| Title: | Screening of Yeast in Various Vineyard Soil and Study on Its Flavor Compounds from Brewing Grape Wine |
| Address: | "Agricultural and Sideline Products Processing Research Center, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China. School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 200000, China" |
| DOI: | 10.3390/molecules27020512 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "In order to screen out Saccharomyces cerevisiae suitable for table grape fermentation, and compare it with commercial Saccharomyces cerevisiae in terms of fermentation performance and aroma producing substances, differences of fermentation flavor caused by different strains were discussed. In this experiment, yeast was isolated and purified from vineyard soil, 26s rDNA identification and fermentation substrate tolerance analysis were carried out, and the causes of flavor differences of wine were analyzed from three aspects: GC-MS, PCA and sensory evaluation. The results showed that strain S1 had the highest floral aroma fraction, corresponding to its high production of ethyl octanoate and other substances, and it had the characteristics of high sugar tolerance. The fruit sensory score of S3 wine was the highest among the six wines. Through exploration and analysis, it was found that compared with commercial Saccharomyces cerevisiae, the screened strains had more advantages in fermenting table grapes. The flavor of each wine was directly related to the growth characteristics and tolerance of its strains" |
| Keywords: | Flavoring Agents/*analysis Odorants/*analysis Saccharomyces cerevisiae/growth & development/*metabolism Soil/*chemistry Vitis/*chemistry Wine/*analysis Saccharomyces cerevisiae aroma analysis fermentation growth curve determination isolation and purificat; |
| Notes: | "MedlineWang, Xuzeng Wang, Zhaogai Feng, Tao eng Switzerland 2022/01/22 Molecules. 2022 Jan 14; 27(2):512. doi: 10.3390/molecules27020512" |
