Molecular distinction and population structure of Indian mustard [Brassica juncea (L.) Czern.]     

Yadav  Prashant  Yadav  Sushma  Mishra  Anurag  Chaudhary  Rajat  Kumar  Arun  Meena  Hari Singh  Rai  Pramod Kumar 《Genetic Resources and Crop Evolution》2022,69(5):1855-1866

Genetic Resources and Crop Evolution - Rapeseed-mustard is one of the most important oilseed crops and providing a major source of edible oil in the world besides having other economic importance...  相似文献   

Microwave-assisted efficient extraction of different parts of Hippophae rhamnoides for the comparative evaluation of antioxidant activity and quantification of its phenolic constituents by reverse-phase high-performance liquid chromatography (RP-HPLC)     

Sharma UK  Sharma K  Sharma N  Sharma A  Singh HP  Sinha AK 《Journal of agricultural and food chemistry》2008,56(2):374-379

The outcome of different extraction procedures (microwave, ultrasound, Soxhlet, and maceration) on the antioxidant activity of seeds, leaves, pulp, and fruits of Hippophae rhamnoides (sea buckthorn or SBT) was investigated by two different bioassays: 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) and 2,2'-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays. The SBT extracts were found to possess strong antioxidant activity measured in terms of TEAC (2.03-182.13 and 6.97-282.75 mg/g) with ABTS and DPPH assays, respectively. In general, the antioxidant capacity of microwave-assisted extracts was found to be significantly higher than those obtained by ultrasound-assisted extraction (UAE) and maceration while being slightly higher than Soxhlet extracts. Further, microwave extracts of seeds were found to possess maximum antioxidant capacity followed by leaves, fruits, and pulp. Also, the chemical composition of extracts, studied in terms of the total phenolic content, was found to be in the range of 1.9-23.5 mg/g Gallic acid equivalent (GAE), which indicates a strong correlation between antioxidant activity and phenolic content present in the SBT. In addition, some of its bioactive phenolic constituents, such as rutin ( 1), quercetin-3- O-galactoside ( 2), quercetin ( 3), myricetin ( 4), kaempferol ( 5), and isorhamnetin ( 6), were also quantified in different extracts by reverse-phase high-performance liquid chromatography (RP-HPLC).  相似文献   

Aboveground biomass and carbon stock in the largest sacred grove of Manipur,Northeast India     

Aahen Chanu Waikhom  Arun Jyoti Nath  P. S. Yadava 《林业研究》2018,29(2):425-428

Aboveground biomass and carbon stock in the largest sacred grove of Manipur was estimated for trees with diameter [10 cm at 1.37 m height.The aboveground biomass,carbon stock,tree density and basal area of the sacred grove ranged from 962.94 to 1130.79 Mg ha~(-1),481.47 to 565.40 Mg ha~(-1) C,1240 to 1320 stem ha~(-1) and79.43 to 90.64 m~2 ha~(-1),respectively.Trees in diameter class of 30–40 cm contributed the highest proportion of aboveground biomass(22.50–33.73%).The aboveground biomass and carbon stock in research area were higher than reported for many tropical and temperate forests,suggesting a role of spiritual forest conservation for carbon sink management.  相似文献   

Effects of Arabinoxylans on Activation of Murine Macrophages and Growth Performance of Broiler Chicks     

Pingyi Zhang  Jennifer L. Wampler  Arun K. Bhunia  Kristin M. Burkholder  John A. Patterson  Roy L. Whistler 《Cereal Chemistry》2004,81(4):511-514

Arabinoxylans occur in a wide variety of agricultural products and may contribute a significant portion of human dietary fiber intake. Corn hulls and banana peels are potential sources of arabinoxylans with isolation yields of ≈40 and 10% when extracted with dilute alkali. A broiler chick growth study was performed to determine the effect of extracted corn hull arabinoxylan on performance and attachment of Salmonella, as a representative of an enteric pathogen, to the ileum. Ability of arabinoxylans to activate a macrophage cell line as an immune stimulator was determined by respiratory burst assay. Corn hull arabinoxylan tended to increase body weight gain and reduced attachment of Salmonella to ileal tissue in broiler chicks undergoing mild heat stress. Arabinoxylans from corn hulls and banana peels showed positive oxidative burst in macrophage cells. Collectively, these data indicate the two arabinoxylans have the potential to be used as health‐promoting dietary supplements.  相似文献   

Kinetic study of hepatic β-glucuronidase in the Indian major carp, <Emphasis Type="Italic">Labeo rohita</Emphasis> (Hamilton)     

Arun M. Chilke 《Fish physiology and biochemistry》2010,36(4):1145-1149

Liver is the metabolic factory and contains several valuable enzymes that catalyze biochemical reactions. β-glucuronidase is one of the well-known lysozymes that participates in the carbohydrate metabolism in the tissues of various vertebrates. In the present study, an attempt was made to study the kinetic properties of hepatic β-glucuronidase of the Indian major carp (IMC), Labeo rohita. It was observed that the enzyme activity increased largely at pH 5 (0.1 M acetate buffer) when exposed to 38°C. However, the maximum activity was noticed at 52°C and later it started declined up to 70°C. It was also observed that with time the enzyme activity increased until substrate was completely used up. It has been concluded that it is a heat stable enzyme and cannot be destroyed at room temperature. Enzyme activity was observed to increase in response to increase in enzyme and substrate concentrations. The reaction velocity maxima (Vmax) and Michaelis constant (Km) were recorded using Lineweaver–Burk plot that was 18.182 μg/h and 2.907 mM, respectively.  相似文献   

In situ kinetics of renal β-glucuronidase in teleost, <Emphasis Type="Italic">Labeo rohita</Emphasis> (Hamilton)     

Arun M. Chilke 《Fish physiology and biochemistry》2010,36(4):911-915

Liver is the metabolic factory and contains several valuable enzymes that catalyze biochemical reactions. β-glucuronidase is one of the well-known lysozymes that participates in the carbohydrate metabolism in the tissues of various vertebrates. In the present study, an attempt was made to study the kinetic properties of hepatic β-glucuronidase of the Indian major carp (IMC), Labeo rohita. It was observed that the enzyme activity increased largely at pH 5 (0.1 M acetate buffer) when exposed to 38°C. However, the maximum activity was noticed at 52°C and later it started declined up to 70°C. It was also observed that with time the enzyme activity increased until substrate was completely used up. It has been concluded that it is a heat stable enzyme and cannot be destroyed at room temperature. Enzyme activity was observed to increase in response to increase in enzyme and substrate concentrations. The reaction velocity maxima (Vmax) and Michaelis constant (Km) were recorded using Lineweaver–Burk plot that was 18.182 μg/h and 2.907 mM, respectively.  相似文献   

Protein at 69 kDa Expressed During the Initial Maturation Stage of Buckwheat (Fagopyrum esculentum) Seed Development     

Arun Nair  Taiji Adachi 《Cereal Chemistry》1999,76(2):321-322

  相似文献   

Genetic variations and population level admixture assessment for conservation planning of endangered Zanthoxylum armatum DC. in Western Himalaya     

Purohit  Sumit  Jugran  Arun K.  Bhatt  Indra D.  Nandi  Shyamal K. 《Genetic Resources and Crop Evolution》2022,69(5):1737-1752

Genetic Resources and Crop Evolution - Zanthoxylum armatum DC. (Family Rutaceae) is an important species gaining tremendous popularity owing to its multiple uses in diverse medicine systems. The...  相似文献