The role and mechanism of electron beam irradiation in glutaric anhydride esterified proso millet starch: Multi-scale structure and physicochemical properties

被引：7
作者：
Liu, Xinyue [1 ]
Liang, Wei [1 ]
Zheng, Jiayu [1 ]
Zhao, Wenqing [1 ]
Shen, Huishan [1 ]
Ge, Xiangzhen [1 ]
Zeng, Jie [2 ]
Gao, Haiyan [2 ]
Hu, Yayun [1 ]
Li, Wenhao [1 ]
机构：
[1] Northwest A&F Univ, Coll Food Sci & Engn, Shaanxi Union Res Ctr Univ & Enterprise Grain Proc, Yangling 712100, Shaanxi, Peoples R China
[2] Henan Inst Sci & Technol, Sch Food Sci, Xinxiang 453003, Henan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 243卷
关键词：
Dual modification; Electron beam irradiation; Glutaric acid proso millet starch ester; GAMMA-IRRADIATION; RHEOLOGICAL PROPERTIES; FUNCTIONAL-PROPERTIES; ACID-HYDROLYSIS; RICE; DIGESTIBILITY;
D O I：
10.1016/j.ijbiomac.2023.125246
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
To investigate the effect of electron beam irradiation (EBI) pretreatment on the multiscale structure and phys-icochemical properties of esterified starch, this study used EBI pretreatment to prepare glutaric anhydride (GA) esterified proso millet starch. GA starch did not show the corresponding distinct thermodynamics peaks. How-ever, it had a high pasting viscosity and transparency (57.46-74.25 %). EBI pretreatment increased the degree of glutaric acid esterification (0.0284-0.0560) and changed its structure and physicochemical properties. EBI pretreatment disrupted its short-range ordering structure, reducing the crystallinity, molecular weight and pasting viscosity of glutaric acid esterified starch. Moreover, it produced more short chains and increased the transparency (84.28-93.11 %) of glutaric acid esterified starch. This study could offer a rationale for using EBI pretreatment technology to maximize the functional properties of GA modified starch and enlarge its imple-mentation in modified starch.
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页数：11
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