糸状菌によるポリカプロラクトンの分解

概要

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A fungus of Penicillium sp. strain 26-1 capable of utilizing a high molecular weight (<M>^^^-n : 25,000) polycaprolactone (PCL) as the sole source of carbon was isolated from soil. When aerobically grown in a medium containing 0.1% of PCL and minerals at pH 7.5 and 30℃, the isolate almost completely degraded PCL in 12 days. Among degradation products of PCL, ε-hydroxy caproic acid was detected. PCL could be degraded enzymatically. The fungus assimilated various polyesters. In general, assimilation of aliphatic polyesters by the fungus was better the greater the number of carbon atoms between the ester bonds. Polyesters with side chains were generally less assimilated than without side chains. The fungus also assimilated unsaturarted aliphatic polyesters, but hardly assimilated alicyclic and aromatic polyesters.
社団法人日本生物工学会の論文
1976-08-25