通过氧化合基酸和二甲形成的红色染料的生成和结构阐明
Ardemia Santarcangelo1, Fabian Weber1, Stefan Kehraus2
1Institute of Nutritional and Food Sciences, Molecular Food Technology, University of Bonn, Bonn, Germany.
Food chemistry
|June 9, 2023
概括
研究人员开发了一种新的天然红色食品染料,由植物衍生的素酸和二 (Trp) 制成. 这种新型化合物为合成染料提供了一个有希望的替代品,扩大了天然食品成分的选择.
科学领域:
- 食品化学 食品化学
- 自然产品化学 自然产品化学
- 有机合成 有机合成
背景情况:
- 由于对合成替代品的担忧,消费者对天然食品色素的需求日益增加.
- 植物来源的稳定和充满活力的天然红色染料的有限可用性.
- 植物和氨基酸是新型天然色素的潜在前体.
研究的目的:
- 合成和描述一种来自植物化合物和氨基酸的新型红色染料.
- 为了研究这种新天然色素形成的反应途径.
- 探索植物衍生化合物的潜力,作为合成食品染料的替代品.
主要方法:
- 酸的氧化,随后与托 (Trp) 发生反应.
- 使用尺寸排除色谱进行净化.
- 通过UHPLC-MS,高分辨率质谱和NMR光谱学进行表征.
- 托的同位素标记 (15N,13C) 用于详细的质谱分析.
主要成果:
- 成功合成了一种稳定的红色产品.
- 结构阐明揭示了一个复杂的分子,包括两个Trp和一个咖啡酸部分.
- 提出了一种初步的反应途径,用于形成着色剂.
- 该研究提供了从植物和氨基酸中形成红色染料的见解.
结论:
- 一种新的天然红色染料可以从酸和酸合成.
- 描述和拟议的途径有助于进一步了解植物氨基酸反应.
- 这项研究有助于开发合成食品染料的天然替代品.
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