Chemical Attributes of UK-Grown Tea and Identifying Catechin and Metabolite Dynamics in Green and Black Tea Using Metabolomics and Machine Learning.

ABSTRACT: The Dartmoor Estate Tea plantation in Devon, UK, benefits from a unique microclimate and diverse soil conditions, which, together with its different processing methods, contribute to the distinctive flavours and chemical profiles of its teas.

Objectives

The chemical diversity of Dartmoor tea was assessed via samples collected during processing of green and black tea.

Methods

Leaf samples were collected during the processing of green and black tea and analysed using Flow Infusion Electrospray Ionisation Mass Spectrometry (FIE-MS).

Results

For green tea processing, random forest regression identified features associated with the processing steps, resulting in a total of 272 m/z explanatory features. The analysis of black tea processing (4 h and overnight ox

SUBMITTER: Lloyd AJ 

PROVIDER: S-EPMC12843885 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature