Structure and physicochemical properties of starches from six accessions of the genus Pueraria in China
文献类型： 外文期刊
作者： Li, Mengdi 1 ; Miao, Miao 1 ; Sun, Jian 3 ; Fang, Hao 1 ; Liu, Lei 1 ; Xu, Xiaoxiao 1 ; Zheng, Yanran 1 ; Lai, Qixian 1 ; Tang, Yong 1 ; Liu, Xunyue 5 ; Shu, Xiaoli 2 ; Wang, Zhi'an 3 ; Wang, Yin 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Rural Dev, Hangzhou 310021, Peoples R China
2.Zhejiang Univ, Dept Agron, Hangzhou 310058, Zhejiang, Peoples R China
3.Zhejiang Res Inst Tradit Chinese Med Co Ltd, Hangzhou 310023, Peoples R China
4.Zhejiang Acad Agr Sci, Key Lab Minist Agr Creat Agr, Hangzhou 310021, Peoples R China
5.Zhejiang Agr & Forest Univ, Coll Adv Agr Sci, Hangzhou 311300, Peoples R China
关键词： Kudzu starch; Chemical composition; Physicochemical property
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2024 年 279 卷
页码：
收录情况： SCI
摘要： Kudzu (Pueraria lobata) root contains abundant starch, but the physicochemical properties of kudzu starch are not well understood. In this study, we compared the compositions and physicochemical properties of starches isolated from six Pueraria accessions in China. Caige starch exhibited the highest purity (96.99 %) and amylose content (24.76 %), while Yege starch contained higher levels of puerarin (493.37 mu g/g) and daidzein (38.68 mu g/g). All kudzu starches were rich in resistant starch, with RS2 content ranging from 38.61 % to 46.22 % and RS3 content from 3.59 % to 6.04 %. The granules of kudzu starches varied in morphology, with Yege starch featuring larger polygonal granules. The kudzu starches presented either A-type or A-type-like C-type diffraction patterns. Caige starch had a higher IR2 value (1.28), higher gelatinization temperatures, wider temperature ranges, and greater enthalpy changes. Yege (JX) starch exhibited the highest peak viscosity but the lowest setback viscosity and pasting temperature. Fenge starch showed the highest final viscosity, with Fenge (ZJ) starch demonstrating the highest crystallinity (25.7 %) and IR1 value (0.80). These results indicated that kudzu starches derived from various Pueraria species possess unique structural and physicochemical properties, which provide significant potential for applications in food and other industrial fields.
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