期刊
CARBOHYDRATE POLYMERS
卷 82, 期 3, 页码 623-628出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2010.05.027
关键词
Agrobacterium; Structure; Glucan
资金
- National Science Foundation of China [30730030, 30770034]
- Program for New Century Excellent Talents in University
A salt-tolerant strain Agrobacteriurn sp. ZX09 produced a high molecular mass, water-soluble extracellular polysaccharide (EPS) composed of D-glucose. By examining periodate oxidation, H-1 NMR and C-13 NMR spectra, it was proven that the EPS consisted of the following repeating unit: -> 3)-beta-D-Glcp-(1 -> 3)-[beta-D-Glcp-(1 -> 3)-beta-D-Glcp-(1 -> 3)]3-alpha-D-Glcp-(1 -> 3)-alpha-D-Glcp-(1 -> . In vitro the EPS was indigestible by alpha-amylase, and strongly inhibited pancreatic alpha-amylase activity. Fasting mice fed on the EPS failed to increase blood glucose levels. Experimental diets containing the EPS suppressed steep increase in blood glucose concentration. These results suggest that the novel water-soluble glucan could be potentially useful for decreasing absorption of dietary carbohydrate and postprandial blood glucose level. (C) 2010 Elsevier Ltd. 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