The role of C18 fatty acids in improving the digestion and retrogradation properties of highland barley starch
文献类型： 外文期刊
作者： Nie, Mengzi 1 ; Li, Jiaxin 1 ; Lin, Ran 1 ; Gong, Xue 1 ; Dang, Bin 2 ; Zhang, Wengang 2 ; Yang, Xijuan 2 ; Wang, Lili 1 ; Wang, Fengzhong 1 ; Tong, Li-Tao 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Proc, Minist Agr, Beijing 100193, Peoples R China
2.Qinghai Acad Agr & Forestry Sci, Qinghai Tibetan Plateau Key Lab Agr Prod Proc, Xining 810016, Peoples R China
关键词： Highland barely starch; C18 fatty acids; Starch -lipid complex; Complex formation; Starch digestibility; Retrogradation
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）
ISSN： 0963-9969
年卷期： 2024 年 186 卷
页码：
收录情况： SCI
摘要： In this study, five C18 fatty acids (FA) with different numbers of double bonds and configurations including stearic acid (SA), oleic acid (OA), elaidic acid (EA), linoleic acid (LA), and alpha-linolenic acid (ALA), were selected to prepare highland barely starch (HBS)-FA complexes to modulate digestibility and elaborate the underlying mechanism. The results showed that HBS-SA had the highest complex index (34.18 %), relative crystallinity (17.62 %) and single helix content (25.78 %). Furthermore, the HBS-C18 FA complexes were formed by EA (C18 FA with monounsaturated bonds) that had the highest R1047/1022 (1.0509) and lowest full width at halfmaximum (FWHM, 20.85), suggesting good short-range ordered structure. Moreover, all C18 FAs could form two kinds of V-type complexes with HBS, which can be confirmed by the results of CLSM and DSC measurements, and all of them showed significantly lower digestibility. HBS-EA possessed the highest resistant starch content (20.17 %), while HBS-SA had the highest slowly digestible starch content (26.61 %). In addition, the inhibition of HBS retrogradation by fatty acid addition was further proven, where HBS-SA gel firmness (37.80 g) and aging enthalpy value were the lowest, indicating the most effective. Overall, compounding with fatty acids, especially SA, could be used as a novel way to make functional foods based on HBS.
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