Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation

BackgroundThe fermentation characteristics of cigar tobacco leaves are closely influenced by the bacterial strains present during the process. This study aims to explore the relationship between bacterial communities and flavor, as well as the impact of key bacterial species on the overall quality o...

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Main Authors: Qi Pei, Xue Jiang, Zhengqin Li, Hong Xu, Mingyong Xie, Tao Xiong, Zhanggen Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2025.1526178/full
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author Qi Pei
Qi Pei
Qi Pei
Xue Jiang
Xue Jiang
Xue Jiang
Zhengqin Li
Zhengqin Li
Zhengqin Li
Hong Xu
Hong Xu
Hong Xu
Mingyong Xie
Mingyong Xie
Mingyong Xie
Tao Xiong
Tao Xiong
Tao Xiong
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
author_facet Qi Pei
Qi Pei
Qi Pei
Xue Jiang
Xue Jiang
Xue Jiang
Zhengqin Li
Zhengqin Li
Zhengqin Li
Hong Xu
Hong Xu
Hong Xu
Mingyong Xie
Mingyong Xie
Mingyong Xie
Tao Xiong
Tao Xiong
Tao Xiong
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
author_sort Qi Pei
collection DOAJ
description BackgroundThe fermentation characteristics of cigar tobacco leaves are closely influenced by the bacterial strains present during the process. This study aims to explore the relationship between bacterial communities and flavor, as well as the impact of key bacterial species on the overall quality of cigars.ResultThe results showed that Staphylococcus nepalensis was the dominant bacteria during the fermentation process. Correlations between bacterial communities and flavor revealed that Staphylococcus nepalensis was positively correlated with carotenoid degradation products, indicating its potential role in promoting flavor formation. Compared to the control groups, those inoculated with Staphylococcus nepalensis showed a significant increase in volatile aroma compounds, particularly megastigmatrienone, and dihydroactinidiolide. Additionally, inoculation with Staphylococcus nepalensis resulted in higher consumption rates of reducing sugars and total nitrogen content. However, nicotine levels were lower in the cigars treated with Staphylococcus nepalensis compared to the controls. The sensory evaluation further revealed that fermentation with Staphylococcus nepalensis notably enhanced the cigars’ aroma quality, reduced irritation, and improved both aftertaste and sweetness.ConclusionIn summary, the study provides valuable bacteriological resources and a theoretical foundation for optimizing industrial production processes, making it useful for enhancing the quality of cigars in large-scale manufacturing.
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institution Kabale University
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publisher Frontiers Media S.A.
record_format Article
series Frontiers in Microbiology
spelling doaj-art-46f07bc986024bdbbfb7195ed10fe6aa2025-02-11T06:59:54ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-02-011610.3389/fmicb.2025.15261781526178Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluationQi Pei0Qi Pei1Qi Pei2Xue Jiang3Xue Jiang4Xue Jiang5Zhengqin Li6Zhengqin Li7Zhengqin Li8Hong Xu9Hong Xu10Hong Xu11Mingyong Xie12Mingyong Xie13Mingyong Xie14Tao Xiong15Tao Xiong16Tao Xiong17Zhanggen Liu18Zhanggen Liu19Zhanggen Liu20Zhanggen Liu21State Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaState Key Laboratory of Food Science and Resources, Nanchang, ChinaCollege of Food Science and Technology, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation International, Nanchang University, Nanchang, ChinaInternational Institute of Food Innovation Co., Ltd., Nanchang University, Nanchang, ChinaBackgroundThe fermentation characteristics of cigar tobacco leaves are closely influenced by the bacterial strains present during the process. This study aims to explore the relationship between bacterial communities and flavor, as well as the impact of key bacterial species on the overall quality of cigars.ResultThe results showed that Staphylococcus nepalensis was the dominant bacteria during the fermentation process. Correlations between bacterial communities and flavor revealed that Staphylococcus nepalensis was positively correlated with carotenoid degradation products, indicating its potential role in promoting flavor formation. Compared to the control groups, those inoculated with Staphylococcus nepalensis showed a significant increase in volatile aroma compounds, particularly megastigmatrienone, and dihydroactinidiolide. Additionally, inoculation with Staphylococcus nepalensis resulted in higher consumption rates of reducing sugars and total nitrogen content. However, nicotine levels were lower in the cigars treated with Staphylococcus nepalensis compared to the controls. The sensory evaluation further revealed that fermentation with Staphylococcus nepalensis notably enhanced the cigars’ aroma quality, reduced irritation, and improved both aftertaste and sweetness.ConclusionIn summary, the study provides valuable bacteriological resources and a theoretical foundation for optimizing industrial production processes, making it useful for enhancing the quality of cigars in large-scale manufacturing.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1526178/fullbacterial communitycigar flavorStaphylococcus nepalensisinoculated fermentationsensory qualities
spellingShingle Qi Pei
Qi Pei
Qi Pei
Xue Jiang
Xue Jiang
Xue Jiang
Zhengqin Li
Zhengqin Li
Zhengqin Li
Hong Xu
Hong Xu
Hong Xu
Mingyong Xie
Mingyong Xie
Mingyong Xie
Tao Xiong
Tao Xiong
Tao Xiong
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
Zhanggen Liu
Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
Frontiers in Microbiology
bacterial community
cigar flavor
Staphylococcus nepalensis
inoculated fermentation
sensory qualities
title Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
title_full Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
title_fullStr Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
title_full_unstemmed Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
title_short Study on quality enhancement during cigar tobacco fermentation by Staphylococcus nepalensis: insights into microbial community, volatile substances and sensory evaluation
title_sort study on quality enhancement during cigar tobacco fermentation by staphylococcus nepalensis insights into microbial community volatile substances and sensory evaluation
topic bacterial community
cigar flavor
Staphylococcus nepalensis
inoculated fermentation
sensory qualities
url https://www.frontiersin.org/articles/10.3389/fmicb.2025.1526178/full
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