Characterization of aroma profile and microbial community of cigar tobacco leaves from different aging periods and varieties and their correlations analysis
文献类型: 外文期刊
作者: Liu, Jian;He, Zelin;Lin, Qing;Lyu, Can;Zhao, Junwei;Li, Xiang;Wang, Xueying;Xiao, Yansong;Ning, Yang
作者机构:
关键词: Cigar;Microbial community;Aroma;Aging period;Variety
期刊名称: BIORESOURCES AND BIOPROCESSING
ISSN:
年卷期: 2025 年 12 卷 1 期
页码:
收录情况: SCIE(2025版) ; ; EI(2025版) ; ; CSCD(2025-2026年度)
摘要: In this study, the CTLs from Hainan, China, were used, the aroma profiles of CTLs from five years (2017-2021) and three varieties [Hainan2 (HN2), Jianheng3 (JH3), and Guyin4 (GY4)] were analyzed, and the microbial communities of these CTLs and the relation with aroma constituents were explored. Results revealed the contents of total aroma constituents (3.55-7.67 mg/kg), esters (47.4-824 mu g/kg), alcohols (123-561 mu g/kg), aldehydes (51.4-97.1 mu g/kg), and nitrogen heterocycles (1.86-4.25 mg/kg), firstly increased and subsequently declined with the increase of years, whereas ketones (1.07-3.56 mg/kg) exhibited an inverse trend. Among the different varieties, the highest aldehyde (142 mu g/kg) content was observed in JH3, while the highest total aroma constituents, acids, ketones, and nitrogen heterocycles were found in GY4, reaching 10.5, 0.604, 1.86, 6.43 mg/kg, respectively. Furthermore, the bacterial communities of CTLs from different years exhibited discernible succession with increasing years. The abundances of Staphylococcus (3.03-47.5%) and Sphingomonas (1.18-10.2%) first increased and then decreased, whereas Pseudomonas (1.63-11.5%), Ralstonia (0.669-20.2%), and Pantoea (6.07-10.5%) exhibited the opposite trend, and Aspergillus and Cladosporium with total abundances of 90.2-94.2% were predominant in all years. The dominant bacteria and fungi of CTLs from different varieties were identified as Staphylococcus (15.0-81.1%) and Aspergillus (45.6-85.0%), respectively. However, the dominant microbial abundances in JH3 were significantly lower than those in HN2 and GY4, while other microorganism abundances were increased. Partial least square-regression analysis demonstrated that Paracoccus, Staphylococcus, Aerococcus, Pantoea, Methylobacterium-Methylorubrum, and Bacillus of CTLs from different years were associated with aroma constituents.
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