Evidence map›Paper›PMID 40989007›Full record

ArticleFrontiers in chemistry2025

Physicochemical properties of three Yunnan cigar tobacco leaves and identification of aroma compounds in tobacco smoke.

Dan Chen, Haitao Chen, Haowei Sun, Yifei Man, Jie Long, Mengying Liu, Jieyun Cai, Dan Li, Shibin Xu, Kai Liu and 1 more

Abstract read
In one paragraph

Article in Frontiers in chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Journal of microbiology and biotechnology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Dan ChenYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Haitao ChenBeijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China.
Haowei SunYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Yifei ManBeijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China.
Jie LongYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Mengying LiuBeijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China.
Jieyun CaiYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Dan LiYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Shibin XuChuxiong Prefecture Company of Yunan Tobacco Company, Chuxiong, Yunnan, China.
Kai LiuYunnan Tobacco Quality Inspection and Supervision Station, Kunming, Yunnan, China.
Shuqi WangBeijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: This study focused on three kinds of cigar tobacco leaves (Yunxue 6, Yunxue 36, Yunxue 2) produced in Yunnan region, and through the systematic analysis of their physicochemical properties and aroma components of the smoke, the transformation pattern of aroma compounds and their origins during combustion were deeply investigated. Methods: In the experiments, gas chromatography-mass spectrometry (GC-MS) and gas chromatography-olfactometry-mass spectrometry (GC-O-MS) techniques were used to comprehensively qualitatively and quantitatively analyze the volatile constituents in the tobacco and its smoke, and combined with the conventional chemical composition detection, to reveal the physicochemical properties of Yunnan cigar tobacco and its influence mechanism on the smoke flavor. Results: Yunnan cigar tobacco exhibits distinct chemical characteristics with low sugar (0.12%-0.16%), high nitrogen (2.84%-4.56%) and alkaloid (2.32%-5.56%) contents, along with imbalanced nitrogen-alkali and potassium-chlorine ratios, affecting its combustion and sensory properties. Smoke analysis identified 144 volatile compounds, predominantly heterocyclic, aromatic and olefinic substances, with elevated pyrazines and pyridines contributing roasted, nutty and smoky notes. GC-O-MS analysis revealed 51 key aroma-active components, demonstrating greater complexity in core tobacco (YXYY) than wrapper tobacco (DHYY, PEYY). Discussion: Combustion transforms precursors (carotenoids, cedranes, phenylalanine) into characteristic aromas through pyrolysis and Maillard reactions, enhancing flavor complexity. This study first elucidates the chemical basis of Yunnan cigar's characteristic aroma, providing theoretical support for quality improvement, process optimization and product differentiation in domestic cigar production. It fills research gaps in Chinese cigar aerochemistry and establishes a foundation for precision cultivation (e.g., chlorine regulation) and targeted fermentation processes to enhance cigar quality.

Indexed as

conventional chemical componentskey aroma componentssource analysistobacco smokeYunnan cigar tobacco leaves

Identifiers

PMID40989007
PMCPMC12451450

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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.