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线性右的结构特征和通过渐变性酒精沉产生的酸复合物的体外消化

Yuqing Hu¹, Chengyi Sun¹, Caihong Wang¹

¹Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, College of Food and Nutrition, Anhui Agricultural University, Hefei 230036, China.

International journal of biological macromolecules

|January 24, 2025

概括

与酸 (LA) 复合的线性右素 (LD) 可以形成抗性粉. LD-50-LA复合物显示了最高的耐性粉含量,为高效的耐性粉生产提供了潜力.

科学领域:

食品科学与技术食品科学与技术
碳水化合物化学碳水化合物化学
营养生物化学营养生物化学

背景情况:

线性右素 (LD),一种短粉素,是碳水化合物,当与脂肪酸复合时,有可能形成抗性粉.
耐性粉为健康提供了显著的益处,引发了人们对新型生产方法的兴趣.
了解LD脂肪酸复合物的结构性质对于优化耐性粉形成至关重要.

研究的目的:

研究与劳里克酸 (LA) 复合的线性右素的结构性质和体外消化.
为了确定从线性乳素和劳里克酸中生产耐性粉的最佳条件.
为了评估形成的复合物的耐性粉含量和抗消化特性.

主要方法:

使用高氨糖玉米粉 (HAMS) 处理了pullulanase和梯度乙醇沉,制备四个线性素组.
通过共同沉与劳里克酸结合线性德克斯特林.
使用X射线衍射 (XRD) 进行复杂结构的表征.
确定复合指数和体外消化分析以量化耐性粉含量.

主要成果:

成功制备了具有不同分子量 (425.88 kDa至2.01 kDa) 的线性右素.
在LD-LA复合体中观察到V型晶体结构,除了LD-70-LA.
LD-50-LA复合物表现出最高的复合指数 (41.54%) 和耐性粉含量 (52.43%).
与其他LD-LA复合物相比,LD-50-LA显示出优越的抗消化特性.

结论:

用劳里克酸复合线性德克斯特林是一种有效的生产耐性粉的策略.
由于LD-50-LA复合物具有最佳结构和高耐性粉产量,因此具有高效耐性粉生产的巨大潜力.
这项研究为开发具有增强耐性粉含量的功能性食品成分提供了一种新的方法.

关键词:

梯度酒精沉的降水情况线性右素-酸复合体线性右素-酸复合体分子重量分子重量

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