Physicochemical properties and in vitro digestibility of highland barley starch with different extraction methods

文献类型： 外文期刊

第一作者： Nie, Mengzi

作者： Nie, Mengzi;Wang, Aixia;Xi, Huihan;Chen, Zhiying;He, Yue;Wang, Lili;Liu, Liya;Huang, Yatao;Wang, Fengzhong;Tong, Li-Tao;Nie, Mengzi;Piao, Chunhong

作者机构：

关键词： Highland barley starch; Extraction method; Double enzyme extraction; Multiscale structure of starch; Starch digestion

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：11.2； 五年影响因子：10.2 ）

ISSN： 0144-8617

年卷期： 2023 年 303 卷

页码：

收录情况： SCI

摘要： The objective of this study was to compare the structural, thermal, rheological and digestive properties of highland barley starch (HBS) by different extraction methods. Five techniques were used to extract HBS: Alkali extraction, Ultrasound extraction, double enzyme extraction (DE), three enzyme extraction (TE) and ultrasonic assisted TE (U-TE). The results indicated that the Ultrasound extracted HBS had fewer Maltese crosses, lower molecular weight (Mw), and higher content of damaged starch (P < 0.05). Meanwhile, DE extracted HBS had higher Mw, and the content of short amylopectin than that of Alkali extracted HBS (P < 0.05). Additionally, the DE extracted HBS showed the highest relative crystallinity and good short-range ordered structure, which led to the outcome of stronger thermal stability and higher values of G ' and G ''(P < 0.05). These results indicated that enzymatic extraction could better protect the resistance of HBS by protecting its physicochemical properties.

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