Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation

This study investigates the microbial succession dynamics and volatile compound formation during pickled pepper fermentation using two pepper varieties. Between Xiaomola (XML) and Zhuzijiao (ZZJ) fermentation process, salinity reduction from 9 % to 4.12 %, pH stabilization at 3.3 after 66 days. As t...

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Main Authors: Qi Huang, Cen Li, Yongjun Wu, Shuoqiu Tong, Lincheng Zhang, Jing Jin, Qiyan Zhu, Yan Yan
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Food Chemistry: X
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590157525003980
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author Qi Huang
Cen Li
Yongjun Wu
Shuoqiu Tong
Lincheng Zhang
Jing Jin
Qiyan Zhu
Yan Yan
author_facet Qi Huang
Cen Li
Yongjun Wu
Shuoqiu Tong
Lincheng Zhang
Jing Jin
Qiyan Zhu
Yan Yan
author_sort Qi Huang
collection DOAJ
description This study investigates the microbial succession dynamics and volatile compound formation during pickled pepper fermentation using two pepper varieties. Between Xiaomola (XML) and Zhuzijiao (ZZJ) fermentation process, salinity reduction from 9 % to 4.12 %, pH stabilization at 3.3 after 66 days. As the fermentation proceeds, XML exhibited 55.70 % shared bacterial Operational Taxonomic Units, 2.4-fold higher than ZZJ, with fungal communities shifting to Starmerella and Candida, whereas ZZJ transitioned to 93.42 % Wickerhamomyces dominance. Ethyl acetate, linalool, isoamyl acetate, ethyl hexanoate, acetic acid, and 2-methyl-1-propanol were potential as markers for tracking the fermentation processes. Lactobacillus, Enterobacter, Starmerella, Debaryomyces, and Wickerhamomyces are key in regulating the flavor quality of pickled peppers. These findings propose strategies to standardize flavor profiles through microbial and volatile compound markers monitoring, offering actionable insights to optimize industrial fermentation processes and enhance product consistency in pickled pepper production using different pepper varieties.
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institution Kabale University
issn 2590-1575
language English
publishDate 2025-05-01
publisher Elsevier
record_format Article
series Food Chemistry: X
spelling doaj-art-0bcbc0f7986946718e70ea42797d08b52025-08-20T03:47:41ZengElsevierFood Chemistry: X2590-15752025-05-012810255110.1016/j.fochx.2025.102551Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentationQi Huang0Cen Li1Yongjun Wu2Shuoqiu Tong3Lincheng Zhang4Jing Jin5Qiyan Zhu6Yan Yan7Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaKey laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, China; Corresponding author at: Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China.Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaKey laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaKey laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaKey laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaKey laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou Province, China; Institute of Pepper Industry and Technology, Guizhou University, Guiyang, 550025, Guizhou Province, ChinaSchool of Liquor and Food Engineering, Guizhou University, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guiyang 550025, Guizhou Province, ChinaThis study investigates the microbial succession dynamics and volatile compound formation during pickled pepper fermentation using two pepper varieties. Between Xiaomola (XML) and Zhuzijiao (ZZJ) fermentation process, salinity reduction from 9 % to 4.12 %, pH stabilization at 3.3 after 66 days. As the fermentation proceeds, XML exhibited 55.70 % shared bacterial Operational Taxonomic Units, 2.4-fold higher than ZZJ, with fungal communities shifting to Starmerella and Candida, whereas ZZJ transitioned to 93.42 % Wickerhamomyces dominance. Ethyl acetate, linalool, isoamyl acetate, ethyl hexanoate, acetic acid, and 2-methyl-1-propanol were potential as markers for tracking the fermentation processes. Lactobacillus, Enterobacter, Starmerella, Debaryomyces, and Wickerhamomyces are key in regulating the flavor quality of pickled peppers. These findings propose strategies to standardize flavor profiles through microbial and volatile compound markers monitoring, offering actionable insights to optimize industrial fermentation processes and enhance product consistency in pickled pepper production using different pepper varieties.http://www.sciencedirect.com/science/article/pii/S2590157525003980Pickled pepperPepper varietiesMicrobial successionVolatile compoundsPhysicochemical indicesBacteria
spellingShingle Qi Huang
Cen Li
Yongjun Wu
Shuoqiu Tong
Lincheng Zhang
Jing Jin
Qiyan Zhu
Yan Yan
Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
Food Chemistry: X
Pickled pepper
Pepper varieties
Microbial succession
Volatile compounds
Physicochemical indices
Bacteria
title Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
title_full Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
title_fullStr Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
title_full_unstemmed Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
title_short Impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
title_sort impact of pepper varieties on microbial succession and correlation with physicochemical properties and volatile compounds during pickled pepper fermentation
topic Pickled pepper
Pepper varieties
Microbial succession
Volatile compounds
Physicochemical indices
Bacteria
url http://www.sciencedirect.com/science/article/pii/S2590157525003980
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