Cycloamylose production from amylomaize by isoamylase and Thermus aquaticus 4-α-glucanotransferase

被引：24
作者：
Xu, Yan [1 ,2 ,3 ]
Zhou, Xing [1 ,2 ,3 ]
Bai, Yuxiang [4 ]
Wang, Jinpeng [1 ,2 ]
Wu, Chunsen [1 ,2 ]
Xu, Xueming [1 ,2 ,3 ]
Jin, Zhengyu [1 ,2 ,3 ]
机构：
[1] Jiangnan Univ, State Key Lab Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
[2] Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Jiangsu, Peoples R China
[3] Jiangnan Univ, Synerget Innovat Ctr Food Safety & Nutr, Wuxi 214122, Peoples R China
[4] Univ Groningen, Groningen Biomol Sci & Biotechnol Inst GBB, Dept Microbiol, NL-9747 AG Groningen, Netherlands
来源：
CARBOHYDRATE POLYMERS | 2014年 / 102卷
基金：
中国国家自然科学基金;
关键词：
Thermus aquaticus 4-alpha-glucanotransferase; Isoamylase; Cycloamylose; Amylomaize; POTATO D-ENZYME; MASS-SPECTROMETRY; CYCLIC GLUCANS; AMYLOSE; AMYLOMALTASE; BIOAVAILABILITY; CYCLODEXTRINS; AMYLOSUCRASE; AMYLOPECTIN; DELIVERY;
D O I：
10.1016/j.carbpol.2013.10.065
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Amylomaize (AMM) was utilized as the substrate for cycloamylose (CA) production in this study. After debranching,AMM was incubated with 10 U/g of Thermus aquaticus 4-alpha-glucanotransferase (TA 4 alpha GTase) for various reaction times in water or in DMSO reaction system. The maximum conversion yield of CA was greatly improved from 24.55% to 45.58% and from 27.40% to 47.25% after debranching in the water and DMSO reaction systems, respectively. Compared with the method that produced CA from commercial potato amylose, this method produced CA from a natural amylopectin containing starch with enhanced conversion yield after debranching. Meanwhile, we found that the minimum degree of polymerization (DP) of CA from TA 4aGTase treatment was 5, regardless of the reaction conditions. These results were different from those reported in the literature that stated the minimum DP of CA produced with a TA 4aGTase treatment was 22 regardless of the reaction conditions. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：66 / 73
页数：8
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