Polyester-degrading thermophilic actinomycetes isolated from different environment in Taiwan |
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Authors: | Min Tseng Kim-Chi Hoang Mei-Kwei Yang Shu-Feng Yang Wen Shen Chu |
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Affiliation: | (1) Bioresource Collection and Research Center, Food Industry Research and Development Institute, 331, Shih-Ping Rd., Hsinchu, 300, Taiwan, ROC;(2) Department of Chemical and Material Engineering, Ta-Hwa Institute of Technology, 1, Ta-Hwa Road, Chiung-Lin, Hsinchu, 30743, Taiwan, ROC;(3) Department of Life Science, Fu Jen Catholic University, 510 Chun Cheng Rd. Hsinchuang, Taipei, 242, Taiwan, ROC |
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Abstract: | Thermophilic actinomycetes strains were isolated from various environment in Taiwan and screened for degradation of poly(ethylene succinate) (PES), poly(ε-caprolactone) (PCL) and/or poly(β-hydroxybutyrate) (PHB) by the clear-zone method. Out of 341 strains of thermophilic actinomycetes, 105 isolates were PHB-degraders (30.8%), 198 isolates were PCL-decomposers (58.1%), and 99 isolates could degrade PES (29.0%). Furthermore, 77 isolates could degrade both PHB and PCL (22.6%), 35 isolates could degrade both PHB and PES (10.3%), 81 isolates could degrade both PES and PCL (23.8%) and 31 isolates could degrade the three polyesters used in this study (9.1%). Base on the morphological and chemical characteristics, these 31 isolates belonging to Actinomadura (12.9%), Microbispora (25.8%), Streptomyces (48.4%), Thermoactinomyces (9.7%) and Saccharomonospora genus (3.22%). |
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Keywords: | Thermophile actinomycetes Microbial degradation Polyester Environment |
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