大豆蛋白分离物的抗消化机制在天然粉上化,具有不同的晶体类型
Zhijie Zhu1, Chengyi Sun2, Caihong Wang2
1Key Laboratory of Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei, China; Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China.
豆蛋白分离水解剂 (SPIH) 通过与粉分子相互作用,增强小麦,马和豆粉中的耐性粉含量. 这种相互作用阻碍了粉的消化,为低血糖指数的食品开发提供了潜力.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 粉的消化能力会影响血糖反应.
- 开发低血糖指数的食物对于控制糖尿病至关重要.
- 了解蛋白质和碳水化合物之间的相互作用是食品功能性的关键.
研究的目的:
- 研究大豆蛋白分离水解剂 (SPIH) 对粉物理化学性质和消化能力的影响.
- 阐明SPIH与不同类型的粉之间的相互作用机制.
- 探索SPIH在制造低血糖指数食品成分方面的潜力.
主要方法:
- 福里埃变换红外光谱 (FTIR) 用于相互作用分析.
- 模拟分子动力学以预测结合点和机制.
- 抗性粉含量分析.
- 辐射分布函数 (RDF) 和低场核磁共振 (LF-NMR) 用于水分子动态.
主要成果:
- SPIH与小麦,马和豆粉相互作用,主要是通过键.
- 添加SPIH显著增加了耐性粉含量 (39.71%至125.66%).
- SPIH与粉竞争水分子,降低了粉基质内的水流动性.
结论:
- SPIH与粉的相互作用降低了糖酶的催化效率,从而增加了抗消化能力.
- 这些发现为SPIH在修改粉性质中的作用提供了机械洞察力.
- SPIH显示出作为生产糖尿病友好型低血糖指数食品的原料的承诺.
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