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黑制剂中复杂化学反应的敏感表征,基于线上提取电喷射电离化质谱仪

Xiang Li¹, Jianghui Sun², Junhui Zhou¹

¹State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China.

|January 12, 2025

概括

这项研究引入了一种使用在线提取电喷射电离化质谱法 (oEESI-MS) 追踪食品加工过程中的化学变化的新方法. 它成功地描述了黑生产的特征,并确定了新的反应途径.

科学领域:

食品化学食品化学
分析化学分析化学
质谱测量质量谱测量

背景情况:

了解食品加工过程中的化学变化对于味道和功能至关重要.
在复杂的食物矩阵中描述反应途径是一个重大挑战.

研究的目的:

开发一种敏感的策略,用于描述食品加工过程中的化学反应.
将这种策略应用于将大转化为黑大.

主要方法:

使用了一种自制的在线提取电喷离子质谱仪 (oEESI-MS) 装置.
在没有预处理的情况下,对原始和黑样本的直接质谱表征.
对不同物质的分析,以阐明反应途径.

主要成果:

oEESI-MS使黑制备过程中关键物质变化的敏感表征成为可能.
成功确定并证明了g-L-glutamyl-S-allyl-L-cysteine到S-allyl-l-cysteine的降解途径.
使用标准物质和理论计算验证了新路径.

结论:

建立了一个基于oEESI-MS的综合战略,用于监测食品加工引起的物质变化.
这种方法为优化食品加工参数和创新技术提供了广泛的应用.
为改善食品产品开发提供了对化学转换的精确见解.

关键词:

黑大黑大的使用方法化学机制的化学机制食品加工食品加工食品加工 oEESI-MS 是一个可靠的系统.γ-L-Glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么? γ-L-glutamyl-S-allyl-L-cysteine是什么?

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