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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Microbiotechnology
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1492042

Isolation and evaluation of Cyberlindnera fabianii strains to improve cigar tobacco leaves fermentation effect

Provisionally accepted
Sida GUO Sida GUO Yasen Li Yasen Li Zhen Yang Zhen Yang Qianying Zhang Qianying Zhang Pinhe Li Pinhe Li Zhongrong Jiang Zhongrong Jiang Jiabao Zhang Jiabao Zhang Yu Cao Yu Cao Zhengcheng ZHANG Zhengcheng ZHANG Dongliang Li Dongliang Li *
  • China Tobacco Sichuan Industrial Co.,Ltd., Chengdu, China

The final, formatted version of the article will be published soon.

    Fermentation is a crucial process in cigar manufacturing. Exogenous addition of functional microorganisms for fortified fermentation can further improve cigar tobacco leaves fermentation quality. In this study, five Cyberlindnera fabianii strains were isolated from cigar tobacco leaves. Their fermentation effects were assessed by analyzing flavor components and major chemical compositions. Among these five isolates, four C. fabianii strains demonstrated the ability to enhance the overall flavor profile, particularly by increasing esters and chlorophyll degradation products. Additionally, several strains, particularly F3 and F4, also reduced total alkaloid and nitrogen content. Among these, C. fabianii strain F4 exhibited the most significant improvements. Sensory evaluation revealed that strain F4 could enhance mellowness, richness and sweetness while reducing irritation and off-flavors in fermented cigar tobacco leaves. Our findings indicate that C. fabianii strain F4 can significantly improve the overall quality of cigar tobacco leaves through fermentation. This study provides a promising microbial fermentation agent for potential application in the cigar industry.

    Keywords: cigar fermentation, Cyberlindnera fabianii, Isolation, Flavor components, Sensory evaluation

    Received: 12 Sep 2024; Accepted: 29 Nov 2024.

    Copyright: © 2024 GUO, Li, Yang, Zhang, Li, Jiang, Zhang, Cao, ZHANG and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Dongliang Li, China Tobacco Sichuan Industrial Co.,Ltd., Chengdu, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.