CAJ | 학술논문

为脱除果壳类原料中的半纤维素和木质素，减少其对纤维素酶的无效吸附，提高酶解转化率。采用蒸汽爆破、NaOH、碱性H2 O2及其组合预处理方法，研究不同方法对橡实(蒙古栎种子)壳组成及酶解转化的影响。结果表明，经过2.25 MPa 蒸汽爆破预处理后，橡实壳半纤维素由26．81%降低至5.79%，半纤维素脱除率达87.28%，酶水解120 h后葡萄糖得率由10.32%提高至38.36%。橡实壳蒸汽爆破组合氢氧化钠处理后，木质素脱除率可达54.29%。而蒸汽爆破组合碱性H2 O2处理后，酶解120 h葡萄糖得率可达76.65%，是未处理橡实壳的7.4倍。
위탈제과각류원료중적반섬유소화목질소，감소기대섬유소매적무효흡부，제고매해전화솔。채용증기폭파、NaOH、감성H2 O2급기조합예처리방법，연구불동방법대상실(몽고력충자)각조성급매해전화적영향。결과표명，경과2.25 MPa 증기폭파예처리후，상실각반섬유소유26．81%강저지5.79%，반섬유소탈제솔체87.28%，매수해120 h후포도당득솔유10.32%제고지38.36%。상실각증기폭파조합경양화납처리후，목질소탈제솔가체54.29%。이증기폭파조합감성H2 O2처리후，매해120 h포도당득솔가체76.65%，시미처리상실각적7.4배。
The pretreatments of steam explosion, sodium hydroxide, alkaline peroxide and the coupling were used to remove the hemicellulose and lignin in acorn hull and increase the glucose yield. The hemicellucose in acorn hull decreased from 26. 81% to 5. 79% with a removal of 87. 28% with 2. 25 MPa steam explosion pretreatment. However, the glucose yield increased from 10. 32% to 38. 36% after enzymatic hydrolysis for 120 h. The lignin removal was 54. 29% after pretreating acorn hull by 2. 25 MPa steam explosion coupled with sodium hydroxide. The glucose yield was 76. 65% obtained from acorn hull pretreated with 2. 25MPa steam explosion and alkaline peroxide. It was 7. 4 times of that from raw acorn hull untreated.