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The multi-scale structure and in vitro digestive kinetics of underutilized Chinese seedless breadfruit starch

文献类型： 外文期刊

作者： Li, Bo 1 ; Chen, Xiaoai 1 ; Zhang, Yutong 1 ; Xu, Fei 1 ; Tan, Lehe 1 ; Wu, Gang 1 ; Zhu, Kexue 1 ; Zhang, Yanjun 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning 571533, Hainan, Peoples R China

2.Harbin Inst Technol, Sch Med & Hlth, Herbin, Heilongjiang, Peoples R China

3.Key Lab Proc Suitabil & Qual Control Special Trop, Wanning, Peoples R China

4.Natl Trop Plant Germplasm Resource Bank Subbank Wo, Hainan 571533, Peoples R China

5.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China

关键词： Chinese seedless breadfruit starches; Multi-scale structure; Digestive kinetics; Anti-digestive mechanism

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 281 卷

页码：

收录情况： SCI

摘要： In our previous research, the significant difference of physiochemistry properties for underutilized starches was showed between Chinese seedless breadfruit species and the other species. Based on this, the multiscale structure and digestion kinetics of Chinese seedless breadfruit of Spice and Beverage Research Institute species (SBS) and Xinglong species (XBS) was further researched. The SBS exhibited higher alpha-1,6 glycosylic bond content, free sidechain groups content, double-helix content, homogeneity, molecular weight, and V-type polymorphism, and fewer amorphous content, blocklet sizes, and a smaller semi-crystalline lamella thickness than XBS. Additionally, SBS showed higher final viscosity, pasting temperature, and gelatinization enthalpy than those of XBS. Consequently, SBS display lower rate constant (0.73 h- 1) and glycemic index (65.17) than those of XBS (0.86 h- 1 and 73.95). The anti-digestibility mechanism was revealed by the structure-digestibility relationship. It was found that resistant starch of SBS and XBS were significantly higher than those of starch from American and African species. This indicated that Chinese breadfruit starch could be considered as a good source of resistant starch, regulating glycemic index. In summary, XBS and XBS could be considered as a well source of resistant starch to make foods for preventing or improving type II diabetes or hyperlipemia.

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