth stages, two separate experiments that in each useed completely randomized design with three replications were done. In first experiment, the response of germination of ajowan seeds was investigated to different levels of drought stress include osmotic potential of zero (control), - 1/5, -2, -2/5 and -3bar that prepared by PEG6000. The second experiment was same first, but in this experiment, morphological and physiological characters of ajowan in different level of drought stress were evaluated. Results of Anova at our data showed that drought stress has significant effect (p≤0/01) on germination characters such as germination percentage, germination rate, height of plumule, length of radicle, dry weight of radicle and plumule. Mean comparison of treatments showed, with increase in drought stress, all the above characters have been reduced. Morphological traits such as leaf area, fresh and dry weight of shoot and root and shoot dry weight ratio to root decreased under drought stress. Also, drought stress had a significant effect on the amount of proline and soluble sugars in the aerial part and root. Comparison of mean of treatments showed that, with increasing stress, the amount of proline and soluble sugars in the shoot and root increased (p≤0/01). The results showed, that germination parameters were reduced by drought stress. Ajowan showed differently responce to tolerate drought stress. Ajowan plant for tolerance to drought stress has different reactions, including reduction of traits such as leaf area and dry and fresh weight of aerial part and root and increase traits such as proline content and soluble sugars. Manuscript profile

Open Access Article

33 - The effects of drought stress on seed germination and some of morphological and physiological traits in Trachyspermum ammi
A. Baghizadeh M. Afroushte, B. Fakheri

In order to assess the response of ajowan to drought stress that induced by PEG 6000 on germination and growth stages, two separate experiments that in each useed completely randomized design with three replications were done. In first experiment, the response of germin More

In order to assess the response of ajowan to drought stress that induced by PEG 6000 on germination and growth stages, two separate experiments that in each useed completely randomized design with three replications were done. In first experiment, the response of germination of ajowan seeds was investigated to different levels of drought stress include osmotic potential of zero (control), - 1.5, -2, -2.5 and -3bar that prepared by PEG6000. The second experiment was same first, but in this experiment, morphological and physiological characters of ajowan in different level of drought stress were evaluated. Results of Anova at our data showed that drought stress has significant effect (p≤0/01) on germination characters such as germination percentage, germination rate, height of plumule, length of radicle, dry weight of radicle and plumule. Mean comparison of treatments showed, with increase in drought stress, all the above characters have been reduced. Morphological traits such as leaf area, fresh and dry weight of shoot and root and shoot dry weight ratio to root decreased under drought stress. Manuscript profile

Open Access Article

34 - Effects of Osmotic Potential on Germination and some Characters in cimin (Cuminum Cyminum ) Genotypes
M. kakaei D. Kahrizi M. Mansouri

To control water potential in seed germination studies osmotic solution of polyethylene glycol (PEG) are commonly used environmental stress, such as drought and (Osmotic) stress can play an important role in disturbing different stage of medical plant growth, developmen More

To control water potential in seed germination studies osmotic solution of polyethylene glycol (PEG) are commonly used environmental stress, such as drought and (Osmotic) stress can play an important role in disturbing different stage of medical plant growth, development, and especially seed germination in arid and regions high percent of medicines are used for people have plant origin. With attention to the development of drought area and the shortage of agricultural area, it comes in to great importance to make use of drought tolerant plant an experiment was carried out in order to study the effect of different drought (Osmotic) levels on Cuminum Cyminum in germination in a completely randomized design with three replications. Drought (Osmotic) levels applied were zero (Control), 5%, 10% and 15% (0, -0.03, -0.19 and -0.41 Mpa). The purpose of this study was to determine genotype in PEG solution had a detrimental effect on germination percentage and germination rate. Manuscript profile

Open Access Article

35 - Investigation of mechanical and biological properties of functionalized polycaprolactone and polyethylene glycol diacrylate based scaffold reinforced with hydroxyapatite
نرجس کوپائی Akbar Karkhaneh

The purpose of this study is synthesised of functionalized polycaprolactone and polyethylene glycol diacrylate based scaffold in the presence of hydroxyapatite (HA) particles and investigated of mechanical and biological properties of scaffolds. . At the first step, PCL More

The purpose of this study is synthesised of functionalized polycaprolactone and polyethylene glycol diacrylate based scaffold in the presence of hydroxyapatite (HA) particles and investigated of mechanical and biological properties of scaffolds. . At the first step, PCL diol was acrylated with acryloyl chloride and confirmed using fourier transform infrared (FTIR).Then, the scaffolds were synthesized by radical crosslinking reaction of polycaprolacton acrylate and polyethylene glycol diacrylate (PEGDA) in the presence of hydroxyapatite (HA) particles and particulate technique with sodium chloride. The prepared samples were characterized using techniques such as scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), and dynamic mechanical thermal analysis (DMTA). Results show that increasing the ratio of PEGDA to polycaprolactone diacrylate (PCLDA) led to increase of tan δ peak and decrease of compressive modulus of the network, respectively. It was found that the incorporation of HA particles with the polymer matrices resulted in an increased of compressive modulus and a decrease of tan δ peak. Cytocompatability of the scaffolds were assessed by direct contact test and staining cell. Results indicated no toxicity, and cells attached and spread on the pore walls offered by the scaffols. Thus, the results indicated that the PCLDA/PEGDA/HA scaffolds have the potential of being used as promosing substrates in bone tissue engineering. Manuscript profile

Open Access Article

36 - Corrosion Inhibition of Polyethylene Glycol on Carbon Steel in Sulfuric Acid Solutions and its Synergism with Schiff Base
sina jahadi mojtaba nasr esfahani

The inhibiting action of Schiff base and polyethylene glycol (Salpn-PEG) complexes on low-carbon steel corrosion in 0.5 M sulfuric acid was examined using weight loss, potentiodynamic polarization and spectroscopy electrochemical impedance (EIS) techniques. Schiff base More

The inhibiting action of Schiff base and polyethylene glycol (Salpn-PEG) complexes on low-carbon steel corrosion in 0.5 M sulfuric acid was examined using weight loss, potentiodynamic polarization and spectroscopy electrochemical impedance (EIS) techniques. Schiff base N, N’-bis(salicyladehyde)-1,3-diaminopropane (Salpn) was synthesized by salicylaldehyde and 1,3- diaminopropane. PEG/Salpn complex with weight ratio 1:4, 2:4 and 3:4 of Salpn and PEG were prepared in methylene chloride solvent by a simple deporotonation procedure. Obtained Results show that PEG/IMZ complex is very effective corrosion inhibitor of carbon steel in the acid environment in compare with PEG, Salpn and noncomplex form of them. Maximum corrosion inhibition was obtained for PEG/Salpn complex with weight ratio 1:4 of Salpn and PEG. The inhibition efficiency increased with the increase in the temperature up to 45°C and decrease in higher temperatures. Results from all the corrosion tests were examined using SEM and are in reasonable good agreement. Adsorption thermodynamic data (〖K 〗_ads and 〖∆G〗_ads ) was calculated using the weight loss data Manuscript profile

Open Access Article

37 - In vitro investigation of the GdF3:Bi nanoparticles synthesized via hydrothermal method as the dual MRI-CT contrast agent
Mohammad Abbasi رضا احمدی Amirhossein Moghanian Aazam Jannati Esfehani

In the present study, the Bismuth doped GdF3 nanoparticles were synthesized via the hydrothermal method and the effect of temperature, time and NH4F concentration was investigated. The Poly Ethylene Glycol was used as the surfactant. The phases characterization was indu More

In the present study, the Bismuth doped GdF3 nanoparticles were synthesized via the hydrothermal method and the effect of temperature, time and NH4F concentration was investigated. The Poly Ethylene Glycol was used as the surfactant. The phases characterization was inducted via XRD, FE-SEM and EDS techniques. The in vitro investigation of the samples as the contast agents were performed using MR and CT imaging. the sample synthesized at 180 oC,, 6 hours and the NH4F concentration twice the Stoichiometric concentration that had the semi spherical structure with mean size lower than 100 nm was the suitable sample and the in vitro studies show that the particles act as an excellent CT contrast agent and also as an effective MRI contrast agent at concentrations between 22.5 and 180 mM. Briefly, The use of Bismuth dopant ant GdF3 nanoparticles was successfully performed and The particles can used as the potential MRI-CT contrast agents. Manuscript profile

Open Access Article

38 - بررسی آزمایشگاهی اثر نانوذرات جامد هیبریدی نانولوله کربنی و اکسید منیزیم بر هدایت حرارتی اتیلن گلیکول
مسعود وفایی مسعود افرند

  در دهه اخیر نانو سیالات پیشرفته ی جدیدی که از ذرات مختلف تشکیل شده اند مورد توجه محققان قرار گرفته اند. این گونه از نانوسیالات، که به نانوسیالات هیبریدی معروف هستند، عموما از ترکیب دوگونه مختلف نانوذرات ترکیب شده در سیال پایه به دست می آیند. در این مقاله، بررسی آ More

  در دهه اخیر نانو سیالات پیشرفته ی جدیدی که از ذرات مختلف تشکیل شده اند مورد توجه محققان قرار گرفته اند. این گونه از نانوسیالات، که به نانوسیالات هیبریدی معروف هستند، عموما از ترکیب دوگونه مختلف نانوذرات ترکیب شده در سیال پایه به دست می آیند. در این مقاله، بررسی آزمایشگاهی اثر نانوذرات جامد هیبریدی نانولوله کربنی و اکسید منیزیم بر ضریب هدایت حرارتی اتیلن گلیکول ارائه شده است. آزمایش‌ها در بازه دمایی 25 تا 50 درجه سانتی گراد برروی نمونه هایی با کسر حجمی 05/0٪، 1/0٪، 15/0٪، 2/0٪، 4/0٪ و 6/0٪ انجام شد. اندازه گیری ها نشان داد که با افزایش مقدار نانوذرات و افزایش دما، ضریب هدایت حرارتی تا 3/23٪ افزایش می یابد. در پایان یک رابطه تجربی جدید به منظور پیش بینی ضریب هدایت حرارتی ارائه شد و تحلیل حاشیه انحراف برای آن پیشنهادی انجام شد. نتایج این تحلیل ها نشان داد که حداکثر حاشیه انحراف 95/0٪ بود که بیانگر دقت قابل قبول رابطه پیشنهادی برای پیش بینی مقادیر ضریب هدایت حرارتی نانو سیال است Manuscript profile

Open Access Article

39 - Drought tolerance of chickpea (Cicer arietinum L.) varieties in seedling and adult stages
Ezzat Karami Omid Karami

Drought stress is one of the most important limiting factors in the expansion and regeneration of plants in the agricultural systems and natural environment, which the best way to deal with it is to introduce cultivars resistant to stress. For this purpose, by experimen More

Drought stress is one of the most important limiting factors in the expansion and regeneration of plants in the agricultural systems and natural environment, which the best way to deal with it is to introduce cultivars resistant to stress. For this purpose, by experimenting in the 2015 -2016 cropping year, the response of 5 cultivars of chickpea including 3 Kabuli cultivars (Arman, Azad and ILC482) and 2 Desi cultivars (Pirooz and Kaka) to drought stress resistance under 5 levels of water potential (0, -3, -6, -9 and -12 times), using 6000 polyethylene glycol in the laboratory in a factorial design in a completely randomized design with 3 replications. Cultivars were evaluated in field conditions in the form of a randomized complete block design with 4 replications at the research site of the Kurdistan Agricultural Research Center. The results showed that there are significant relationships between the characteristics measured in laboratory and field conditions. Among the studied cultivars, only Desi cultivars showed good germination potentials in (-9) and (-12) times. Therefore, in terms of drought stress tolerance at the germination stage, they had a significant advantage over Kabuli cultivars. In reducing the potential from zero to (-6) times, the greatest difference was seen in all traits. The highest number of days to flowering, day to maturity and the number of seeds per plant belonged to Kaka cultivar and the highest grain yield belonged to Arman cultivar. Cluster analysis revealed the similarity of Kabuli cultivars and their genetic distance from Desi cultivars. Manuscript profile

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