In this study, we investigated the effect of bananas on improving of sluggish blueberry wine fermentation.
The alcoholic fermentation was carried out with yeast extract, diammonium phosphate, or 2%, 4%,
and 6% banana. The number of viable yeast cells gradually decreased during fermentation and the
population stabilized at approximately 104 cfu/ml by the end of fermentation. The average ethanol
production rate was 1.32e1.68 times faster according to the addition of banana during 20 days of
fermentation. The sugar consumption rate (Brix/day) was increased 1.30, 1.49 and 1.63-fold by 2%, 4%
and 6% of banana addition, respectively. The wines supplemented with 4% and 6% banana contained
61.7 mg/l and 60.8 mg/l of ethyl carbamate, respectively, which was higher than that with 2% banana
(54.5 mg/l). Thus, we concluded that 2% banana can be used as a nutritional supplement for yeast to
resolve stuck and sluggish blueberry wine fermentation.
The aim of the present work is to describe the effects of bananas
on improving sluggish fermentation in blueberry wine. We report
here the statistical consumption rate of glucose and fructose in
must during alcohol fermentation and investigate the kinetic aspects
related to their conversion into ethanol in order to estimate
the possible causes of stuck and sluggish fermentation in blueberry
wines.