Estimation of phytochemicals and antioxidant activity of underutilized fruits of Andaman Islands (India).
Int J Food Sci Nutr
; 63(4): 446-52, 2012 Jun.
Article
em En
| MEDLINE
| ID: mdl-22080844
ABSTRACT
The present study aimed to determine the antioxidant activity and phytochemical contents in 10 underutilized fruits of Andaman Islands (India) namely Malpighia glabra L., Mangifera andamanica L., Morinda citrifolia L., Syzygium aqueum (Burm.f) Alst., Annona squamosa L., Averrhoa carambola L., Averrhoa bilimbi L., Dillenia indica L., Annona muricata L. and Ficus racemosa L. The antioxidant activity varied from 74.27% to 98.77%, and the methanol extract of M. glabra showed the highest antioxidant activity (98.77%; inhibitory concentration, IC(50) = 262.46 µg/ml). Methanol was found to be a better solvent than acetone and aqueous for estimating the antioxidant activity. M. glabra was found to be rich in phytochemicals viz. polyphenol (355.74 mg/100 g), anthocyanin (91.31 mg/100 g), carotenoids (109.16 mg/100 g), tannin (24.39 mg/100 g) and ascorbic acid (394.23 mg/100 g). Carbohydrate content was estimated to be highest in M. glabra (548 mg/100 g). Phenols, tannins, anthocyanins and carotenoids contents showed positive correlation (r² = 0.846, r² = 0.864, r² = 0.915 and r² = 0.806, respectively) with antioxidant activity. The information generated in present study will be useful for bioprospecting of underutilized fruits of Andaman Islands.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Extratos Vegetais
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Magnoliopsida
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Dieta
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Análise de Alimentos
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Frutas
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Antioxidantes
Limite:
Humans
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article