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Applied and Environmental Microbiology, September 1999, p. 4220-4222, Vol. 65, No. 9
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Degradation of Polycarbonate by a Polyester-Degrading Strain, Amycolatopsis sp. Strain HT-6

Hardaning Pranamuda,1 Rungsima Chollakup,2 and Yutaka Tokiwa3,*

Agency for the Assessment and Application of Technology, Jakarta 10340, Indonesia1; Cassava and Starch Technology Research Unit, Kasetsart University, Bangkok 10900, Thailand2; and National Institute of Bioscience and Human-Technology, Tsukuba, Ibaraki 305-8566, Japan3

Received 8 March 1999/Accepted 8 June 1999

Amycolatopsis sp. strain HT-6, a poly(tetramethylene succinate) (PTMS)-degrading actinomycete, was observed to degrade poly(tetramethylene carbonate) (PTMC). In a liquid culture with 150 mg of PTMC film, 59% degradation was achieved, but with a low yield of cell growth. On the other hand, PTMS copolymerized with a small amount of PTMC, forming a copolyester carbonate (PEC) that was completely and rapidly degraded with a high yield of cell growth.


* Corresponding author. Mailing address: National Institute of Bioscience and Human-Technology, Agency of Industrial Science and Technology, 1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan. Phone: 81-298-54-6035. Fax: 81-298-56-4898. E-mail: b0609{at}aist.go.jp.


Applied and Environmental Microbiology, September 1999, p. 4220-4222, Vol. 65, No. 9
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.