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Chen Y, Jiang J, Song Y, Zang X, Wang G, Pei Y, Song Y, Qin Y, Liu Y. Yeast Diversity during Spontaneous Fermentations and Oenological Characterisation of Indigenous Saccharomyces cerevisiae for Potential as Wine Starter Cultures. Microorganisms 2022; 10:microorganisms10071455. [PMID: 35889174 PMCID: PMC9325129 DOI: 10.3390/microorganisms10071455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/26/2022] [Accepted: 07/08/2022] [Indexed: 11/17/2022] Open
Abstract
Diversity of regional yeast can be influenced by geography, grape cultivars and the use of SO2, but at single vineyard scale in China, the impact of these factors on yeast population, particularly Saccharomyces cerevisiae, is not well studied. Here, we characterised yeast species and dynamics during spontaneous fermentations with/without SO2 using eight typical grape cultivars from Yuma vineyard in Ningxia wine region of China. Results show that distribution and abundance of yeast species varied by grape varieties, fermentation stage and SO2 treatment. A number of 290 S. cerevisiae isolates were further classified into 33 genotypes by Interdelta fingerprinting. A prevailing role of grape varieties in shaping the genetic divergence of S. cerevisiae in Yuma vineyard was observed, as compared to the impacts of fermentation stage and SO2 treatment. Pre-selected S. cerevisiae strains were subjected to vinification with Cabernet Sauvignon and Chardonnay. All strains completed fermentations but the physiochemical parameters and volatile profiles of wines were strain-specific. Some indigenous S. cerevisiae yielded more desirable aroma compounds compared to the commercial strains, among which NX16 and NX18 outcompeted others, therefore having potential for use as starters. This study provides comprehensive analysis on yeast diversity at vineyard scale in Ningxia. Information on the vinification using indigenous S. cerevisiae is of great value for improving Ningxia wine regionality.
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Affiliation(s)
- Yu Chen
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
| | - Jiao Jiang
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning 750104, China
| | - Yaoyao Song
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
| | - Xiaomin Zang
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
| | - Guoping Wang
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
| | - Yingfang Pei
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
| | - Yuyang Song
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning 750104, China
- Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Xianyang 712100, China
| | - Yi Qin
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning 750104, China
- Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Xianyang 712100, China
- Correspondence: (Y.Q.); (Y.L.)
| | - Yanlin Liu
- College of Enology, Northwest A & F University, Yangling, Xianyang 712100, China; (Y.C.); (J.J.); (Y.S.); (X.Z.); (G.W.); (Y.P.); (Y.S.)
- Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning 750104, China
- Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Xianyang 712100, China
- Correspondence: (Y.Q.); (Y.L.)
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