Journal
MICROORGANISMS
Volume 9, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/microorganisms9050982
Keywords
phenotype microarray; yeast; cold tolerance; galactose; GAL4
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Funding
- Rural Development Administration, Republic of Korea [PJ016164]
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2019R1F1A1062633]
- National Research Foundation of Korea [2019R1F1A1062633] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The study analyzed the fermentation performance of yeast strain S. cerevisiae Cheongdo on different carbon sources using phenotype microarray, finding that it showed better growth on galactose compared to commercial wine yeast S. cerevisiae EC1118.
The cold-tolerant yeast Saccharomyces cerevisiae is industrially useful for lager fermentation, high-quality wine, and frozen dough production. S. cerevisiae Cheongdo is a recent isolate from frozen peach samples which has a good fermentation performance at low temperatures and desirable flavor profiles. Here, phenotype microarray was used to investigate industrial potentials of S. cerevisiae Cheongdo using 192 carbon sources. Compared to commercial wine yeast S. cerevisiae EC1118, Cheongdo showed significantly different growth rates on 34 substrates. The principal component analysis of the results highlighted that the better growth of Cheongdo on galactose than on EC1118 was the most significant difference between the two strains. The intact GAL4 gene and the galactose fermentation performance at a low temperatures suggested that S. cerevisiae Cheongdo is a promising host for industrial fermentation rich in galactose, such as lactose and agarose.
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