Individual or mixing extrusion of Tartary buckwheat and adzuki bean: Effect on quality properties and starch digestibility of instant powder

文献类型： 外文期刊

第一作者： Zhang, Zhuo

作者： Zhang, Zhuo;Liang, Yongqiang;Xing, Bao;Zhu, Manli;Zhang, Lizhen;Zhang, Zhuo;Liang, Yongqiang;Li, Mengzhuo;Xing, Bao;Zhu, Manli;Ren, Guixing;Qin, Peiyou;Zou, Liang;Hu, Yichen;Ren, Guixing;Xu, Yunan

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关键词： instant powder; Tartary buckwheat; adzuki bean; extrusion; flavonoids; alpha-glucosidase inhibitory activity; in vitro starch digestibility

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：5.0； 五年影响因子：5.7 ）

ISSN： 2296-861X

年卷期： 2023 年 10 卷

页码：

收录情况： SCI

摘要： IntroductionTartary buckwheat and adzuki bean, which are classified as coarse grain, has attracted increasing attention as potential functional ingredient or food source because of their high levels of bioactive components and various health benefits.MethodsThis work investigated the effect of two different extrusion modes including individual extrusion and mixing extrusion on the phytochemical compositions, physicochemical properties and in vitro starch digestibility of instant powder which consists mainly of Tartary buckwheat and adzuki bean flour.ResultsCompared to mixing extrusion, instant powder obtained with individual extrusion retained higher levels of protein, resistant starch, polyphenols, flavonoids and lower gelatinization degree and estimated glycemic index. The a-glucosidase inhibitory activity (35.45%) of the instant powder obtained with individual extrusion was stronger than that obtained with mixing extrusion (26.58%). Lower levels of digestibility (39.65%) and slower digestion rate coefficient (0.25 min(-1)) were observed in the instant powder obtained with individual extrusion than in mixing extrusion (50.40%, 0.40 min(-1)) by logarithm-of-slope analysis. Moreover, two extrusion modes had no significant impact on the sensory quality of instant powder. Correlation analysis showed that the flavonoids were significantly correlated with physicochemical properties and starch digestibility of the instant powder.DiscussionThese findings suggest that the instant powder obtained with individual extrusion could be used as an ideal functional food resource with anti-diabetic potential.

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