| 摘要 |
The biodegradable plastic i.e. poly-beta-hydroxy alkanoic acid of formula (I) [R=CH3:poly-beta-hydroxybutyrate: PHB; R=CH2-CH3: poly-beta-hydroxy valeric acid:PHV ; R=CH3 or CH2-CH3: poly-beta-hydroxy butyric acid-hydroxy valeric acid: PHB-V is produced by the use of a metanol bacterium i.e. metylobacterium sp. KCTC-0043 BP, and a precursor i.e. valeric acid, heptanoic acid, pentanol, chlorovaleric acid, 4-hydroxy butylic acid, 1,4-butanediol or 1,4-butyl lactone.
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