Evidence map›Paper›PMID 42620969›Full record

ArticleFood chemistry: X2026

Stage-specific accumulation of characteristic aroma compounds in Lichuan black tea manufactured from 'Echa 10'.

Minlan Wang, Yan Yang, Xiaojie Dong, Yingke Ma, Qiuqin Zhao, Kun Huang, Ainong Yu

Abstract read
In one paragraph

Article in Food chemistry: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Minlan WangSchool of Chemistry & Environmental Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.
Yan YangSchool of Chemistry & Environmental Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.
Xiaojie DongCollege of Intelligent Systems Science and Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.
Yingke MaSchool of Chemistry & Environmental Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.
Qiuqin ZhaoSchool of Chemistry & Environmental Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.
Kun HuangLichuan Mingdao Tea Industry Co., Ltd. in Enshi Tujia and Miao Autonomous Prefecture, Lichuan, Hubei 445400, China.
Ainong YuSchool of Chemistry & Environmental Engineering, Hubei Minzu University, Enshi, Hubei 445000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study systematically investigated aroma dynamics across five consecutive processing stages (fresh leaves, withering, rolling, fermentation, drying) of Lichuan black tea (LCBT), a geographically indicated specialty tea from Enshi, China. Using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS), and multivariate statistical analysis, 81 volatile compounds were identified across all samples, with alcohols (25) and terpenoids (21) representing the two most abundant classes. Free volatiles peaked during rolling and fermentation, with stage-specific markers in fresh leaves and drying. Bound volatiles showed distinct accumulation patterns, with alcohols and aldehydes enriched at withering and rolling, ketones at rolling and drying, and acids declining continuously. Key aroma-active compounds followed stage-dependent patterns coupled with enzymatic and thermal reactions. Fermentation and drying selectively modulated volatile biosynthesis and release, ultimately shaping LCBT's signature floral and fruity aroma. The new fundamental insights into the process-aroma correlation mechanism were proposed during its manufacturing.

Indexed as

Aroma‘Echa 10’HS-SPME-GC–MSLichuan black teaManufacture

Identifiers

PMID42620969
PMCPMC13487626

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.