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KMID : 0525720170220010033
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Journal of Chitin and Chitosan
2017 Volume.22 No. 1 p.33 ~ p.40
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Antioxidant Activity of Extracts from Different Parts of Sorbus commixta Hedl. with Water-Soluble Chitosan
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Seo Ye-Ju
Jung Byung-Ok
Chung Suk-Jin
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Abstract
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In this study, we examined the antioxidant activity of water-soluble chitosan (WSC) with the extracts obtained from different parts of Sorbus commixta Hedl.. This study determined DPPH and ABTS radical scavenging activity, reducing power and FRAP assay of three kinds of WSC (water-soluble chitosan)s added with extracts of Sorbus commixta Hedl.`s twig, cortex and fruit. Among the extracts from Sorbus commixta Hedl., fruit extracts showed the lowest antioxidant activity. But fruit extracts showed the most distinct synergy effect with WSC (water-soluble chitosan) at DPPH. Cortex extracts showed the highest antioxidant activity and it also showed synergy effect at DPPH and reducing power. Twig extracts showed very weak synergy effect with WSC (water-soluble chitosan) at reducing power.
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KEYWORD
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Antioxidant, Sorbus commixta Hedl, Water-soluble chitosan, DPPH, ABTS, Reducing power, FRAP
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