Purification, characterization, and complement fixation activity of acidic polysaccharides from Tuber sinoaestivum

文献类型： 外文期刊

第一作者： Zhang, Bo

作者： Zhang, Bo;Zhou, Jie;He, Xiaolan;Ye, Lei;Zou, Jie;Wu, Chenguang;Peng, Weihong;Zhang, Bo;Zou, Jie;Wu, Chenguang;Zhang, Xiaoping;Li, Juan

作者机构：

关键词： Truffle; Tuber sinoaestivum; Polysaccharides; Purification; Complement fixation activity

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）

ISSN： 0023-6438

年卷期： 2017 年 85 卷

页码：

收录情况： SCI

摘要： Tuber sinoaestivum, Chinese black truffle, which is very commercially important in China, is not only well known for its delicious taste but also for its high medical value. Polysaccharides from its European sister species Tuber aestivum have been shown to have some interesting bioactivities, but very few studies have been performed on it. In this study, 2 acidic polysaccharides, T sinoaestivum polysaccharide-I (TSP-I) and T. sinoaestivum polysaccharide-II (TSP-II), were obtained from 100 degrees C water extracts of T. sinoaestivum fruiting bodies by diethylaminoethyl (DEAE) anion exchange chromatography and gel filtration. The polysaccharides presented similar monosaccharide composition, molecular size, and types of linkage. The results from methylation, Fourier transform infrared spectroscopy (FT-IR), and nuclear magnetic resonance (NMR) indicated the polysaccharides as the rhamno-mannan-like types that also contain mannuronic acid and acetyl groups. Both of TSP-I and TSP-II exhibited potential complement fixation activity. The higher molecular weight and lower amount of glucose in TSP-II may explain why it had higher complement fixation activity. Accordingly, the Chinese truffle T. sinoaestivum might serve as a potential immunomodulator. (C) 2017 Elsevier Ltd. All rights reserved.

分类号： TS2

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