期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 81, 期 -, 页码 387-395出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2015.08.020
关键词
Auricularia auricula; Polysaccharide; Monosaccharide composition; Antioxidant activity; Hot water extraction
资金
- Special Fund for Agro-scientific Research in the Public Interest [201303080]
The study planned to determine proximate composition, antioxidant activity and chemical characterization in the fruit bodies of Auricularia auricula and pickled product. Two polysaccharide fractions (AAPF, AAPP) were purified from the fruiting body of A. auricula by ethanol precipitation, deproteination and macroporous resins and were subsequently lyophilized. The results showed that AAPF consisted of five monosaccharides, including glucose, rhamnose, arabinose, mannose and galactose with a molar ratio of 16.74:1.0:1.18:1.0:1.0; in contrast, AAPP was composed of four monosaccharides, namely arabinose, mannose, galactose and xylose with the molar ratio of 15.59:1.52:4.76:1.0. AAPF and AAPP were characterized by Fourier Transform Infrared spectroscopy (FTIR), which indicated peaks at approximately 3500 cm(-1) and 522.28 cm(-1) in the carbohydrate region and composed of beta-glycoside linkages at the 1200-1000 cm(-1) peaks. However, the antioxidant activity of AAPF demonstrated a significant result in scavenging free radicals except for DDPH. The in vitro test indicated that AAPF and AAPP have good antioxidant activity, demonstrating that A. auricula polysaccharide has immense potential as a functional food. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据