การผลิตน้ำตาลจากการย่อยสลายโมเลกุลจากวัสดุเหลือทิ้งทางการเกษตรโดยใช้การฉายรังสีแกมมาร่วมกับกรดซัลฟูริก / ชมพูนุช หาญนันทวิวัฒน์ = Production of sugar from molecular degradation of agricultural waste by gamma-ray irradiation and sulfuric acid / Chompunoot Hannanthawiwat
Agricultural wastes are mainly composed of cellulose and hemicellulose which can be converted to sugars (xylose, glucose and arabinose) and then further produce xylitol, with a potential application in food and medical areas. The hydrolysis of sugar cane bagasse, rice straw and durian fruit hull to obtain sugars have a double consequence, the elimination of a waste and the generation of a value-added product. The objective of the study was to determine the effects of H[subscript2]SO[subscript 4] concentration, temperature and reaction time on the production of sugars. The effect of gamma irradiation with H[subscript 2]SO[subscript 4] were also investigated. The optimum H[subscript 2]SO concentration of 3% at 120 degree celsius and reaction time of 30 min were found in three samples studied. Under these conditions, 53.73%, 47.83% and 49.83% of reducing sugar were obtained, for sugar cane bagasse, durian fruit hull and rice straw, respectively. Irradiation with 100 kGy gamma ray followed by hydrolysis with 3% H[subscript 2]SO at 120 degree celsius for 30 min found that reducing sugar in sugar cane bagasse increase about 2% and durian fruit hull increase about 1%, while rice straw increase about 1% at 75 kGy. The amount of monosaccharide in three samples were also reported.
