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Jiali Shi¹, Kaixiao Zeng², Jiayue Guo²

¹College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.

Carbohydrate polymers

|November 1, 2024

概括

具有特定聚合度 (DP) 的抗性粉3型 (RS3) 显示出更高的耐消化性. 在破碎粉 (DBS) 中优化DP是开发高耐性粉产品的关键.

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
营养科学营养科学

背景情况:

耐性粉 (RS) 提供健康益处,但其在加工过程中的稳定性至关重要,就像一样.
3型耐性粉 (RS3) 是通过改性粉的逆降解而形成的,其特性取决于其结构.
了解粉结构和消化能力之间的关系对于开发功能性食品成分至关重要.

研究的目的:

为了研究如何分离粉 (DBS) 的平均聚合度 (DP) 影响RS3的耐性粉 (RS) 含量和多尺度结构.
为了确定最佳的DP范围,准备RS3在后增强对氨基解酶的抗性.
根据不同的DBSDP,阐明RS3的结构-消化性关系.

主要方法:

从DBS制备RS3与受控平均DP,来自高粉豆粉 (HAPS) 和高粉玉米粉 (HAMS).
使用标准酶性消化方法后对RS含量的分析.
描述RS3的多尺度结构,包括分子顺序,结晶性,聚合结构和粒子大小分布.

主要成果:

用DP 35和DP 39的DBS制备的RS3呈现出最高的RS含量 (74.5%和75.0%),明显超过混合或其他分离的部分.
在DBS中,RS含量与DP 51-80的比例正相关,与DP 21-30的比例负相关.
具有较高DP (51-80) 的DBS促进了有组织的纳米和微尺度聚合结构,增强了RS3的抗性,而较低的DP (21-30) 导致了更容易消化的随机线圈结构.

结论:

DBS的平均DP是决定RS3的RS含量和酶可消化的关键因素.
具有较高DP (51-80) 的DBS分离物有利于在后产生具有较强抗氨解酶的RS3.
这项研究为定制RS3结构以提高可消化性和功能性质提供了有价值的见解.

关键词:

高氨糖粉含量高的粉在体外可消化性.分子重量分布的分子量分布.再结晶化再结晶化结构性表征结构性表征

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