P-27 シラカンバ水解残渣から調製された炭素材料を用いた発酵阻害物質の除去(糖化・マテリアル,Poster Session)

概要

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During hydrolysis of lignocellulose, various compounds which inhibit the bioconversion of xylose to xylitol are formed or released. To remove these inhibitor, an acid hydrolyzate prepared from Japanese white birch wood was treated with four different carbonaceous sorbents. Sorbents include a dehydration production prepared from the birth wood hydrolysis residue, a steam-activated charcoal, a ZnCl_2-activated charcoal, and mangrove charcoal. Except for acetic acid, furfural and low molecular weight phenolics were successfully removed by the sorbents, whereas the concentrations of natural sugars and acetic acid stay almost constant. The steam-activated charcoal showed the best sorption capacities to furan derivatives and phenolics. When the dose of the dehydration production prepared from the birch wood hydrolysis residue is increased up to 125 g L^<-1>, the inhibition caused by furan derivatives and phenolics may be removed during the fermentation of the birch wood hydrolyzate.
一般社団法人日本エネルギー学会の論文
2014-01-08