2010
DOI: 10.22401/jnus.13.3.17
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Antioxidant Activity of Phenolic Extracts From Black Tea

Abstract: Phenolic compounds extracts from black tea (obtained from local markets) were extracted by hot and cold methods to test their antioxidant activity by determination of thiobarbituric acid No. (TBA%). Effect of different concentrations( 0.02, 0.04, 0.08 ) % of extracts and time of incubation (30days) at 40 C were studied, hot method phenolic extract(S 2 )gave a positive concentration effect on antioxidant activity, cold method phenolic extract ( S 1 ) gave a limited concentration effect. S 1 and S 2 gave continu… Show more

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“…2. The total antioxidants content, total phenols content and total flavonoids content in the dried fruit bodies calculated according to the procedure described by Albaldawi et al 13 . 3.…”
Section: Preparation Of Gel Mold and Samplementioning
confidence: 99%
“…2. The total antioxidants content, total phenols content and total flavonoids content in the dried fruit bodies calculated according to the procedure described by Albaldawi et al 13 . 3.…”
Section: Preparation Of Gel Mold and Samplementioning
confidence: 99%