酸盐/花粉素和大米品种之间的复杂相互作用,以确定复制的米珠的粉消化能力
1Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin 999077, Hong Kong, China.
概括
用非粉多糖 (NSP) 包装大米粉,如酸盐或点氨酸,会影响粉的消化性和质地. 选择NSP和米品种显著影响这些特性,为量身定制的米类似品提供了潜力.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 是一种材料科学.
- 生物化学 生物化学
背景情况:
- 非粉多糖 (NSP) 封装的米粉代表了一种新的米类类似物.
- 不同的NSP和大米品种对粉消化的影响尚不清楚.
研究的目的:
- 为了研究酸盐或点封装对三种不同米品种粉消化能力和质感的影响.
- 探索消化过程中的多层次结构变化.
主要方法:
- 三种大米品种的封装,使用阿尔金酸盐和果.
- 评估酶结合速率常数和粉最大消化百分比.
- 由此产生的水珠的纹理分析.
- 在消化过程中的微观结构分析.
主要成果:
- 在不同的米粒中观察到粉消化能力的显著变化 (速度常数高达1.9倍,最大消化率高达10%).
- 南京大米与酸盐的消化能力降低,而潘金和苏北大米则表现出相反的效果.
- 酸盐封装使得质地比更硬,而米种也影响了质地.
结论:
- 选择NSP类型和米品种对于开发具有控制粉消化能力的米类型至关重要.
- 米烯胺结构和NSP之间的特定相互作用影响了消化能力.
- 素封装大米中的孔隙形成可能导致粉重新结合和降低消化能力.
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