论文信息 - Degradation of polycaprolactone at 50 °C by a thermotolerant Aspergillus sp.

Degradation of polycaprolactone at 50 °C by a thermotolerant Aspergillus sp.

A thermotolerant Aspergillus sp. strain ST-01 degrading poly(ε-caprolactone) films was isolated. The polyester was degraded and assimilated giving 36 mg of cell from 100 mg sample and 10 mg yeast extract after 6 days at 50 °C. The degradation products were identified as succinic acid, butyric acid, valeric acid, and caproic acid. The isolate also degraded more than 90% film samples of polyhydroxybutyrate (PHB) and poly(tetramethylene succinate-co-tetramethylene adipate) at 50 °C.

[1] Y. Tokiwa,et al. Comparative Population Study of Aliphatic Polyesters-Degrading Microorganisms at 50 °C , 1998 .

[2] Y. Tokiwa,et al. Biological recycling of plastics containing ester bonds , 1992 .

[3] Y. Tokiwa,et al. Thermophilic microbial degradation of polyethylene succinate , 1997 .

[4] A. Cerutti,et al. Physical state and biodegradation behavior of starch-polycaprolactone systems , 1995 .

[5] Naoya Nishida,et al. The effect of external magnetic field on the photoinduced substitution reaction of 4-methylquinoline-2-carbonitrile in cyclohexane , 1981 .

[6] A. Gargouri,et al. Heterologous expression of lignin peroxidase of Phanerochaete chrysosporium in Aspergillus niger , 1999, Biotechnology Letters.

[7] K. Nakasaki,et al. Effects of temperature and inoculum on the degradability of poly-ε-caprolactone during composting , 1998 .

[8] S. Ueda,et al. Analysis of 5′-upstream non-coding region of FI-carboxymethyl cellulase gene from Aspergillus aculeatus , 1999, Biotechnology Letters.

[9] D. Goldberg. A Review of the Biodegradability and Utility of Poly(caprolactone) , 1995 .

[10] M. Takeda,et al. Thermostable Poly(3-hydroxybutyrate)Depolymerase of a Thermophilic Strain of Leptothrix sp.Isolated from a Hot Spring , 1998 .