Unraveling the microbiome-aroma Nexus: a metagenomic and volatile compound analysis of Yunnan cigars.

ABSTRACT:

Introduction

Understanding how microbial communities influence aroma profiles is critical to improving cigar quality. However, comparative studies examining the microbiome-aroma nexus across major cigar-producing regions remain limited.

Methods

We integrated high-throughput metagenomic sequencing with volatile organic compound (VOC) profiling to investigate microbial community structure and aroma compounds in four Yunnan cigars and two Cuban cigars.

Results

Bacillus spp. was consistently dominant across all samples, while Yunnan cigars exhibited higher microbial diversity. A total of 121 VOCs were detected, with nicotine, ylangene, δ-elemene, (R,S)-anatabine, and phenethyl alcohol identified as key aroma components. Nicotine, accounting for 29.7-55.0% of

SUBMITTER: Pan J 

PROVIDER: S-EPMC12283659 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature