| 摘要 |
<p>It is intended to provide a production method whereby protein molecular weight causing defects in film formation can be lowered, thermoplasticity can be imparted to shochu (distilled spirit) lees and thus a film having excellent qualities can be produced and a film produced by this method, to thereby effectively utilize the shochu lees that has been regarded as an industrial waste and contribute to resource saving and environmental preservation. A method of producing a thermoplastic composition using shochu lees as the starting material which comprises hydrolyzing the shochu lees with a protease, filtering it, adding a plasticizer to the filtered slurry containing a large amount of the solid matters originating in the shochu lees, and hydrolyzing cellulose under supercritical or subcritical ethanol conditions followed by dehydration; a method of producing a film which comprises blending this thermoplastic composition with a biodegradable resin; and a film produced by blending the thermoplastic composition using shochu lees as the starting material with a biodegradable resin and molding the blend.</p> |
