biostudies-literatureLloyd AJWelsh Government Covid Recovery Challenge Fund (part of the Welsh Government's Food and Drink Division funding)Innovate UK84https://www.ebi.ac.uk/biostudies/studies/S-EPMC12843885biostudies-literatureUnknown16(1)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.<h4>Objectives</h4>The chemical diversity of Dartmoor tea was assessed via samples collected during processing of green and black tea.<h4>Methods</h4>Leaf samples were collected during the processing of green and black tea and analysed using Flow Infusion Electrospray Ionisation Mass Spectrometry (FIE-MS).<h4>Results</h4>For green tea processing, random forest regression identified features associated with the processing steps, resulting in a total of 272 <i>m</i>/<i>z</i> explanatory features. The analysis of black tea processing (4 h and overnight oxMetabolitesChemical Attributes of UK-Grown Tea and Identifying Catechin and Metabolite Dynamics in Green and Black Tea Using Metabolomics and Machine Learning.PMC12843885N/A10068218Warren-Walker ALyons LLloyd AJWatson AWilson TBeckmann MFinch JMartinez Martin MJPfalseChemical Attributes of UK-Grown Tea and Identifying Catechin and Metabolite Dynamics in Green and Black Tea Using Metabolomics and Machine Learning.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.<h4>Objectives</h4>The chemical diversity of Dartmoor tea was assessed via samples collected during processing of green and black tea.<h4>Methods</h4>Leaf samples were collected during the processing of green and black tea and analysed using Flow Infusion Electrospray Ionisation Mass Spectrometry (FIE-MS).<h4>Results</h4>For green tea processing, random forest regression identified features associated with the processing steps, resulting in a total of 272 <i>m</i>/<i>z</i> explanatory features. The analysis of black tea processing (4 h and overnight ox2026-01-01T00:00:00Z2026 Jan2026-06-17T03:22:23.058Z2026-06-17T03:10:38.008ZS-EPMC128438854159069210.3390/metabo16010084