The enzymatic degradation of commercial biodegradable polymers by some lipases and chemical degradation of them |
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| Authors: | Chikara Tsutsumi Nobuki Hayase Katsuhiko Nakagawa Suminori Tanaka Yasushi Miyahara |
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| Institution: | 1. Department of Applied Chemistry and Biotechnology, Niihama National College of Technology, 7-1 Yagumo-cho, Niihama, 792-8580, Japan;2. OKURA INDUSTRIAL CO., LTD., 1515 Nakatsu-cho, Marugame, 763-8508, Japan |
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| Abstract: | Biodegradable polyesters, poly(butylene succinate adipate) (PBSA), poly(butylene succinate) (PBS), poly(ethylene succinate) (PES), poly(butylene succinate)/poly(caprolactone) blend (HB02B) and poly(butylene adipate terephthalate) (PBAT), were evaluated about degradability for enzymatic degradation by lipases and chemical degradation in sodium hydroxide solution. In enzymatic degradation, PBSA was the most degradable by lipase PS, on the other hand, PBAT containing aromatic ring was little degraded by eleven kinds of lipases. In 1N NaOH solution, degradation rate of PES with ethylene unit was extremely fast, in comparison with other polyesters. Interestingly the degradation rate of PBSA in enzymatic degradation by lipase PS was faster than in chemical degradation. |
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| Keywords: | biodegradable chemical degradation enzymatic degradation lipase polyesters |
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