The formation and in vitro enzymatic digestibility of starch-lipid complexes in steamed bread free from and supplemented with different fatty acids: Effect on textural and retrogradation properties during storage
文献类型： 外文期刊
第一作者： Kang, Xuemin
作者： Kang, Xuemin;Yu, Bin;Zhang, Huayong;Guo, Li;Abd El-Aty, A. M.;Cui, Bo;Kang, Xuemin;Yu, Bin;Zhang, Huayong;Guo, Li;Cui, Bo;Sui, Jie;Abd El-Aty, A. M.;Abd El-Aty, A. M.
作者机构：
关键词： Wheat starch; Starch-lipid complexes; Chinese steamed bread; Retrogradation; Crystal structure; Starch digestibility
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）
ISSN： 0141-8130
年卷期： 2021 年 166 卷
页码：
收录情况： SCI
摘要： Herein, the formation of starch-lipid complexes in steamed bread (SBr) free from and supplemented with fatty adds of varying chain lengths, induding lauric add (IA), glycerol monolaurate (GML), stearic acid (SA), and glycerol monostearate (GMS) and their effects on in vitro enzymatic digestibility were investigated. The enthalpy value of SBr samples (1.86-3A6 J/g) was significantly decreased (P < 0.05) compared to wheat starch samples (5.64-7.17 J/g) fortified with fatty acids. The relative crystallinity (165%-32.8%) of SBr corresponds to the content of starch-lipid complexes. SBr supplemented with fatty adds exhibited softer texture than lipid-free SBr stored at 4 degrees C for 0, 1. 4, and 7 days. Higher enzyme resistance was observed in SBr samples supplemented with fatty acids and the content of resistant starch (RS) was increased from 7.54% to 23.13%in SBr supplemented with LA. As demonstrated by microscopic computed tomography (mCT), the crystalline structure of SBr samples supplemented with LA and GML have a higher density than SBr fortified with SA and GMS; the findings which are in line with thermal properties and X-ray diffraction analysis. In sum, the formation of starch-lipid complexes could be considered as a new way to improve the SBr textural features during storage. (C) 2020 Elsevier B.V. All rights reserved.
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