在水热处理后使用太赫兹光谱学量化大米中耐性粉的含量
Han Guo1, Yidi Cai2, Yukiharu Ogawa3
1Graduate School of Agriculture, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
Food research international (Ottawa, Ont.)
|May 10, 2024
概括
太赫兹 (THz) 谱学可以准确地测量水热处理后大米中耐性粉 (RS). 这种非破坏性方法提供了一个比传统的实验室分析更快的替代方法,用于量化有益的RS含量.
科学领域:
- 食品科学 食品科学 食品科学
- 频谱学是一种光谱学.
- 生物化学 生物化学
背景情况:
- 热水处理增加了大米中耐性粉 (RS),为健康带来了好处.
- 精确量化RS对于理解这些好处至关重要.
- 现有的RS测定方法往往是劳累和破坏性的.
研究的目的:
- 研究特拉赫兹 (THz) 光谱法作为一种非破坏性方法,用于量化大米中的RS.
- 在各种水热处理后,将THz光谱特征与RS含量相关联.
- 建立THz光谱作为传统RS分析的可行替代方案.
主要方法:
- 米样本经历了三种热水处理:浸泡,温和的热水处理和煮.
- 耐性粉 (RS) 含量是使用传统的体外水解方法来确定的.
- 采集了经过处理的大米样本的太赫兹 (THz) 吸收光谱.
- 使用第二导数强度分析了RS含量与特定THz光谱峰值 (9.0,10.5,12.1和13.1 THz) 之间的关系.
主要成果:
- 特定的THz光谱峰值与RS含量有很强的相关性.
- 在9.0,10.5,12.1和13.1 THz的峰值的第二导数强度准确地预测了RS含量 (R2 > 0.96).
- 在水热处理大米中,THz光谱学在量化RS方面表现出很高的准确性.
结论:
- 太赫兹 (THz) 光谱法是一种高精度和非破坏性的方法,用于定量米中的耐性粉 (RS).
- 已识别的THz光谱峰值为RS含量提供了可靠的标记.
- 这种技术为食品科学和营养研究中的RS分析提供了一个有希望的,不那么繁的替代方案.
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