[Enzymatic hydrolysis of steam-exploded rice straw in membrane bioreactor].
An ultrafiltration membrane bioreactor consisted of 1 - 6 enzymatic vessel was used to increase the reducing sugar concentration. The effects of enzyme loading, the number of enzymatic vessel and the dilution rate on enzymatic hydrolysis of steam-exploded rice straw were studied. The results show that the best condition is: 20FPU/g, four enzymatic vessels and 0.075/h (D). Compared with traditional batch reaction, the conversion of substrate increased significantly from 18% - 21% to 39.5%. Compared with the ultrafiltration membrane bioreactor consisted of one enzymatic vessel, the production of reducing sugar increased from 0.25 g/ g to 0.4g/g, and the final reducing sugar concentration in the product stream increased from 4.56g/L to 27.23g/L.
Yang
Sen
S
State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing.
Ding
Wen-Yong
WY
Chen
Hong-Zhang
HZ
D019149:Bioreactors; D002480:Cellulase / Q000378:metabolism*; D006358:Hot Temperature; D006868:Hydrolysis; D012275:Oryza; D018547:Plant Stems / Q000201:enzymology / Q000378:metabolism*; D013227:Steam
D013227:Steam; D002480:Cellulase