Enriched arabinoxylan in corn fiber for value-added products

被引：18
|
作者：
Wang, Bin [1 ]
Cheng, Biao [1 ]
Feng, Hao [1 ]
机构：
[1] Univ Illinois, Dept Food Sci & Human Nutr, Urbana, IL 61801 USA
来源：
BIOTECHNOLOGY LETTERS | 2008年 / 30卷 / 02期
关键词：
arabinoxylan; biofuel; corn fiber; dietary fiber; fractionation; xylooligosaccharides;
D O I：
10.1007/s10529-007-9537-9
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
A two-step process is evaluated to separate the hexose component in wet milling corn fibers from the pentose component for production of value-added products. Corn fibers were first pretreated with hot water at 121 degrees C for 1 h followed by glucoamylase hydrolysis to remove starch. The remaining solid was then treated with hot water at 140-170 degrees C followed by an enzymatic hydrolysis to further separate the hexose and pentose components. After the second pretreatment, the enzymatic digestibility of cellulose was much better than that of arabinoxylan. As a result, up to 90% arabinoxylan in corn fibers was retained in a solid form after the enzyme hydrolysis, while most of the hexose components were removed.
引用
收藏
页码：275 / 279
页数：5
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