A poly(vinyl alcohol) (PVA)-degrading mixed culture that consisted of sereval microorganisms was obtained from activated sludge from a textile factory. From the culture, a component bacterial strain, BX1, that degraded PVA was isolated, and was identified as Bacillus megaterium. This strain could degrade PVA only in the cocultivation with a bacterial strain, PN19, that was isolated from the same mixed culture.
Geotrichum sp. WF9101 isolated from a poly (vinyl alcohol)-degrading mixed culture could utilized vinyl alcohol oligomers, but not the polymers. This strain is proposed to have utilized degradation products of poly (vinyl alcohol) in the mixed culture. Biodegradation of vinyl alcohol oligomers by this strain was discussed using 2,4-pentanediol as a model substrate.
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