Metagenomic Reveals the Role of Autochthonous <i>Debaryomyces hansenii</i> in the Fermentation and Flavor Formation of Dry Sausage
The effect of <i>Debaryomyces hansenii</i> SH4, a typical aroma enhancer, on flavor formation of the dry fermented sausage was investigated using gas chromatography-mass spectrometry and metagenomic sequencing. The results showed that inoculation with <i>D. hansenii</i> SH4 p...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
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| Series: | Foods |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-8158/14/1/140 |
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| Summary: | The effect of <i>Debaryomyces hansenii</i> SH4, a typical aroma enhancer, on flavor formation of the dry fermented sausage was investigated using gas chromatography-mass spectrometry and metagenomic sequencing. The results showed that inoculation with <i>D. hansenii</i> SH4 promoted volatile compound formation from carbohydrate and amino acid metabolism and accelerated ester synthesis. The enzymes, genes, and microorganisms involved in the formation pathway of volatile compounds based on microbial metabolism were predicted and constructed into a metabolic pathway network. <i>D. hansenii</i>, <i>Lactobacillus curvatus</i>, <i>Lactobacillus sakei</i>, <i>Lactobacillus plantarum</i>, <i>Leuconostoc fallax</i>, <i>Weissella minor</i>, and <i>Staphylococcus</i> and <i>Candida</i> species were found to be the predominant functional microbes for flavor development in dry sausage. This study established a new insight into the metagenome-based bioinformatic effects of <i>D. hansenii</i> SH4 as a starter culture on the microbial synthesis of key volatile compounds in dry sausage. |
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| ISSN: | 2304-8158 |