综述 Review

小麦阿拉伯木聚糖的益生功能

  • 王清华 ,
  • 贺永惠
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  • 河南科技学院动物科学学院, 新乡 453003

收稿日期: 2013-05-02

  网络出版日期: 2013-10-27

基金资助

河南省科技攻关项目

Prebiotic Functions of Wheat Arabinoxylan

  • WANG Qinghua ,
  • HE Yonghui
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  • College of Animal Science, Henan Institute of Science and Technology, Xinxiang 453003, China

Received date: 2013-05-02

  Online published: 2013-10-27

摘要

小麦阿拉伯木聚糖(AX)是小麦饲粮中主要的抗营养因子。近年来,AX及其水解产物因具有良好的益生功能,受到了世界范围内的广泛关注。研究显示,提纯的小麦AX及其水解产物阿拉伯木聚寡糖(AXOS)可选择性地促进人和动物结肠双歧杆菌等有益菌的生长,改变肠道内容物的碳水化合物和蛋白质代谢,降低肠道中有害蛋白质分解产物(p-甲酚与苯酚)的含量,提高肠道健康指数。小麦AX/AXOS的益生功能与其分子质量大小、分子结构,尤其是与分子聚合度(avDP)以及侧链取代程度(avDAS)密切相关,其中AXOS的益生功能较AX效果更强,研究报道也更多。本文将重点介绍国内外近年来有关小麦AX及其水解产物,特别是AXOS益生功能的研究进展。

本文引用格式

王清华 , 贺永惠 . 小麦阿拉伯木聚糖的益生功能[J]. 动物营养学报, 2013 , 25(11) : 2515 -2519 . DOI: 10.3969/j.issn.1006-267x.2013.11.002

Abstract

Wheat arabinoxylan (AX) is considered as the main anti-nutritional factor in wheat basal diets. Recently, AX and its hydrolyzate have been paid more attention in the world wide, for their better prebiotic functions. Studies showed that wheat AX and its hydrolyzate—arabinoxylan oligosaccharide (AXOS) could selectively promote the beneficial intestinal microbiota growth in the colon of humans and animals, such as Bifidobacterium, change the carbohydrate and protein metabolism of intestin content, reduce the potentially toxic protein metabolites (p-cresol and phenol) contents in the intestine, and improve the intestinal health indices. The prebiotic functions of wheat AX and AXOS were closely related with their molecular weight and structure, especially the average degrees of polymerization (avDP) and average degrees of substitution (avDS). The prebiotic functions of wheat AXOS were stronger than that of AX, and more researches were reported. This review mainly focused on the recent research advances at home and abroad on prebiotic functions of wheat AX and its hydrolyzate, especially AXOS.

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