加圧熱水流通式反応装置によるセルロースのオリゴ糖化およびその酵素分解
1998 年 77 巻 11 号 p. 1111-1115
詳細
1998 年 77 巻 11 号 p. 1111-1115
The noncatalytic oligosaccharification of microcrystaline cellulose powder in hot-compressed-water (HCW) heated to 200-300°C under 9.8MPa was investi-gated using a HCW flow type reactor. Cellulose was solubilized to water by flowing the HCW at temperatures above 220°C, and the formed water solubles were abundant in oligosacchalides. Although the formation rate of water solubles was increased with increasing temperature of HCW, the formed oligosaccharides were rapidly decomposed to hexose and others when the temperature of HCW exceeded 270°C, the softening tem-perature of the used cellulose. It showed that oligosaccharides could be produced from cellulose in high yield and high rate by flowing the HCW at around 260°C, near under the softening temperature of the cellulose. The enzymatic hydrolysis of the water solubles from cellulose treated with HCW of 260°C was carried out.
The water solubles were found to be quickly converted to hexose since water-soluble oligosaccharides can be contacted with the enzyme effectively.
