Study on the fermentation technology of the mixed juice drink of bitter melon juice and wort

In this paper,the mixed juice drink of bitter melon juice and wort were prepared through two step fermentation by yeast and Lactobacillus.The technical conditions of fermentation were determined by single factor experiment and response surface methodology.The results showed that the mixed juice was fermented for 12 h at28 ℃ with 4%( m L / m L) inoculation quantity by Saccharomyces cerevisiae,then inactivated and fermented for 23 h at 36 ℃ with 3%( m L / m L) inoculation quantity by the mixed Lactobacillus of Lactobacillus bulgaricus and Lactobacillus plantarum. The fermented juice taste soft,the flavor was abundant and full body,the sense evaluate were 86.50.