Amla (Phyllanthus emblica) is well-known for its rich vitamin C (ascorbic acid) and polyphenol contents. To assess its antioxidant activity, the researchers examined aqueous amla extract for its ability to inhibit g-radiation-induced lipid peroxidation (LPO) in rat liver microsomes and superoxide dismutase (SOD) damage in rat liver mitochondria.
For the LPO experiment, amla extract was added as its aqueous solution; and irradiation was carried out at different time intervals. The extent of LPO was measured in terms of thiobarbituric acid reactive substances. Based on their results it is concluded that amla is a more potent antioxidant than vitamin C.
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