Degradation of aliphatic polyester films by commercially available lipases with special reference to rapid and complete degradation of poly(L-lactide) film by lipase PL derived from Alcaligenes sp.
作者： Akira Hoshino , Yasuyuki Isono
关键词: Polybutylene succinate 、 Polyester 、 Alcaligenes 、 Enzymatic hydrolysis 、 Lipase 、 Biodegradation 、 Monomer 、 Organic chemistry 、 Chemistry 、 Hydrolysis
摘要: Commercial lipases were examined for their degradation efficiency of aliphatic polyester films. In 100 days immersion films in lipase solutions at37 °C at pH 7.0,Lipase Asahi derived from Chromobacterium viscosum degraded polybutylene succinate-co-adipate (PBSA), poly (e-caprolactone) (PCL) and succinate (PBS), Lipase F Rhizopus niveus PBSA PCL during 4–17 days. F-AP15 fromRhizopus orizae could degrade 22 these cases, PBS mainly to dimers, whereas was monomers. Only poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(PHB/V) (L-lactide) (PLA) not the experiments. However, PLA completely 55 °C, 8.5 with PL 20 This result be explained sequential reactions chemical hydrolysis polymer oligomers higher temperature, succeeding enzymatic
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