ポリエステル樹脂分解菌のスクリーニング
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概要
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[Synopsis] Two microbial communities A and F degrading polyester or styrene-acrylic resins were successively screened from compost and soil, respectively. Microbial communities A and F degraded the polyester resin with a 70 ％ degradation rate for 7 days culture. No product was able to detect from culture broth by TLC-FID analysis. Styrene-acrylic resin was degraded by community A with a 25 ％ degradation for 7 days culture and the aromatic compounds were detected from the culture solution. However, the transfer of the culture solution for three times resulted in no degradation of the resin. Community F degraded no styrene-acrylic resin. Three bacterial strains were isolated from community A on R2A agar plate and identified as Pseudomonas sp., Pseudoxanthomonas mexicana and Alcaligenes sp. by 16S rDNA sequences and their physiological and biochemical characteristics. Pure culture of the isolated strains degraded the polyester resin with a lower degradation rate compared to that of community.
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