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Bioresour Technol. 2013 Feb;130:30-7. doi: 10.1016/j.biortech.2012.12.029. Epub 2012 Dec 14.

Three lignocellulose features that distinctively affect biomass enzymatic digestibility under NaOH and H2SO4 pretreatments in Miscanthus.

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1
National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Wuhan, China.

Abstract

In this study, total 80 typical Miscanthus accessions were examined with diverse lignocellulose features, including cellulose crystallinity (CrI), degree of polymerization (DP), and mole number (MN). Correlation analysis revealed that the crude cellulose CrI and MN, as well as crystalline cellulose DP, displayed significantly negative influence on biomass enzymatic digestibility under pretreatments with NaOH or H(2)SO(4) at three concentrations. By contrast, the comparative analysis of two Miscanthus samples with similar cellulose contents showed that crude cellulose DP and crystalline cellulose MN were positive factors on biomass saccharification, indicating cross effects among the cellulose levels and the three cellulose features. The results can provide insights into mechanism of the lignocellulose enzymatic digestion, and also suggest potential approaches for genetic engineering of bioenergy crops.

PMID:
23298647
DOI:
10.1016/j.biortech.2012.12.029
[Indexed for MEDLINE]
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