Contents of constituents and antioxidant activity of seed and pulp extracts of Annona coriacea and Annona sylvatica

Brazilian Journal of Biology

Rsr. Benites¹  Asn. Formagio¹  Ejs. Argandoña¹  Crf. Volobuff¹  Lnf. Trevizan¹  Mc. Vieira¹  Ms. Silva¹ 

关键词: Annona;    antioxidant activity;    phytochemistry;    Annona;    atividade antioxidante;    fitoquímica;   

DOI  :  10.1590/1519-6984.21313

来源: SciELO

【 摘 要 】

AbstractThe antioxidant potential of fruit pulp and seeds of extracts of the Annona coriacea, and A. sylvatica(Annonaceae) were investigated, as well contents total phenolics, flavonoids, condensed tannins and ascorbic acid. Was used to determine the antioxidant activity the 1,1-diphenyl-1-picrylhydrazyl free radical (DPPH), β-carotene bleaching and ABTS radical cation method. The total phenol, total flavonoid, condensed tannin, and ascorbic acid contents were measured spectrophotometrically. In this study, the pulp and seeds of the fruits were extracted using methanol/water (8:2) for maceration. The seed extracts of A. coriacea demonstrated a moderate antioxidant effect with free radical scavenging activity of 31.53%, by the DPPH test, 51.59% by the β-carotene bleaching test and 159.50 µM trolx/g of extract in the ABTS assay. We found that the hydromethanolic seed extract of A. coriacea had high total phenol (147.08 ± 4.20 mg of GAE/g of extract) and flavonoid (131.18 ± 2.31 mg of QE/g of extract) content. This indicated that the antioxidant activity of the extracts was related to the contents of these constituents.

【 授权许可】

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