相关实验视频
Updated: Jul 5, 2025

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
在制备过程中Shochu Koji微观结构和粉结构
Tiantian Wang1, Isao Hanashiro2,3, Yumiko Yoshizaki1,2
11 Education and Research Center for Fermentation studies, Faculty of Agriculture, Kagoshima University.
这项研究揭示了shochu koji菌酶如何分解粉,形成海绵状的微观结构. 了解这些粉分解方案和酶作用是改善shochu生产的关键.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 微生物学 微生物学
背景情况:
- 子制品的制备涉及粉的复杂的生物化学转化.
- 了解粉的酶降解及其对koji微结构的影响对于优化shochu质量至关重要.
研究的目的:
- 为了研究在shochu koji制备过程中成分,微观结构和粉分子结构的变化.
- 阐明不同α-粉酶和糖化酶在粉分解和微观结构形成中的作用.
主要方法:
- 分析不同制备阶段的shochu koji成分和微观结构.
- 使用诸如聚合度 (DP) 分析等技术,对粉分子结构变化的表征.
- 酶活性测定酸性和酸性稳定的α-氨基酶.
主要成果:
- 粉颗粒在它们的凝化和外部区域中被优先分解.
- 一个海绵状的微观结构随着粉颗粒之间的间隙增加而形成.
- 产生了两种类型的α-氨基酶:酸性不稳定 (早期/中期) 和酸性稳定 (中期/晚期).
- 降解糖,主要是葡萄糖,显著增加,表明活性粉水解.
- 观察到特定的α-葡萄糖片段,显示了氨基素长B链的降解.
结论:
- 像酸性和酸性稳定的α-氨基酶,葡萄糖氨基酶和α-葡萄糖酶这样的酶对无形粉区域起作用.
- 在koji制备过程中合作的酶作用驱动着特有的海绵状微观结构的形成.
- 这项研究提供了首份关于粉分解路径和shochu koji中的微观结构发展的详细报告.
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