Electron beam irradiation application for improving the multiscale structure and enhancing physicochemical and digestive properties of acetylated naked barley
Ge X. Hu Y. Shen H. Liang W. Sun Z. Zhang X. Ospankulova G. Muratkhan M. Kh K.Z. Li W.
15 March 2023Elsevier Ltd
Food Chemistry
2023#404
The study used electron beam (EB) irradiation pretreatment to prepare acetylated (AC) naked barley starch. EB pretreatment enhanced the degree of substitution in acetylation from 0.027 to 0.109 %. The starch granules treated with EB and AC had a rough surface but maintained integrity. EB depolymerized the starch structure, providing opportunities for molecular rearrangement, thereby increasing the efficiency in the subsequent acetylation process. Therefore, EB pretreatment decreased AC starch amylose content (27.82 to 21.61 %), amylopectin molecular weight, relative crystallinity (31.04 to 26.23 %), short-range order, and increased amylose molecular weight comparing EB or AC-treated alone. These structural changes improve the properties of starch; thus, EB pretreatment reduced the thermal transition temperature, gelatinization enthalpy, pasting parameters, rapidly-digestible starch content (67.09–51.74 %), solubility, and improved content of slowly-digestible starch (23.82–36.65 %) and resistant starch (9.09–11.62 %). EB pretreatment can enhance efficiency and improve the structure and performance of acetylated modified starch.
Acetylation modification , Digestive properties , Electron beam irradiation , Molecular structure , Naked barley starch , Physicochemical properties
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Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Shaanxi, Yangling, 712100, China
College of Food Technology, Technical Faculty, Saken Seifullin Kazakh Agrotechnical University, Zhenis Avenue 62, Astana, 010000, Kazakhstan
College of Food Technology, Shakarim State University of Semey, Glinka 20A, Semey, 071412, Kazakhstan
Engineering Research Center of Grain and Oil Functionalized Processing in Universities of Shaanxi Province
College of Food Technology
College of Food Technology
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