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Open Access Article
1 - Evaluation of the Antioxidant Activity of Some Rosaceae Plants as an Alternative to the Synthetic Antioxidants in Food Industry
فائزه Kamali A.R Sadeghi Mahonak زهرا Nasiri farIntroduction : The applications of natural antioxidants with medicinal values are growing in the preventive medicine and food industries. This study investigates the antioxidant ability of five species of Rosaceae family and compares the activities with the synthe MoreIntroduction : The applications of natural antioxidants with medicinal values are growing in the preventive medicine and food industries. This study investigates the antioxidant ability of five species of Rosaceae family and compares the activities with the synthetic antioxidants BHT, BHA as well as the natural ascorbic acid. Materials and Methods : In this study, the phenolic content of the methanolic extract of the samples were isolated and the antioxidant activities of five species of Rosaceae were determined by using DPPH free radical and nitric oxide scavenging , and the results were compared to the synthetic antioxidant Results : The results showed that the content of studied plant samples ranged from 0.51±0.41 – 35.53±0.89 mgGAEg -1. Concentraition of extract for scavening 50 percent of free radicals and nitric oxide radicals varied from 77.42 ± 0.91 to 1484.2 ± 96.44 and 233.24±3.39- 1572.46±203.76 Ug/ml. The highest phenolic amount was related to the Rosa damascena Mill leaf and next grade Cydonia oblonga Mill leaf. Extract of damask Rose, Quince leaves, damask Rose petals, Quine fruit and seed and Almond seed had high antioxidant activity and no significant difference was observed between them and the synthetic antioxidants (BHT, BHA and Vit C). Conclusion : The results of this study clearly suggested that there is a significant relationship between the antioxidant activity and the phenolic concentration and the extracts of damask Rose, Quince leaves, damask Rose petals, Quince fruit and seed and almond seed might be employed as appropriate alternatives to the synthetic antioxidants. Manuscript profile -
Open Access Article
2 - Understanding the phytochemical constitution, antioxidant potential and spectral characteristics of aqueous extracts of the chosen leafy vegetables from south India
Sobha Kota Pradeep Dumpala Hariseetharam Prasad Dachepalli Anantha Ratna Kumari -
Open Access Article
3 - Simultaneous optimization of extraction of bioactive compounds and antioxidant activity of aerial parts of Ammi visnaga L. using response surface methodology
Zineb El Jabboury Smail Aazza Driss Ousaaid Oumaima Chater Uros Gasic Peđa Janaćković Zora Dajic Stevanovic Stefan Kolašinac Meryem Benjelloun Lahsen El Ghadraoui -
Open Access Article
4 - Effect of solvent, time and method of extraction on the amounts of phenolic, flavonoid and the antioxidant activity of the extract of Ixiolirion tataricum (Pall.) Schult. & Schult.f.
Fatemeh Rabbani Malihe Samadi Kazemi -
Open Access Article
5 - Relationship between the biological parameters of Diuraphis noxia (Hemiptera: Aphididae) and the host phenolic content
H. Tabasian sh. goldasteh Gh. h. Moravvej E. Sanatgar M. Ghadamyari -
Open Access Article
6 - Effect of 6-benzylaminopurine and methyl jasmonate on yield and quality improvement of the strawberry ‘Albion’
Farzad Asgari Sepideh Kalateh Jari Babak Motesharezadeh Marzieh Ghanbari Jahromi Weria WeisanyTo study the effects of 6-benzylaminopurine (6-BAP) and methyl jasmonate (MJ) on various quantitative and qualitative characteristics of the Albion strawberry, a factorial experiment based on randomized complete blocks design was carried out with three replications in a MoreTo study the effects of 6-benzylaminopurine (6-BAP) and methyl jasmonate (MJ) on various quantitative and qualitative characteristics of the Albion strawberry, a factorial experiment based on randomized complete blocks design was carried out with three replications in a greenhouse located in Damavand county. The first factor was 6-BAP at two levels (control and 100 mg/L) and the second factor was MJ at three levels (control, 100 and 200 µM). Plants were sprayed twice with 6-BAP and thrice with MJ, during the vegetative and the reproductive growth phases, respectively. Application of 6-BAP during the vegetative stage, resulted in production of plants with more and larger leaves and increased crown diameter. The highest fruit count and weight, SPAD, flavor index, total anthocyanin and fruit shelf-life, was related to the 100 mg/L 6-BAP + 200 µM MJ treatment. Using cytokinin combined with each of the MJ concentrations, resulted in significant improvement of the plant yield and fruit firmness compared to the control. Therefore, pre-harvest application of these plant growth regulators can be suggested for increasing production rates, improving the quality, and the shelf-life of this vulnerable fruit and also reducing its waste. Manuscript profile -
Open Access Article
7 - Growth and Biochemical Properties of Green Basil (Ocimum basilicum L.) Affected by Foliar Application of Biostimulants
Mozhgan Alibakhshi Hossein Ali Asadi-Gharneh -
Open Access Article
8 - Phytochemical, antioxidant and antibacterial activities in Pulicaria gnaphalodes (Vent.) Boiss, Rhazya stricta L., Salvadora persica L., Teucrium polium L., Hibiscus sabdariffa L. from Sistan and Baluchestan province
Omid Azizian Shermeh Moharam Valizadeh Ali Qasemi Ahmad Mehraban Afsaneh Kamali deljooThis present study is carried out to evaluate the phytochemical compounds such as total phenolic and total flavonoid contents, antioxidant and antibacterial activities of three extracts (methanolic, ethanolic and aqueous) in five different species of medicinal plants: P MoreThis present study is carried out to evaluate the phytochemical compounds such as total phenolic and total flavonoid contents, antioxidant and antibacterial activities of three extracts (methanolic, ethanolic and aqueous) in five different species of medicinal plants: Pulicaria gnaphalodes (Vent.) Boiss., Rhazya stricta L., Salvadora persica L., Teucrium polium L., and Hibiscus sabdariffa L.. These samples were collected in different regions from Sistan and Baluchestan, 2014.The plant extracts were obtained by maceration method, phenolic and flavonoid contents were determined by Folin-Ciocaltiu and Aluminum Chloride colorimetric, antioxidant activities were studied by two methods (DPPH and FRAP) and then antimicrobial activities were estimated by Disk-Diffusion method against four bacteria (Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Salmonella typhimurium. The results were showed that in all species, the methanolic extract had high amount of secondary compounds, antioxidant and antibacterial activities. The methanolic extract of Hibiscus sabdariffa L. had maximum total phenolic (32.54±6.44 mgGAE/g) , flavonoid contents(27.11±1.00mgQUE/g) and antioxidant activity, (IC50=17.34±1.21µg/ml, 55.19±2.27 mM Fe2+/mg) and antibacterial activity against Staphylococcus aureus with inhibition zone (27±1.00mm) was the most sensitive bacteria to plant extracts. In contrast, the aqueous extract of Teucrium polium L. had the minimum value of total phenolic , flavonoid contents , antioxidant activity and antibacterial activity .Overall, these plants could be a good candidate for the treatment of diseases caused by oxidative stress and pathogenic microbes. Manuscript profile -
Open Access Article
9 - Study the effect of intercropping and chemical fertilizers on essential oil, phenolic and flavonoid contents and some biological properties of hyssop (Hyssopus officinalis L.)
Farhad Habibzadeh Behvar AsghariIn order to reduce the use of chemical fertilizers in hyssop (Hyssopus officinalis L.) production, an investigation was conducted in the research farm of Imam Khomeini International University, Qazvin, Iran, in 2016. The study was carried out as a factorial experiment b MoreIn order to reduce the use of chemical fertilizers in hyssop (Hyssopus officinalis L.) production, an investigation was conducted in the research farm of Imam Khomeini International University, Qazvin, Iran, in 2016. The study was carried out as a factorial experiment based on randomized complete block design with two factors and three replications. The experimental factors consisted of different planting patterns (factor A) on two levels including sole culture of hyssop and additive intercropping of 100% hyssop + 50% lentil and application of chemical fertilizers (factor B) on two levels including non-application and application of NPK. Essential oil (distillation with clevenger), nitrogen, phosphorus and potassium contents, extract of plant (maceration method), phenolic and flavonoid contents (colorimetric method), DPPH radical scavenging and total antioxidant activity of vegetative parts of the plant at the beginning of flowering stage were evaluated. The results exhibited that all the traits, except for extract content, were significantly affected by the treatments. Oil yield, phenolic and flavonoid content, DPPH radical scavenging activity and total antioxidant activity were significantly stronger in intercropping + fertilizer application compared to the other treatments. In the other hand, intercropping enhanced the phenolic and flavonoid compounds, essential oil and extract yield of hyssop. Secondary metabolites, such as phenolic, flavonoid, and essential oil, are the defense system of plant, which were increased by competition between hyssop and lentil (as a stressor). Antioxidant properties also increased due to the increase in phenolic and flavonoids content. Manuscript profile -
Open Access Article
10 - Phytochemical, antioxidant and phenolic content Survey of leaves and flowers hydroalcoholic extracts of the Conocarpus erectus and biosynthesis of gold and silver nanoparticles using this extracts
FATEMEH gORJIAN roya mirza jani maryam kolahiThe identification of various bioactive compounds, high phenolic content and high antioxidant activity in extracts of Conocarpus erectus reveals the potential application of this plant as a natural source of antioxidant with the capability of synthesizing nanoparticles MoreThe identification of various bioactive compounds, high phenolic content and high antioxidant activity in extracts of Conocarpus erectus reveals the potential application of this plant as a natural source of antioxidant with the capability of synthesizing nanoparticles for medicine. The aim of this study was to examine the phytochemical compounds in the leaves and flowers of Conocarpus erectus L. and to determine the phenolic content and antioxidant properties of these extracts. Conocarpus erectus L leaves and flowers were extracted utilizing the Soxhlet and Maceration extraction methods. Phytochemical compounds present in plant extracts were analyzed by the use of gas chromatography mass spectrometry. The amount of phenolic content and antioxidant activity in leaf and flower extracts were determined, and the gold and silver nanoparticles were synthesized using these extracts. Additionally the diameter of gold and silver nanoparticles synthesized using extracts of the leaves and flowers were measured. 19 chemical compounds were identified that were mainly in methanolic extracts of leaves prepared by Soxhlet extraction. Steroids were detected in both extracts The amount of phenolic compounds was high. In this study, the extract of flower obtained by Soxhlet method had the highest phenolic compounds. Of the plant extracts evaluated, the extracts obtained by the Soxhlet method had the lowest IC50 and thus the highest antioxidant capacity. Extracts were also utilized in the preparation of nanoparticles of gold and silver. Manuscript profile -
Open Access Article
11 - Variation in the Essential Oil Constituents and Polyphenolic Contents of Satureja bachtiarica Bunge. from Six Populations of Fars Province
sahar yoosefi vahid Rowshan Kambiz Larijani Hasanali Naghdi Badi Ebrahim SabokiAbstract Satureja is belonging to the family Lamiaceae. Satureja bachtiarica Bunge. is one of the endemic species. In this study, aerial parts of S. bachtiarica were colleted in full flowering stages from six populations of Fars Province and after were dried in laborato MoreAbstract Satureja is belonging to the family Lamiaceae. Satureja bachtiarica Bunge. is one of the endemic species. In this study, aerial parts of S. bachtiarica were colleted in full flowering stages from six populations of Fars Province and after were dried in laboratory conditions, the essential oils (EOs) and extracts were obtained by hydrodistillation and macetation methods. Chemical compositions of the EOs were analyzed by GC-FID and GC-MS and the phenolic contents were determined by HPLC analysis. EO yields were from 1.1 to 2.4 % (w/w) based on dried material. The major constituents of the EOs were thymol ( 10.9-49.8 %), carvacrol (1.1-49.7 %), p-cymene (18.0-32.8 %), γ-terpinene (4.3-7.5 %), linalool (3.3-5.1 %) and caryophyllene oxide (1.6-2.3 %). Among six populations, the EOs from the Kohanjan and Abadeh-Didegan populations had the highest thymol and carvacrol amount (49.8 and 49.7 %), respectively. Narengenin, carvacrol, hesperedin, eugenol, hesperetin, rosmarinic acid and thymol were the main phenolic copmounds in six studied regions. These results showed that variation of ecological characters had effect on quality of S. bachtiarica EOs and extracts. Manuscript profile -
Open Access Article
12 - بررسی محتوای فنلی، فلاونوئیدی و توانایی آنتی اکسیدانی برگ، گل، دانه و اسانس گیاه دارویی اسطوخودوس Lavandula officinalis در مقایسه با آنتی اکسیدان های سنتزی
شاهین مردانی نژادBackground & Aim: Lavandula officinalis is one of great importance due to its aromatic compounds and medicinal uses but not many studies have been done on the antioxidant power of different plant organs.Experimental: Antioxidant ability of Lavender leaves, flowers, MoreBackground & Aim: Lavandula officinalis is one of great importance due to its aromatic compounds and medicinal uses but not many studies have been done on the antioxidant power of different plant organs.Experimental: Antioxidant ability of Lavender leaves, flowers, seeds and essential oil based on inhibition of free radicals and nitric oxide, inhibition of linoleic acid peroxidation by ferric thiocyanate and inhibition of malondialdehyde by thiobarbituric acid in compare with synthetic antioxidants Butyl Hydroxy Toluene (BHT) and Butyl Hydroxy Anisole (BHA) were measured.Results: The phenolic and flavonoid content of the leaf was 96.49±6.35 (µg gallic acid per mg dry weight of the extract) and 39.97±3.36 (µg of catechins per mg dry weight of the extract) respectively, more than other samples. In the study of antioxidant power, plant leaf extract with 48.66±5.5 μg was able to inhibit 50% of DPPH radicals, which had a weaker ability than synthetic antioxidants. The leaf extract of the plant had a higher ability than the synthetic antioxidant BHA to inhibit nitric oxide radicals and its ability was as high as BHT. The ability to inhibit the linoleic acid peroxidation of leaf and flower extracts at the beginning of the functional test showed similar BHT and BHA, at the end, the ability of leaf extract was stronger than BHA and weaker than BHT. The inhibitory potential of malondialdehyde leaf extract (82.66±1.5%) was better than BHA and weaker than BHT. Pearson correlation coefficients between phenolic content and antioxidant capacity of samples were high. Examination of leaf essential oil using GC-MS technique showed the presence of phenolic compounds in the plant.Recommended applications/industries: Due to the dangers of synthetic antioxidants in the food industry, the results of this study could introduce another application of this plant in terms of strong antioxidant properties. Manuscript profile -
Open Access Article
13 - Effects of exogenous salicylic acid on antioxidative responses, phenolic metabolism and photochemical activity of strawberry under salt stress
Soheila Samadi Ghader Habibi Atousa Vaziri -
Open Access Article
14 - Physiological and biochemical changes of Alfalfa (Medicago sativa L.) cultivars during different growth stages
Alireza Khedri Behzad Sani behnam Zand Hamid Mozafari Payam Moavni -
Open Access Article
15 - Total phenolic content and antioxidant activity of fruit and leaf of Bene (Pistacia atlantica subsp. Kurdica) in Ilam province .
Parviz Malekzadeh Ali Asghar Hatamnia Hatamnia Khoshnood Nourollahi -
Open Access Article
16 - Phytochemical study of Zataria multiflora Boiss in different ecological conditions
Ahmad Niczad Shahram Sharafzadeh Ardalan Alizadeh Bahram Amiri Forood BazrafshanIn the present study, 4 different ecotypes of Zataria multiflora medicinal plant (Estahban, Neyriz, Fasa and Larestan), were investigated in order to identify the best ecotype in terms of the highest percentage of essential oil, essential oil components, total phenolic MoreIn the present study, 4 different ecotypes of Zataria multiflora medicinal plant (Estahban, Neyriz, Fasa and Larestan), were investigated in order to identify the best ecotype in terms of the highest percentage of essential oil, essential oil components, total phenolic content, antioxidant properties and polyphenolic compounds of methanolic extract. Essential oils were extracted from all ecotypes by hydro-distillation via Clevenger apparatus, then analyzed using gas chromatography (GC) and gas chromatograph connected to mass spectrophotometer (GC/MS) . In total, 52 compounds were identified in the essential oils of different ecotypes of Zataria multiflora. The main chemical constituents were, thymol (34.41 - 54.35 %), p-cymene (9.49 - 19.85 %), -Terpinene (7.34 - 16.70 %) and carvacrol (5.35 - 15.34 %). Determination of total phenol and antioxidant activity of methanolic extract were determined using the Folin-Ciocalteau reagent and by the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay, respectively. Polyphenolic components of extracts of different ecotypes were determined using high performance liquid chromatography (HPLC). Total phenols varied from 234.66 to 302.28 mg gallic acid equivalents/g dry weight, IC50 values in the radical scavenging assay ranged from 348.63 to 453.76 mg/mL. The predominant polyphenolic compounds in the extracts of all ecotypes included: Thymol, Carvacrol, Quercetin and Rosmarinic acid. The results showed that Neyriz ecotype has the highest percentage of essential oil and the highest percentage of thymol. The highest amount of phenolic compounds and antioxidant activity was observed in Larestan ecotype. The predominant polyphenolic component was thymol and was observed in the Fasa ecotype. Manuscript profile -
Open Access Article
17 - Effects of Pre-germination Treatment on the Phytate and Phenolic Contents of Almond Nuts
Liang Lin Lin Freda Xin You Giam Xin Min Foo Nadia Marie Hui Lian Yeo Charlene Jia Ling Koh Nur Hatika Binte Sa’Aban Wai Mun Loke -
Open Access Article
18 - Contents of Aerial Parts of Salvia leriifolia Benth
Zahra Hosseinpoor Mohsen Abadi Behnam Mahdavi Esmaeil Rezaei-Seresht -
Open Access Article
19 - Simultaneous optimization of extraction of bioactive compounds and antioxidant activity of Ammi visnaga (L.) Lam aerial parts using response surface methodology
Zineb El Jabboury Smail Aazza Driss Ousaaid Oumaima Chater Uroš Gašić Peđa Janaćković Zora Dajic Stevanovic Stefan Kolašinac Meryem Benjelloun Lahsen El GhadraouiIn this report, different extracts from the aerial parts of Ammi visnaga (L.), e.g., flowers, leaves, and stems were prepared using water, methanol, and ethanol. To optimize the extraction process, the design of mixtures was carried out using different extracting solven MoreIn this report, different extracts from the aerial parts of Ammi visnaga (L.), e.g., flowers, leaves, and stems were prepared using water, methanol, and ethanol. To optimize the extraction process, the design of mixtures was carried out using different extracting solvents and their combinations. The special cubic model explained the variance of the TPC and the antioxidant activity of the extracts at a level of R2 > 95%. In general, the analysis of the model-derived response surfaces revealed that in binary mixtures (50% ethanol + 50% methanol), the yielded values of phenolic compounds and the antioxidant activity increase with the water proportion of different prepared mixtures. The ability of the quaternary mixture to extract the phenolic compounds was also positively and significantly influenced by the water content, creating a mild polar medium for the extraction of phenolic compounds. The phenolic profile of different extracts under study revealed the presence of a cocktail of active ingredients, including chlorogenic acid, caffeic acid, rutin, p-coumaric acid, etc. especially the flower extract of A. visnaga (L.). Manuscript profile
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