List of Articles carotenoid

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  1 - The effect of sonication on bioactive compounds in carrot juice
  علی Ayaseh محمد Alizadeh عباس Mehrdad محسن Esmaiili یوسف Javadzadeh
  The objective of this research was to determine the effect of ultrasound treatment on bioactive compounds (including total phenolic, total flavonoids, total carotenoids, ascorbic acid) of carrot juice in comparison with conventional thermal process. Carrot juice samples More

  The objective of this research was to determine the effect of ultrasound treatment on bioactive compounds (including total phenolic, total flavonoids, total carotenoids, ascorbic acid) of carrot juice in comparison with conventional thermal process. Carrot juice samples were sonicated according to D-optimal response surface design with processing variables of temperature (25, 37.5 and 50°C), time (10, 20 and 30 min) and power (350 and 400 w) at a constant frequency of 24 kHz. Results showed that ultrasound temperature (P<0.01), time (P<0.01) and power (P<0.05) significantly decreased the ascorbic acid content of carrot juice samples. Ascorbic acid contents in heat-treated and sonicated samples reveled that sonication process had more protective effect of ascorbic acid. Ultrasound temperature significantly (P<0.05) increased the total carotenoid contents of the sonicated samples. On the other hand, ultrasound duration significantly (P<0.01) decreased the total phenolic contents of the sonicated samples; nevertheless, no significant difference was observed between sonicated and heat-treated as well as control groups. Total flavonoids content of the sonicated samples was significantly (P<0.01) decreased in comparison with the heat-treated and control samples. It was concluded that ultrasound treatment as a non-thermal preservation technique, leads to better retention of bioactive compounds (especially ascorbic acid, total carotenoids and total phenolic contents) compared to thermal process. Manuscript profile
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  2 - Effects of sodium nitroprusside and potassium silicate on the growth and flowering of Gazania rigens (L.)
  Zahra Nasiri Elham Danaee
  Gazania, belongs to the family Asteraceae, is widely grown in gardens and other environments. The purpose of this study was to evaluated the effects of sodium nitroprusside and potassium silicate treatments on the growth and flowering of gazania. For these purposes, a c More

  Gazania, belongs to the family Asteraceae, is widely grown in gardens and other environments. The purpose of this study was to evaluated the effects of sodium nitroprusside and potassium silicate treatments on the growth and flowering of gazania. For these purposes, a completely randomized design was used, with three levels of sodium nitroprusside (SNP) (25, 50 and 100 μM/l), potassium silicate (PS) at the concentration of 25, 50 and 100 mg/l and control. Some important traits such as fresh and dry weight of shoot and root, number of flowers, root volume, longest root length, plant height, cell membrane stability index, petiole carotenoid, leaf chlorophyll, protein, superoxide dismutase (SOD) and peroxidase (POD) enzyme activity and flower longevity. It was observed that plan that shoot fresh/dry weight, flower number, root length, plant height, carotenoid, leaf chlorophyll was increased under 100 mg/l PS treatment. The results suggest that the application of 50 μM/l SNP has favorable effects on the raise root fresh/dry weight, root volume, cell membrane stability index, protein, SOD and POD activity. Over the growth stage, 50 mg/l PS was found to be the best treatment to maintain flower longevity with 7.2 days. Manuscript profile
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  3 - Comparison Tea Extract, 8-Hydroxyquinoline Sulfate and Rifampicin on the Vase Life of Cut Flower chrysanthemum (Denderanthema grandiflorum L. cv. Purple)
  Davood Hashemabadi Hamideh Bagheri
  Maintaining quality and longevity of cut flowers is one of the critical issues in the floriculture industry, especially in cut flowers; and one of the most important problems in chrysanthemum, as one of the most popular cut flowers. Therefore, an experiment was conducte More

  Maintaining quality and longevity of cut flowers is one of the critical issues in the floriculture industry, especially in cut flowers; and one of the most important problems in chrysanthemum, as one of the most popular cut flowers. Therefore, an experiment was conducted based on completely randomized design as pulse treatment with the three factors: tea extracts with 4 levels (5, 10, 20, and 40 %), 8-hydroxy quinoline sulfate with 4 levels (100, 200, and 400 mg l-1), and rifampicin with 3 levels (100, 200, and 400 mg l-1) on spray chrysanthemum (cv. Purple) with three replications. According to the results, the 20% tea extract treatment and 100 mg l-1 8-hydroxy quinoline sulfate treatment showed the highest vase life, petal protein, total chlorophyll, water absorption, and petal carotenoid. Manuscript profile
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  4 - Investigation of physiological properties and antioxidant activity of cumin by using of magnetic water and superabsorbent under water stress conditions
  ali ashori manochher gholipoor ahmad gholami hamid Abbasdokht
  10.30495/jdb.2022.1959313.1311
  In order to investigate magnetic and superabsorbent water on some physiological traits and antioxidant activities of cumin (Cuminum cyminum L) under water stress, an experiment in two areas of Rahanjan and German of Shahroud city in factorial form in a randomized comple More

  In order to investigate magnetic and superabsorbent water on some physiological traits and antioxidant activities of cumin (Cuminum cyminum L) under water stress, an experiment in two areas of Rahanjan and German of Shahroud city in factorial form in a randomized complete block design with Three replications were performed in the 1400-1399 crop year. The results of analysis of variance showed that the triple interaction effect of water requirement × magnetic water × superabsorbent was significant for the evaluated traits. The traits of chlorophyll a, chlorophyll b, total chlorophyll, carotenoids and anthocyanins were significant. Under moderate stress conditions, using normal water, no significant difference was observed between control and 200 kg / ha superabsorbent treatments. Most traits in Rahnjan region had higher values ​​than German region. In general, the use of magnetic water and 200 kg / ha of superabsorbent in conditions of moderate drought stress (75% water requirement) caused physiological and biochemical increase of cumin. Manuscript profile
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  5 - Comparative study on experimental coccidiosis of Ross and Cobb broilers by quantitation of plasma carotenoids
  S.SH Reza SHojae N.E Kakrodi N. Bakhtiyari
    Coccidiosis is one of the important parasitic disease in birds and animal farms which is caused by eimeria species protozoans.it has worldwide spread and infects a lot of bird species especially commercial birds.disease has clinical and sub-clinical form.moreove More

    Coccidiosis is one of the important parasitic disease in birds and animal farms which is caused by eimeria species protozoans.it has worldwide spread and infects a lot of bird species especially commercial birds.disease has clinical and sub-clinical form.moreover than direct losses like increasing of mortality,poor growth rate,decrease of carcass  quality and losses of flock uniformity,the costs of producing new anticoccidiosis vaccines and drugs,make numerous charges on poultry industry annually.comparison between two breeds of Cobb and Ross in the face of parasitical challenge by quantitation of plasma carotenoids is aim of this study.in this study 100 one day broiler chickens of two breeds of Ross and Cobb (each breed 50 chicks) divided into four groups of 25 chickens randomly and kept the same conditions.in the 21 th day of breeding.one group of each breed was callenged by 50000 spourulated eimeria oocysts of 4 main species.after challenging ,blood sample were taken from all groups.after separation of plasma from all samples,plasma carotenoids were measured by spectrophotometric method.according to the results,plasma carotenoids of challenge chickens were decreased comparing with control group significantly(p<0.01).in comparison between Cobb and Ross groups,we had a lower level of plasma carotenoids in Ross chickens that this difference was significantly(p<0.01).it seems that chickens of Cobb strain have lower intestinal damages in same condition of coccidial infection in comparison with strain.     Manuscript profile
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  6 - Study of the effect of auxin and gibberellin on growth, total chlorophyll, carotenoid and terpenoid content in Euphorbia trigona Mill.
  Hakimeh  Rezaei Aryan Sateei Tahereh A.   Aghajanzadeh Mehdi Ebadi
  This study was conducted to investigate the effect of auxin and gibberellin on Euphorbia trigona Mill. in a randomized complete block design in 2020, and in greenhouse conditions. One minute pretreatments including auxin regulators NAA, IBA and IAA at a concentration of More

  This study was conducted to investigate the effect of auxin and gibberellin on Euphorbia trigona Mill. in a randomized complete block design in 2020, and in greenhouse conditions. One minute pretreatments including auxin regulators NAA, IBA and IAA at a concentration of 500 mg / l and treatments containing GA, IAA, IBA and NAA, 250 mg / l were compared with each other and with control plants. Stems and roots fresh weight, dry weight, dry weight percentage, total photosynthetic pigments content as well as total terpenoids were measured. Fresh and dry weight and the percentage of dry weight of stem did not show sensitivity to the treatments and pretreatments, and the effects were not significant. NAA treatment had the most positive effect on roots fresh and dry weight, although the percentage of root dry weight was not significantly affected by the treatments. The highest significant increase in terpenoid content was observed in NAA treatment and NAA and IBA pretreatments. GA treatment had the most positive effects on the content of each of chlorophylls a and b, total and carotenoid content. In terms of effect on photosynthetic antenna composition, the most positive effects on the ratio of total chlorophyll to carotenoids were observed in GA, NAA, IAA and IAA pretreatments. IAA treatment also showed a significant increase in chlorophyll a to b ratio. The correlation between growth parameters with each other and also the correlation of chlorophyll content with each other and with carotenoids was positive and significant. However, the correlation of terpenoid content with none of the other traits was significant. On the other hand and from an application point of view, based on gas chromatography-mass spectrometry measurements, naphthalene-acetic-acid treatment was effective in severely increasing the content of valuable medicinal compound, bis-2-ethylhexyl phthalate, compared to the control. Manuscript profile
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  7 - The effect of hydrogen peroxide pretreatment and copper foliar application on some physiological traits and quantitative yield of SC704 maize hybrid under water deficit stress
  Abdollah Ayaran Mohamad Reza Dadnia mojtaba alavifazel شهرام لک Tayeb Sakinejad
  In order to investigate the effect of hydrogen peroxide pretreatment and copper foliar application on some physiological traits and quantitative yield of corn under water deficit stress, a Split split plot experiment was conducted in a randomized complete block design w More

  In order to investigate the effect of hydrogen peroxide pretreatment and copper foliar application on some physiological traits and quantitative yield of corn under water deficit stress, a Split split plot experiment was conducted in a randomized complete block design with four replications, plants were planted in during two years (2017-19) in Baghmalek. The main plot of the irrigation regime with 4 normal levels, stopping irrigation 40, 55 and 70 days after the appearance of tassels, the sub-plot of copper foliar spraying with two control levels and 0.30 kg net per hectare from the source of copper sulfate 50% 25 days after the emergence of tassel and sub-plot of seed treatment with hydrogen peroxide with 3 control levels, 30 and 60 mM. The results showed that the triple interaction of irrigation regime, copper foliar application and hydrogen peroxide on chlorophyll a content, chlorophyll b, total carotenoid, catalase activity, plant height, number of seeds in a row and seed yield was significant at the probability level of 1%. The highest plant height and the number of seeds in the row were obtained from copper foliar spraying treatments and the application of 60 mM hydrogen peroxide under normal irrigation conditions. Also, the highest seed yield (9530.07 kg/ha) was obtained under normal irrigation conditions and copper foliar spraying and the application of 60 mM hydrogen peroxide, which showed an increase of about 42% compared to the cessation of irrigation 40 days after the emergence of tassels and the absence of copper foliar spraying and the absence of hydrogen peroxide application. The activity of catalase increased by 67% in the condition of stopping irrigation 40 days after the appearance of tassel and copper foliar application and application of 30 mM hydrogen peroxide compared to normal and control irrigation conditions. In general, the results of the experiment showed that copper foliar spraying and application of 60 mM hydrogen peroxide in suitable humidity conditions can increase chlorophyll content, grain yield and overall improvement of corn production. Manuscript profile