FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (21 ): 184-187.doi: 10.7506/spkx1002-6300-200921043

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Effect of Engineered Yeast (Saccharomyces cerevisiae MDC) on Fermentation and Quality of Red Grape Wine

QU Hui-ge,XIAO Bo,ZHANG Ping,CHENG Shi-wei,WANG Hui   

  1. College of Life Science, Ludong University, Yantai 264025, China
  • Received:2009-06-21 Online:2009-11-01 Published:2010-12-29
  • Contact: QU Hui-ge E-mail:qhge@163.com

Abstract:

In order to understand the effects of engineered yeast MDC on fermentation and quality of red wine, the fermentation of Caberbet Gernischet wine using this strain was simulated in a 2 L flat bottom flask. Saint Georges S101 served as control. Results showed that compared with the control, engineered yeast MDC-fermented wine revealed a lower total acid content and higher contents of dry extract and total phenols and the malic-lactic acid fermentation was accomplished ahead of time. No significant differences in contents of volatile acid, residual sugar and protein were observed between engineered yeast MDC and Saint Georges S101-fermented wines.

Key words: wine, engineered yeast (Saccharomyces cerevisiae MDC), total acid content, malic acid, lactic acid

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