Survival of inoculated Saccharomyces cerevisiae strain on wine grapes during two vintages

被引:17
作者
Comitini, F [1 ]
Ciani, M [1 ]
机构
[1] Univ Politecn Marche, Dipartimento Sci Alimenti, I-60131 Ancona, Italy
关键词
damaged grapes; Saccharomyces cerevisiae; wine grape; wine yeast ecology; yeast colonization;
D O I
10.1111/j.1472-765X.2005.01837.x
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Aims: To investigate the influence of a specific ecological niche, the wine grape, on the survival and development of Saccharomyces cerevisiae. Methods and Results: A strain with a rare phenotype was sprayed onto the grape surfaces and monitored through two vintages using a specific indicative medium and analysing the internal transcribed spacer regions in the 5.8S rDNA. During the ripening process, there was a progressive colonization of the surface of the undamaged and damaged grapes by epiphytic yeasts, up to the time of harvest. The damaged wine grapes showed a much greater epiphytic yeast population. However, the inoculated S. cerevisiae strain showed a scarce persistence on both undamaged and damaged wine grapes, and the damaged grapes did not appear to improve the grape surface colonization of this strain. Conclusions: Results indicated that wine grape is not a favourable ecological niche for the development and colonization of S. cerevisiae species. Significance and Impact of Study: Results of this work are further evidence that S. cerevisiae is not specifically associated with natural environments such as damaged and undamaged wine grapes.
引用
收藏
页码:248 / 253
页数:6
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