【摘要】 研究以2020、2022、2024年生产的美人茶为对象，采用感官审评、理化成分测定及HS-SPME-GC-MS技术，比较分析不同贮藏年份美人茶的品质差异。结果表明，不同年份美人茶样品在感官品质、主要理化成分及香气成分方面差异显著。随着贮藏年份增加，感官品质方面，茶叶香气由蜜香逐渐转为陈香，汤色加深，滋味鲜爽度下降并趋于醇厚；主要理化成分方面，游离氨基酸含量逐渐降低，茶黄素含量逐渐增加，茶多酚、茶红素和茶褐素含量呈先升后降趋势，而咖啡碱含量差异不显著且整体较稳定，水浸出物含量呈上升趋势。研究结果可为美人茶品质评价及科学贮藏提供参考依据。更多还原

【Abstract】 This study investigated beauty tea produced in 2020, 2022, and 2024. Sensory evaluation, biochemical component determination, and HS-SPME-GC-MS were employed to comparatively analyze differences in chemical quality among samples of different storage years. The results show that significant differences existed among the samples in sensory quality, major quality-related components, and aroma composition. With increasing storage years, the aroma gradually shifted from honey-like to aged notes, the liquor color deepened, and the taste became less brisk and progressively mellower. Regarding major quality components, the contents of free amino acids decreased gradually, whereas theaflavins increased. The contents of tea polyphenols, thearubigins, and theabrownins increased first and then decreased, while caffeine showed no significant differences and remained relatively stable.In addition, the water extract content exhibited an increasing trend with storage time. These findings provided a reference for quality evaluation and scientific storage of beauty tea.更多还原