组合预处理对橡实壳组成及酶解转化的影响

doi:10.3969/j.issn.0253-2417.2015.02.014

Abstract

Abstract: 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.

Key words: acorn hull, steam explosion, sodium hydroxide, alkaline peroxide, enzymatic hydrolysis

CLC Number:

TQ35

PAN Pi-ke, YU Hai-long, TANG Yong, SONG Xian-liang, JIANG Jian-xin. Effect of Pretreatment on Composition and Enzymatic Hydrolysis of Acorn Hull[J]. Chemistry and Industry of Forest Products, 2015, 35(2): 91-96.

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Effect of Pretreatment on Composition and Enzymatic Hydrolysis of Acorn Hull

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