Reduced production of Ethyl Carbamate in wine by regulating the accumulation of arginine in Saccharomyces cerevisiae
Copyright © 2024. Published by Elsevier B.V..
Ethyl carbamate (EC), a multisite carcinogenic compound, is naturally produced from urea and ethanol in alcoholic beverages. In order to reduce the content of EC in wine, the accumulation of arginine in Saccharomyces cerevisiae was regulated by genetic modifying genes involved in arginine transport and synthesis pathways to reduce the production of urea. Knockout of genes encoding arginine permease (Can1p) and amino acid permease (Gap1p) on the cell membrane as well as argininosuccinate synthase (Arg1) respectively resulted in a maximum reduction of 66.88% (9.40 µg/L) in EC, while overexpressing the gene encoding amino acid transporter (Vba2) reduced EC by 52.94% (24.13 µg/L). Simultaneously overexpressing Vba2 and deleting Arg1 showed the lowest EC production with a decrease of 68% (7.72 µg/L). The yield of total higher alcohols of the mutants all decreased compared with that of the original strain. Comprehensive consideration of flavor compound contents and sensory evaluation results indicated that mutant YG21 obtained by deleting two allele coding Gap1p performed best in must fermentation of Cabernet Sauvignon with the EC content low to 9.40 μg/L and the contents of total higher alcohols and esters of 245.61 mg/L and 41.71 mg/L respectively. This study has provided an effective strategy for reducing the EC in wine.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:385 |
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| Enthalten in: |
Journal of biotechnology - 385(2024) vom: 10. Apr., Seite 65-74 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Gao, Manman [VerfasserIn] |
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| Links: |
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| Themen: |
3IN71E75Z5 |
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| Anmerkungen: |
Date Completed 02.04.2024 Date Revised 02.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jbiotec.2024.03.006 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Ethyl carbamate (EC), a multisite carcinogenic compound, is naturally produced from urea and ethanol in alcoholic beverages. In order to reduce the content of EC in wine, the accumulation of arginine in Saccharomyces cerevisiae was regulated by genetic modifying genes involved in arginine transport and synthesis pathways to reduce the production of urea. Knockout of genes encoding arginine permease (Can1p) and amino acid permease (Gap1p) on the cell membrane as well as argininosuccinate synthase (Arg1) respectively resulted in a maximum reduction of 66.88% (9.40 µg/L) in EC, while overexpressing the gene encoding amino acid transporter (Vba2) reduced EC by 52.94% (24.13 µg/L). Simultaneously overexpressing Vba2 and deleting Arg1 showed the lowest EC production with a decrease of 68% (7.72 µg/L). The yield of total higher alcohols of the mutants all decreased compared with that of the original strain. Comprehensive consideration of flavor compound contents and sensory evaluation results indicated that mutant YG21 obtained by deleting two allele coding Gap1p performed best in must fermentation of Cabernet Sauvignon with the EC content low to 9.40 μg/L and the contents of total higher alcohols and esters of 245.61 mg/L and 41.71 mg/L respectively. This study has provided an effective strategy for reducing the EC in wine | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Fan, Linlin |e verfasserin |4 aut | |
| 700 | 1 | |a Wei, Chunhui |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Shuo |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Ru |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Lijuan |e verfasserin |4 aut | |
| 700 | 1 | |a Du, Liping |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Huiling |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Weiming |e verfasserin |4 aut | |
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