Effects of high hydrostatic pressure on the structure and retrogradation inhibition of oat starch

文献类型： 外文期刊

第一作者： Zhang, Jing

作者： Zhang, Jing;Zhang, Meili;Zhang, Yakun;Bai, Xue;Wang, Chen;Zhang, Jing;Zhang, Jing;Zhang, Jing

作者机构：

关键词： HHP treatment; microstructure; retrogradation kinetic; water distribution

期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.612； 五年影响因子：3.575 ）

ISSN： 0950-5423

年卷期： 2022 年 57 卷 4 期

页码：

收录情况： SCI

摘要： As a non-thermal processing technology, high hydrostatic pressure (HHP) can be used for starch modification without affecting the quality and flavour constituents. The effect of HHP on starch is closely related to the treatment pressure of HHP. In this paper, we investigated the impacts of HHP treatment pressure (0, 100, 200, 300, 400, 500, 600 MPa) on the microstructure and retrogradation characteristics of oat starch, established the retrogradation kinetic model and elaborated the mechanism of HHP treatment inhibiting the retrogradation of oat starch. Results show that HHP treatment caused the microstructure of oat starch experienced crystallisation perfection (100-300 MPa), crystallisation destruction (400 MPa), crystallisation disintegration and gelatinisation (500-600 MPa). Results of oat starch retrogradation showed that, after treated at 500 MPa for 15 min, the recrystallisation rate of oat starch was reduced, the formation of nuclei at the early stage of oat starch retrogradation suppressed and its nucleation mode was changed from instantaneous to spontaneous, otherwise, the mobility of water in oat starch gel system reduced. Therefore, 500 MPa treated for 15 min can inhibits the retrogradation of oat starch. This study provides theoretical guidance for the application of HHP technology in starch modification and food processing.

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