EVALUATION OF SUGARCANE VARIETIES FOR SUGAR AND ALCOHOL PRODUCTION

摘要

Pilot ethanol production tests were performed to evaluate optimum chemical age and characteristics of different sugarcane varieties for sugar and alcohol production. In addition, promising varieties of the series CC (CENICANA-Colombia) were studied in order to determine recoverable yields of sucrose, fermentable total sugars, and quality characteristics between 10 and 15 months of harvesting age. The potential ethanol production increased with age of cutting and, under pilot test conditions, higher ethanol yields were observed at 12 months of age for the commercial varieties MZC 74-275, CC 84-75 and RD 75-11. The results indicated that potential alcohol production for the CC varieties fluctuated between 80 and 90 L/t of cane. Combining data on the practical yields of ethanol and those reported for analyses of sugarcane quality, there was a high correlation between pol % cane and ethanol yields in this study.