| 摘要 |
<p>Poly-β-hydroxy-octanoic acid, a multi-purpose product, is prepared by means of a method for aerobically fermenting bacteria which can accumulate said acid, wherein a nutrient solution containing a growth control agent is added to the culture medium to maintain a dilution level of about 0.050-0.100 h-1. Once it has been separated from the culture medium, the biomass is suspended in acetone or isopropanol, and the separated and dried cell mass is dissolved in an unchlorinated inert organic solvent. The desired acid is obtained by evaporating the clear filtrate which is recovered after separating the solid mass in the form of a stable polymeric film.</p> |
