بررسي اثر دما PH و غلظت گلوكز بر توليد اتانول توسط قارچ موكور ايندويكوس

Effects Of Temperature, pH And Glucose Concentration On Bioethanol Production By Mucor indicus

Effects of different temperature, pH and glucose concentration were investigated on fermentation by Mucor indicus under aerobic condition in order to optimize the yield of ethanol. Taguchi method in three levels were used for experimental design and showed 95% confidence on the results. The analysis showed that the optimum temperature for higher ethanol production was 30oC for fermentation by the fungus. Glucose concentration (in the range of 25-100 g/L) and pH (in the range of 4.5-5.5) showed less effects on fermentation compared to temperature. Maximum ethanol yield was 0.44 g/g glucose. Glycerol was the most important byproduct of the fermentation. According to the analysis, the optimum glucose concentration for higher glycerol production was 100 g/L. Temperature and pH showed minor effects on glycerol production. Maximum glycerol yield was 89 mg/g glucose.