東北大学 · 環境科学
Chika Tada教授の研究室では、反瘡微生物が分解する未分解性リグノセルロース質バイオマスの効率的利用に焦点を当て、特にセルラーゼやキシナーゼといったセルロース・キシラン分解酵素の機能とメカニズムを解明しています。また、嫌気性廃水処理においてメタン生成古細菌を高密度で保持するための担体材料の表面特性と細菌付着の関係についても、物理化学的要因を解明しています。これらの研究を通じて、バイオマス資源の効率的利用と持続可能なエネルギー回収技術の実現を目指しています。
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Treatment with rumen microorganisms improves the methane fermentation of undegradable lignocellulosic biomass; however, the role of endoglucanase in lignocellulose digestion remains unclear. This study was conducted to investigate endoglucanases contributing to cellulose degradation during treatment with rumen microorganisms, using carboxymethyl cellulose (CMC) as a substrate. The rate of CMC degradation increased for the first 24 h of treatment. Zymogram analysis revealed that endoglucanases of
Treatment with rumen fluid improves methane production from non-degradable lignocellulosic biomass during subsequent methane fermentation; however, the kinetics of xylanases during treatment with rumen fluid remain unclear. This study aimed to identify key xylanases contributing to xylan degradation and their individual activities during xylan treatment with bovine rumen microorganisms. Xylan was treated with bovine rumen fluid at 37°C for 48 h under anaerobic conditions. Total solids were degra
Various support carriers are used for high-density retention of methanogenic archaea in anaerobic wastewater treatment systems. Although the physicochemical properties of carrier materials and microorganisms influence the adhesion of methanogenic archaea, details about the underlying mechanism remain poorly characterized. We applied seven types of chemical surface modifications to carbon felts to clarify the adhesion properties of <i>Methanothermobacter thermautotrophicus</i>, a representative t
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