生分解性プラスチックとリパーゼ
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概要
- 論文の詳細を見る
It is generally known that among the synthetic polymers, aliphatic polyesters are susceptible to biological attack. Polycaprolactone (PCL) with Mn 25, 000 are completely degraded by <I>Penicillium</I> sp. strain 26-1. It is found that aliphatic polyesters are hydrolyzed by several lipases andhog liver esterase. Melting point (<I>T</I><SUB>m</SUB>) of aliphatic polyesters has an effect on their degradabilities by lipase. Recently, the eyes of the world are focused on aliphatic polyesters as a biodegradable synthetic plastics. Various kinds of biodegradable plastics containing ester bonds have been developing. Ester type polyurethanes, copolyesters of aliphatic and aromatic polyesters, copoly amide-esters and copolymers composed of 2-methylene-1, 3, 6-trioxocane and styrene or vinyl acetate were hydrolyzed by lipase. The biodegradability can be effectively provided to conven tional plastics/PCL blends by conducting the design of mix combining the composition and melt viscosity ratio of the blends. Furthermore, the ecological roles of lipase are discussed.
- 日本油化学会の論文
- 1994-04-20