期刊
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷 102, 期 3, 页码 1281-1295出版社
SPRINGER
DOI: 10.1007/s00253-017-8541-9
关键词
beta-Glucosidase; Lignocellulose; Lytic polysaccharide monooxygenase; Plant biomass; Reducing agent
资金
- VLAG Graduate School [Advanced Studies in Food Technology, Agrobiotechnology, Nutrition and Health Sciences] of Wageningen University & Research, Wageningen, The Netherlands
Lytic polysaccharide monooxygenases (LPMOs) have recently been shown to significantly enhance the degradation of recalcitrant polysaccharides and are of interest for the production of biochemicals and bioethanol from plant biomass. The copper-containing LPMOs utilize electrons, provided by reducing agents, to oxidatively cleave polysaccharides. Here, we report the development of a beta-glucosidase-assisted method to quantify the release of C1-oxidized gluco-oligosaccharides from cellulose by two C1-oxidizing LPMOs from Myceliophthora thermophila C1. Based on this quantification method, we demonstrate that the catalytic performance of both MtLPMOs is strongly dependent on pH and temperature. The obtained results indicate that the catalytic performance of LPMOs depends on the interaction of multiple factors, which are affected by both pH and temperature.
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