| 摘要 |
<p>PURPOSE:To raise activity of alcohol yeast after total immobilization, by producing ethanol under an anaerobic condition for a given period and repeating process to activate the totally immobilized yeast under an aerobic condition for a given period. CONSTITUTION:A yeast which is totally immobilized by a photosensive polyvinyl alcohol prepolymer containing a stilbazolium group at the side chain as a photo- responding group is prepared. Ethanol is produced from a glucide by the use of the totally immobilized enzyme under an aerobic condition for a given period. Then, a process to activate the totally immobilized yeast under an aerobic condition for a fixed period is repeated. A photosensive polyvinyl alcohol prepolymer having 500-2,000 polymerization degree, 80-100% saponification degree and 0.7-7.0mol% induction ratio of the stilbazolium group to the prepolyumer molecule is suitable as the photosensitive polyvinyl alcohol prepolymer.</p> |
