(2016). Determination the optimal conditions for extraction flavonoids and total phenols from green tea leaves and evaluate their antioxidant activity. , 12(1), 147-160.
. "Determination the optimal conditions for extraction flavonoids and total phenols from green tea leaves and evaluate their antioxidant activity". , 12, 1, 2016, 147-160.
(2016). 'Determination the optimal conditions for extraction flavonoids and total phenols from green tea leaves and evaluate their antioxidant activity', , 12(1), pp. 147-160.
Determination the optimal conditions for extraction flavonoids and total phenols from green tea leaves and evaluate their antioxidant activity. , 2016; 12(1): 147-160.

Determination the optimal conditions for extraction flavonoids and total phenols from green tea leaves and evaluate their antioxidant activity

journal of kerbala university
Article 1, Volume 12, Issue 1, 2016, Pages 147-160    PDF (0 K)
Abstract
This study included the extraction of flavonoids , total phenols and antioxidant from green tea leaves and extract . The result revealed the This study included determining the optimal conditions for extracting flavonoids and total phenols and antioxidants from green tea leaves and the results showed that the ethyl alcohol concentration (80, 80, 30)% and methanolic alcohol concentration (70,70, 10)% is the favorable for extraction flavonoids and total phenols and antioxidants respectively, while acetone concentrations (70,50%) gave the optimal results to extract flavonoids and total phenols respectively, while all concentrations was equal to extract antioxidants.
It turns out that the optimal extraction time to extract flavonoids was at a maximum after 36 hours, while 24 hours is best for the extracting total phenols and antioxidants
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