在草 (Fragaria × ananassa) 中使用有针对性的代谢学策略识别乙基素:从人工到自然
Xuebo Song1, Mark E Porter2, Vance M Whitaker2
1Citrus Research & Education Center, Food Science and Huamn Nutrition Department, University of Florida, Lake Alfred, Florida 33850, United States.
Food chemistry: X
|November 29, 2023
概括
科学家首次使用向代谢学方法在草中发现了关键的风味化合物乙烯利. 这一发现为自然风味的发展和理解其在水果中的生物合成开辟了道路.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 植物生物化学 植物生物化学
背景情况:
- 草风味对于育种至关重要,需要精确识别风味化合物.
- 现有的方法可能无法完全捕捉草挥发性简介的复杂性.
研究的目的:
- 开发和应用一个有针对性的代谢学策略,用于准确的草风味化合物分析.
- 在Medallion®草中识别和量化风味化合物,包括新的风味化合物.
- 为了调查草中乙基利的存在和度.
主要方法:
- 使用液液提取的有针对性的代谢组.
- 开发内部标准数据库,包括关键食品气味剂 (KFO),人工风味化合物 (AFC) 和挥发性物质.
- 气色谱-质谱/质谱 (GC-MS/MS) 用于分析.
- 使用气体染色学-质谱学 (GC-MS) 和超高性能液体染色学-质谱学/质谱学 (UPLC-MS/MS) 进行确认.
- 稳定同位素稀释分析 (SIDA) 用于精确量化.
主要成果:
- 在Medallion®草中准确识别和量化131种风味化合物.
- 在天然食品 (草) 中新发现以乙烯,此前被认为是人工风味化合物.
- 在Medallion®草样本中的乙基素量化范围从0.070 ± 0.0006μg/kg到0.1372 ± 0.0014μg/kg.
- 多种分析技术证实了乙 vaniillin 的存在和身份.
结论:
- 开发的有针对性的代谢学策略对于全面的草风味分析是有效的.
- 在草中发现乙烯尼林表明其作为天然风味化合物的潜在用途.
- 这一发现为未来研究涉及草乙基利生物合成的基因和蛋白质提供了基础.
关键词:
乙烯乙烯氨酸是一种乙烯基氨酸.乙基氨酸: (PubChem CID: 8467) 这种氨酸是什么?味道化合物 味道化合物二醇: (PubChem CID: 19309) 这是一种二醇.在GCMS/MS/MS中使用.梅西: (PubChem CID: 61325) 这是一种稳定同位素稀释分析 (SIDA)草是一种草.有针对性的新陈代谢.瓦尼林: (PubChem CID: 1183) 这是一个很好的方法.更多相关视频
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