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Study on the antioxidant activity of extracts from the leaves of Alchornea trewioides

Jun Lu

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Abstract

Antioxidant activity of different solvents extracts fractions fractionated from 60% EtOH extracts of the leaves of Alchornea trewioides were evaluated by DPPH assay,FRAP assay,ABTS assay and scavenging the corresponding hydroxyl radical method.When compared with the positive control samples BHA,VC and Trolox,the determination results showed that antioxidant activity of EtOAc extracts fractions of the leaves of A.trewioides was the highest,its antioxidant activity was higher than VC and Trolox.Antioxidant activity of 60% ethanol extracts fractions was as much as BHA,but lower than VC and Trolox.

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Antioxidant activity of different solvents extracts fractions fractionated from 60% EtOH extracts of the leaves of Alchornea trewioides were evaluated by DPPH assay,FRAP assay,ABTS assay and scavenging the corresponding hydroxyl radical method.When compared with the positive control samples BHA,VC and Trolox,the determination results showed that antioxidant activity of EtOAc extracts fractions of the leaves of A.trewioides was the highest,its antioxidant activity was higher than VC and Trolox.Antioxidant activity of 60% ethanol extracts fractions was as much as BHA,but lower than VC and Trolox.

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Available abstract

Antioxidant activity of different solvents extracts fractions fractionated from 60% EtOH extracts of the leaves of Alchornea trewioides were evaluated by DPPH assay,FRAP assay,ABTS assay and scavenging the corresponding hydroxyl radical method.When compared with the positive control samples BHA,VC and Trolox,the determination results showed that antioxidant activity of EtOAc extracts fractions of the leaves of A.trewioides was the highest,its antioxidant activity was higher than VC and Trolox.Antioxidant activity of 60% ethanol extracts fractions was as much as BHA,but lower than VC and Trolox.

Key concepts: Trolox, Antioxidant, DPPH, ABTS, Chemistry, Ethanol, Food science, Traditional medicine

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