Potential Applications of Glycoside Hydrolase from a Thermophilic Bacteria
May 4, 2016http://biotechnologyforbiofuels.biomedcentral.com/articles/10.1186/s13068-016-0509-y
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Thermophilic enzymes have attracted attention for their advantages in biofuel production. The team of Xiaowei Peng from the Chinese Academy of Sciences explored efficient thermophilic glycoside hydrolases that can accelerate the industrialization of biofuels and biochemicals.
A multifunctional glycoside hydrolase (GH) CoGH1A was cloned and expressed from the extremely thermophilic bacterium Caldicellulosiruptor owensensis. The enzyme exhibited excellent thermostability, retaining 100% activity after 12-h incubation at 75°C. When CoGH1A was supplemented for hydrolysis of pretreated corn stover, the glucose and xylose yields were increased, indicating that the enzyme contributed not only for glucose but also for xylose release.
CoGH1A has high capabilities in saccharification of lignocellulosic biomass. It is a promising enzyme to be used for bioconversion of carbohydrates in industrial scale. Furthermore, the study found that extremely thermophilic bacteria are potential resources for screening highly efficient glycoside hydrolases for the production of biofuels and biochemicals.
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