Analysis of Fingerprint Profiles of Flavonoid Compounds in Rock Tea of Different Ages.

ABSTRACT: This study established a chromatographic fingerprint analysis method for aged rock tea using ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) technology to profile its chemical components. The chromatographic separation showed excellent performance, with more than 30 chemical components of common peaks identified. Comparative analysis of fingerprint profiles from different vintage-aged teas revealed significant differences in similarity, allowing classification into three distinct categories based on similarity indices. This method facilitates the classification of aged teas and quality evaluation of traditional Chinese medicinal materials. Component analysis of aged tea demonstrated that tea extracts are rich in flavonoid compounds, both in content and diversity, s

SUBMITTER: Lang Y 

PROVIDER: S-EPMC12907508 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature