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E. Kitakuni, K. Yoshikawa, K. Nakano, J. Sasuga, M. Nobiki, H. Naoi, Y. Yokota, R. Ishioka and Y. Yakabe, “Biodegradation of Poly(Tetramethylene Succinate-CoTetramethylene Adipate) and Poly(Tetramethylene Succinate) through Water-Soluble Products,” Environmental Toxicology and Chemistry, Vol. 20, No. 5, 2001, pp. 941-946.

has been cited by the following article:

• TITLE: Influencing Factors and Process on in Situ Degradation of Poly(Butylene Succinate) Film by Strain Bionectria ochroleuca BFM-X1 in Soil

  AUTHORS: Xueli Mei, Chengming Tian, Qian Dong, Yingmei Liang

  KEYWORDS: Poly(Butylene Succinate) (PBS); In Situ Biodegradation; Strain B. ochroleuca BFM-X1; Temperature; Humidity

  JOURNAL NAME: Journal of Environmental Protection, Vol.3 No.6, June 21, 2012

  ABSTRACT: This is the first report on the PBS film degraded by any Bionectria ochroleuca fungal strain. The fungal strain BFM-X1 was isolated from an air environment on a vegetable field and was capable of degrading poly(butylene succinate) (PBS). The taxonomic identity of the strain BFM-X1 was confirmed to be Bionectria ochroleuca (showing a 99% similarity to B. ochroleuca in a BLAST search) through an ITS rRNA analysis. The bio-degradation of the PBS film by strain BFM-X1 was studied. Approximately 97.9% of the PBS film was degraded after strain BFM-X1 was inoculated at 28?C for 14 days. The degradation efficiency of BFM-X1 against PBS film under different soil environmental conditions was characterized. The results indicated that 62.78% of the PBS film loss was recorded in a 30-d experimental run in a sterile soil environment indoors. On adding strain BFM-X1 to a soil sample, the PBS degradation rate accelerated approximately fivefold. Furthermore, both temperature and humidity influenced the in situ degradation of the PBS by strain BFM-X1, and temperature may be the major regulating factor. The degradation was particularly effective in the warm season, with 90% of weight loss occurring in July and August. Scanning electron microscope observations showed surface changes to the film during the degradation process, which suggested that strain BFM-X1preferentially degraded an amorphous part of the film from the surface. These results suggested that the strain B. ochroleuca BFM-X1 was a new resource for degrading PBS film and has high potential in the bioremediation of PBS-plastic-contaminated soil environment