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  • Title: Antioxidant and free radical scavenging effects of the tannins of Terminalia catappa L.
    Author: Lin CC, Hsu YF, Lin TC.
    Journal: Anticancer Res; 2001; 21(1A):237-43. PubMed ID: 11299741.
    Abstract:
    Reactive oxygen species (ROS) react with biological molecules and destroy the structure of cells and eventually cause free radical-induced disease such as inflammation and cancer. Previous studies showed that an aqueus extract of Terminalia catappa L. exhibited superoxide radical scavenger activity and modification of mitomycin C-induced clasto-genicity. In order to investigate the multiple antioxidant effect of the tannin components of T. catappa L., their ability to prevent lipid peroxidation, superoxide formation and their free radical scavenging activity were evaluated. The results indicated that all of these components showed potent antioxidant activity. Punicalagin and punicalin were the most abundant components and had the strongest anti-oxidative effects of this group of tannins.
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