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Microwave assisted alkaline pretreatment to enhance enzymatic saccharification of catalpa sawdust.
- Source :
-
Bioresource Technology . Dec2016, Vol. 221, p26-30. 5p. - Publication Year :
- 2016
-
Abstract
- Catalpa sawdust, a promising biofuel production biomass, was pretreated by microwave-water, -NaOH, and -Ca(OH) 2 to enhance enzymatic digestibility. After 48 h enzymatic hydrolysis, microwave-Ca(OH) 2 pretreated sample showed the highest reducing sugar yield. The content of hemicellulose and lignin in catalpa sawdust decreased after microwave-alkali pretreatment. SEM observation showed that the catalpa sawdust surface with microwave-Ca(OH) 2 pretreatment suffered the most serious erosion. Crystallinity index of catalpa sawdust increased after all three kinds of pretreatment. The optimum conditions of microwave-Ca(OH) 2 pretreatment were particle size of 40 mesh, Ca(OH) 2 dosage of 2.25% (w/v), microwave power of 400 W, pretreatment time of 6 min, enzyme loading of 175 FPU/g, and hydrolysis time of 96 h, and the reducing sugar yield of microwave-Ca(OH) 2 pretreated catalpa sawdust reached 402.73 mg/g, which increased by 682.15% compared with that of raw catalpa sawdust. The catalpa sawdust with microwave-Ca(OH) 2 pretreatment is promising for biofuel production with great potential. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WOOD waste
*ALKALINITY
*CATALPA
*BIOMASS production
*HYDROLYSIS
*HEMICELLULOSE
Subjects
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 221
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 118697847
- Full Text :
- https://doi.org/10.1016/j.biortech.2016.09.033