Logo Image
News|Articles|April 6, 2026

Multimodal GC-IMS and GC-O-MS Reveal Regional Volatile Signatures in Cigar Tobacco Leaves

Author(s)John Chasse
Listen
0:00 / 0:00

Key Takeaways

  • Multiplatform analytics (GC-IMS/PCA plus HS-SPME/SBSE GC-O-MS) enabled higher-confidence discrimination of region-dependent volatile fingerprints and sensory-relevant compounds in cigar tobacco leaves.
  • Odor activity value ranking narrowed 120 candidates to 15 aroma-active compounds most likely to dominate perceived “cold aroma” in unburned leaf matrices.
SHOW MORE

Researchers combined gas chromatography-ion mobility spectrometry (GC-IMS), headspace solid-phase microextraction (HS-SPME), stir bar sorptive extraction (SBSE), and gas chromatography-olfactometry-mass spectrometry (GC-O-MS) to characterize volatile compounds in cigar tobacco leaves from different regions. Fifteen key aroma-active compounds were identified, defining sensory profiles such as fruity, citrus, and chocolate notes, supporting improved raw material selection and future predictive models for cigar aroma development.

Researchers employed gas chromatography-ion mobility spectrometry (GC-IMS) combined with principal component analysis (PCA) to reveal differences in volatile components in cigar tobacco leaves. In addition, headspace solid-phase microextraction (HS-SPME) and stir bar sorptive extraction (SBSE) were used to extract volatile components from cigar tobacco leaves, which were then identified using gas chromatography-olfactometry-mass spectrometry (GC-O-MS). A paper based on this work was published in Frontiers in Plant Science.1

Cigars are a unique tobacco product made entirely from rolled tobacco leaves (unlike traditional cigarettes, which have other additives mixed with the tobacco) which are characterized by their robust strength, rich tobacco flavor, while containing relatively lower levels of tar and nicotine.2,3 The global cigar market has seen a steady rise in sales and is now valued at approximately $20 billion.4-6

Although the researchers state that existing research has revealed the contributions of certain volatile compounds to cigar aroma, a comprehensive understanding of the dominant aromatic profiles in cigar tobacco leaves remains incomplete, due to a lack of systematic studies integrating multiple analytical techniques to differentiate the characteristic aromas of cigars from those of traditional cigarettes. Therefore, they embarked on this study to evaluate volatile compounds in cigar tobacco leaves from different regions, clarifying variations and differences in their volatile compositions.1

The researchers report that, based on odor activity values, 15 out of 120 compounds were classified as aromatic active compounds. GC-IMS and GC-MS experiments indicated that "fatty" "grass" "fruity" "ammonia" "citrus" "chocolate odor" and "mint and camphor" were identified as characteristic aromatic attributes of cigar tobacco leaves. These characteristic aromas were associated with compounds such as ammonia, 3-methylbutanal, pentanal, 2-butanone, D-limonene, nonanal, 6-methyl-5-heptadiene-2-one, geraniol, and neophytadiene.1

“This study,” write the authors of the paper,1 “provides insights into improving cigar quality and promoting the development of new products with unique aromatic characteristics.”

The researchers pointed out that the data only revealed the “cold aroma prototype” of unburned tobacco leaves and some thermal aroma precursors, without addressing subsequent transformations such as combustion, aging, and mouthfeel. “While this cold aroma profile cannot directly predict smoking flavor,” the authors write,1 “it serves as a targeted indicator for raw material selection and fermentation/aging process optimization, indirectly and directionally shaping the consumer-end aroma profile. Future work will integrate time-resolved pyrolysis, smoke analysis, and sensory omics to construct a comprehensive ‘cold aroma-hot aroma-aftertaste’ prediction model, enabling precise design and iterative enhancement of cigar aroma quality.”

Read More on Similar Topics

Tracing Cigar Aroma Evolution from Leaf to Smoke Using GC-O-MS
Chromatography-Based Metabolomics Reveals Dynamic Aroma Changes During Cigar Aging

References

  1. Wu, X.; Liu, S.; Guo, Z. et al. A Comprehensive Map of Key Aroma-Active Compounds in Cigar Tobacco via GC-IMS and GC-O-MS. Front Plant Sci. 2026, 17, 1749662. DOI: 10.3389/fpls.2026.1749662
  2. Shao, Y.; Fu, L. Problems and Countermeasures in the Development of Hainan Cigar Tobacco Leaves; in 2015 Annual Collection of Outstanding Papers of the Chinese Tobacco Society; Chinese Tobacco Society, 2015.
  3. Wang, H,; Zuo, X.; Sun, F. Research Progress on Cigar Wrapper Leaves. Chin. Tobacco Sci. 2009, 30, 71–76.
  4. Qin, Y.; Li, A.; Fan, J.et al. Production Techniques of High-Quality Cigar Wrappers. Acta Agriculturae Jiangxi 2012, 24, 101–103.
  5. Kowitt, S. D.; Finan, L. J.; Lipperman-Kreda, S. Objective and Perceived Measures of Tobacco Marketing are Uniquely Associated with Cigar Use. Tob Control. 2023, 32 (4), 428-434. DOI: 10.1136/tobaccocontrol-2021-056601
  6. Wu, Y.; Huang, D.; Kong, G. et al. Geographical Origin Determination of Cigar at Different Spatial Scales Based on C and N Metabolites and Mineral Elements Combined with Chemometric Analysis. Biol Trace Elem Res. 2023, 201 (8), 4191-4201. DOI: 10.1007/s12011-022-03499-7

Related Content