Degradation and Antioxidant Activity of Xanthan Gum

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Abstract

Abstract: Two xanthan oligosaccharides were prepared by oxidative degradation in acidity condition.The products were characterized by FT-IR,and the molecular weight of the products determined by GPC method was 7500 and 10100,respectively.The antioxidant activities of the xanthan oligosaccharides were investigated by the scavening of superoxide anion,hydrogen peroxide and reducing power.The result indicated that 10100-XG exhibited higher antioxidant activity than 7500-XG.It may be related to the the content of hydroxyl groups.

Key words: xanthan, oxidative degradation, antioxidant activity

CLC Number:

UN Tao,XIONG Xiao-ying,WEI Ying-juan,XIE Jing,XUE Bin. Degradation and Antioxidant Activity of Xanthan Gum[J]. NATURAL PRODUCT RESEARCH AND DEVELOPMENT, 2012, 23(1): 102-104.

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Degradation and Antioxidant Activity of Xanthan Gum

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