Affiliation:
1. SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
Abstract
Ethyl carbamate (EC), a 2A carcinogen produced during the fermentation of foods and beverages, primarily occurs in distilled spirits. Currently, most studies focus on strategies for EC mitigation. In the present research, we aimed to screen strains that can degrade EC directly. Here, we report two Candida ethanolica strains (J1 and J116), isolated from fermented grains, which can reduce EC concentrations directly. These two yeasts were grown using EC as the sole carbon source, and they grew well on different carbon sources. Notably, after immobilization with chitosan, the two strains degraded EC in Chinese Baijiu by 42.27% and 27.91% in 24 h (from 253.03 ± 9.89 to 146.07 ± 1.67 and 182.42 ± 5.05 μg/L, respectively), which was better than the performance of the non-immobilized strains. Furthermore, the volatile organic compound content, investigated using gas chromatography-mass spectrometry, did not affect the main flavor substances in Chinese Baijiu. Thus, the yeasts J1 and J116 may be potentially used for the treatment and commercialization of Chinese Baijiu.
Funder
National Natural Science Foundation of China
Liquor Making Biological Technology and Application of the key laboratory of the Sichuan Province
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science
Reference46 articles.
1. Determination of Ethyl Carbamate in Some Fermented Korean Foods and Beverages;Koh;Food Addit. Contam.,2000
2. Metabolism of Carcinogenic Urethane to Nitric Oxide Is Involved in Oxidative DNA Damage;Sakano;Free Radic. Biol. Med.,2002
3. (2023, July 14). World Health Organization IARC Monographs on Evaluation of Carcinogenic Risk to Humans. Available online: https://web.archive.org/web/20170606065450/http://monographs.iarc.fr/ENG/Classification/index.php.
4. Joint Fao/Who Expert Committee on Food Additives, and International Program on Chemical Safety (2006). Safety Evaluation of Certain Contaminants in Food, Food and Agriculture Organization.
5. A Comprehensive Review of Spirit Drink Safety Standards and Regulations from an International Perspective;Pang;J. Food Prot.,2017
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