銅フタロシアニン染料の生分解

概要

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Copper phthalocyanine (CP) is a stable blue substance widely used for dyeing. Biodegradation of CP was first examined by using the soil perfusion method. CP solution was circulated through columns containing native and sterilized field soil, respectively. A rapid decrease to almost zero in both O.D. (λ_ltmaxgt=622nm) and total copper concentration in the solution was observed within 2 weeks in the native soil columns, but no significant decrease was observed in the sterilized soil. A fungus growing on an agar medium containing 0.1% CP as a sole carbon source was isolated from the former column after 292 days of circulation. The fungus was identified as Myrothecium verrucaria according to the characteristic morphology of its phyalides. It is considered that the fungus cleaves the phthalocyanine ring structure and accumulates the released Cu^lt2+gt in the mycelia.
社団法人日本家政学会の論文
1997-05-15