Quantitative characterization of enzyme adsorption and hydrolytic performance for ultrafine grinding pretreated corn stover.
Quantitative analysis of enzyme adsorption and hydrolysis were performed for sieve-based grinding corn stover (SGCS) and ultrafine grinding corn stover (UGCS)1with different enzyme consumptions. The UGCS presented significantly higher enzyme adsorption quantity (5.15mg/g for UGCS, 1.33mg/g for SGCS), higher glucose yield (49.75% for UGCS, 28.75% for SGCS) under 20FPU/g and higher binding enzyme proportion (41.32% for UGCS, 10.64% for SGCS under 5FPU/g) which can be attributed to the more accessible microstructure properties. The relationship between enzyme adsorption and hydrolytic production was directly proportional for SGCS (GY1=21.04×AQ1+1.86 (R2=0.95)) while was exponential for UGCS (GY2=49.42×(1-e-0.57×AQ2) (R2=0.99)),2indicating that overmuch enzyme consumption was not advisable for UGCS at economical aspect.
China Agricultural University (East Campus), 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing 100083, PR China.
Haiyan
H
Zhang
China Agricultural University (East Campus), 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing 100083, PR China. Electronic address: clj1020@cau.edu.cn.
Longjian
L
Chen
China Agricultural University (East Campus), 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing 100083, PR China.
Junbao
J
Li
China Agricultural University (East Campus), 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing 100083, PR China.
Minsheng
M
Lu
China Agricultural University (East Campus), 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing 100083, PR China.
Lujia
L
Han
D000327:Adsorption; D002480:Cellulase / Q000378:metabolism*; D006868:Hydrolysis; D003313:Zea mays / Q000737:chemistry*
D002480:Cellulase
Enzyme adsorption; Hydrolysis; Lignocellulose; Quantitative analysis; Ultrafine grinding