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- Title
Polyphenol Contents in Eight Fruits and Their Antioxidant Activities.
- Authors
Wang Zhi-yuan; Li Qing-biao; Yang Cui-xian; Shao Wen-yao; He Ning; Wang Yuan-peng; Sun Dao-hua
- Abstract
The contents of polyphenols of peel, pulp and seed fractions of apple, pomegranate, olive, mango, banana, pineapple, grape and longan and their total antioxidant activities were studied. After ultrasound-assisted extraction with 70% aqueous acetone at room temperature, polyphenols and tannins in the plant ceils were separated and their contents were determined by Prussian blue assay. Antioxidant activities of the aqueous acetone extracts were evaluated by Ferric Reducing/ Antioxidant Power (FRAP) assay. A positive linear correlation between antioxidant activities and phenolic contents was observed. The results showed that the fruit peel and seeds of pomegranate, olive, mango, grape and longan could be considered as potential sources of antioxidants rather than just discarded as waste.
- Subjects
POLYPHENOLS; TANNINS; ANTIOXIDANTS; SEEDS; FRUIT
- Publication
Natural Product Research & Development, 2007, Vol 19, Issue 6, p1040
- ISSN
1001-6880
- Publication type
Article