茶叶 (Camellia sinensis L.) 花中的挥发性化合物在开花期间的表征

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Xiangyang Guo^1,2,3, Lulu Wang⁴, Xiuting Huang¹

¹College of Tea and Food Science, Xinyang Normal University, Xinyang, China.

Frontiers in nutrition

|January 29, 2025

概括

茶花香味在开花期间发生变化. 半开花 (TF-S2) 由于特定的挥发性化合物,提供最好的花朵和杏仁般的气味,使它们成为食品和化品应用的理想选择.

科学领域:

农业化学农业化学
植物化学植物化学
食品化学食品化学

背景情况:

茶花是一种有价值的资源,在开花期间形成独特的风味.
关于茶花挥发性化合物及其在开花期间的芳香特征的研究是有限的.

研究的目的:

综合研究茶花在不同开花阶段的香味特征.
识别导致茶花香气的关键挥发性化合物及其对整体香气的影响.

主要方法:

气色谱-质谱 (GC-MS) 用于挥发性化合物的识别.
主要组件分析 (PCA) 用于数据解释.
气味特征影响 (ACI) 测定用于气味贡献分析.
香味分析的感官评估.

主要成果:

未开放的花 (TF-S1) 含有较高的酒精含量;完全开放的花 (TF-S3) 显示出最多的异环化合物.
半开花 (TF-S2) 的挥发物含量最高,特别是林纳醇及其氧化物,低 (Z) -3-hexen-1-ol.
在TF-S1和TF-S2中分别首次发现了乙和cosmene.
在TF-S2中,林纳是所有阶段 (ACI>27) 的关键芳香化合物;在TF-S2中,乙芬 (ACI 57.35) 贡献了甜美的气味.
PCA和感官分析证实了每个阶段的独特香味配置文件.

结论:

茶花在半开放 (TF-S2) 和完全开放 (TF-S3) 阶段具有优越的挥发性含量和理想的芳香特性 (花,粉状,杏仁状).
了解这些气味动态为优化茶花在食品和化品行业的利用提供了基础.

关键词:

气味特征影响 (ACI)香味的个人资料香味的个人资料开花阶段是花开的阶段.茶叶 (Camellia sinensis) 的花是茶叶的花.挥发性化合物挥发性化合物

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