EFFECT OF CHEMICAL AND MICROWAVE HEATING TREATMENT FOR REDUCING SUGAR RECOVERY

Microwave heating treatment was the one type of pretreatment process used in manufacture bioethanol because it can be applied singly or combination with other chemicals. The purpose this study to determine effect microwave on using acid and alkaline solvents. research carried out two stages, namely preparation raw materials microwave. At stage materials, bagasse dried for 2 days then crushed a size 50 mesh uniform materials. that have been prepared are subjected process. modified temperature settings addition stirrer. 5 grams powder 200 ml solution H2SO4 NaOH (0.2 M, 0.4 1 M) were put into round tool flask Pretreatment at 180°C time variables 10, 15, 20, 25, 30 minutes. Then separated from residual solid by filtration neutralized M HCl. results showed use acidic solvents, high concentrations solvents lead smaller acquisition reducing sugars liquid product phase. highest percentage sugar obtained is 0.559% when an solvent concentration 0.1 20