Recent Applications of Microbial Metabolism in Food Processing

A special issue of Metabolites (ISSN 2218-1989). This special issue belongs to the section "Food Metabolomics".

Deadline for manuscript submissions: closed (19 November 2023) | Viewed by 2020

Special Issue Editors

National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
Interests: malting and brewing; fermented foods; biotransformation of cereal by-products
Xinjiang Production & Construction Group Key Laboratory of Agricultural Products Processing in Xinjiang South, College of Food Science and Engineering, Tarim University, Alar 843300, China
Interests: metabolomics; microorganisms and metabolism of traditional fermented foods; microbial metabolism and food quality

Special Issue Information

Dear Colleagues,

In the process of food processing, the participation of microorganisms is indispensable. The application of microorganisms increases the types of edible products, facilitates the preservation of food, and provides more abundant nutrition and functions for the diet. However, due to the complex microbial fermentation process, the production process involves physical, chemical, and biological changes, which often lead to important changes in food components. Conventional research methods face difficulties in exploring the factors and mechanisms of microbial influence on food nutrition and flavor. Metabolomics technology can be used to study microbial diversity in food and screen functional microbial strains directly related to the quality and flavor of food, so as to explore the formation mechanism of food flavor and accelerate the directional screening of beneficial microorganisms in food. In addition, it can also reveal the key genes in the important metabolic networks and regulatory pathways in food microorganisms, providing the possibility for the establishment of microbial metabolic pathways and new strategies for the optimization and modification of cell performance.

In this Special Issue, researchers are encouraged to submit manuscripts of research papers and review articles on the latest developments in the field of food processing, including but not limited to the influence of microbial metabolism on food quality and safety, and the selection and breeding of probiotics in food.

Dr. Guolin Cai
Dr. Xiaopu Ren
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metabolites is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fermented foods
  • microbial metabolism
  • metabolomics
  • food quality
  • starter culture

Published Papers (1 paper)

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Research

14 pages, 1475 KiB  
Article
Optimization of the Fermentation Conditions of Huaniu Apple Cider and Quantification of Volatile Compounds Using HS-SPME-GC/MS
by Yuwen Mu, Chaozhen Zeng, Ran Qiu, Jianbin Yang, Haiyan Zhang, Juan Song, Jing Yuan, Jing Sun and Sanjiang Kang
Metabolites 2023, 13(9), 998; https://doi.org/10.3390/metabo13090998 - 8 Sep 2023
Viewed by 1204
Abstract
The fermentation process and composition of volatile compounds play a crucial role in the production of Huaniu apple cider. This study aimed to optimize the fermentation conditions of Huaniu apple cider and quantify its volatile compounds using headspace solid-phase microextraction-gas chromatography–mass spectrometry (HS-SPME-GC/MS). [...] Read more.
The fermentation process and composition of volatile compounds play a crucial role in the production of Huaniu apple cider. This study aimed to optimize the fermentation conditions of Huaniu apple cider and quantify its volatile compounds using headspace solid-phase microextraction-gas chromatography–mass spectrometry (HS-SPME-GC/MS). The optimal fermentation parameters were determined using response surface methodology (RSM). The optimal fermentation temperature was 25.48 °C, initial soluble solids were 18.90 degrees Brix, inoculation amount was 8.23%, and initial pH was 3.93. The fermentation rate was determined to be 3.0, and the predicted value from the verification test was 3.014. This finding demonstrated the excellent predictability of a RSM-optimized fermentation test for Huaniu apple cider, indicating the reliability of the process conditions. Moreover, the analysis of volatile compounds in the optimized Huaniu cider identified 72 different ingredients, including 41 esters, 16 alcohols, 6 acids, and 9 other substances. Notably, the esters exhibited high levels of ethyl acetate, ethyl octanoate, and ethyl capricate. Similarly, the alcohols demonstrated higher levels of 3-methyl-1-butanol, phenethylethanol, and 2-methyl-1-propanol, while the acids displayed increased concentrations of acetic acid, caproic acid, and caprylic acid. This study provides the essential technical parameters required for the preparation of Huaniu apple cider while also serving as a valuable reference for investigating its distinct flavor profile. Full article
(This article belongs to the Special Issue Recent Applications of Microbial Metabolism in Food Processing)
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