نتایج جستجو برای: total flavonoids
تعداد نتایج: 813770 فیلتر نتایج به سال:
*Corresponding author e-mail: [email protected] A b s t r a c t. The aim of the present study was to reveal an effective extraction procedure for maximization of the yield of steviol glycosides and total phenolic compounds as well as antioxidant activity in stevia extracts. Ultrasound assisted extraction was compared with conventional solvent extraction. The examined solvents were water (100oC/24 ...
Grapes are rich in phytochemicals with many proven health benefits. Phenolic profiles, antioxidant and antiproliferative activities of twenty-four selected Vitis vinifera grape cultivars were investigated in this study. Large ranges of variation were found in these cultivars for the contents of total phenolics (95.3 to 686.5 mg/100 g) and flavonoids (94.7 to 1055 mg/100 g) and antioxidant activ...
background & aim:extracts of roselle calyx, possess compounds which could be considered as a great source of natural antioxidants. in this project, antioxidant activities, phenolic compounds content and their correlation analysis on calices of roselle (hibiscus sabdariffa) was investigated. experimental: total polyphenolic compound, flavonoids and anthocyanins were determined spectrophot...
This study addresses the effects of gamma irradiation (1, 5 and 8 kGy) on color, organic acids, total phenolics, total flavonoids, and antioxidant activity of dwarf mallow (Malva neglecta Wallr.). Organic acids were analyzed by ultra fast liquid chromatography (UFLC) coupled to a photodiode array (PDA) detector. Total phenolics and flavonoids were measured by the Folin-Ciocalteu and aluminium c...
plants with hypoglycemic properties are important in the treatment of diabetes. one of the mechanisms in reducing blood glucose is preventing the digestive absorption of glucose. the aim of this study was to evaluate the antioxidant properties of some traditional medicinal plants collected from different regions of iran and their effects on glucose diffusion decrease. the amounts of phenolic co...
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