| abstract |
(57) [Summary] [Object] To provide a method for efficiently separating a biopolyester in a granular form from a biopolyester-containing microorganism. [Structure] After adding an alkali in an amount of 1 mmol / kg microbial cells to 1 mol / kg microbial cells to an aqueous suspension of biopolyester-containing microorganisms, the suspension is introduced into a pressure-resistant container, or the suspension is carried out in advance. The liquid is heated to 40 to 100 ° C and introduced into a pressure resistant container, heated to 40 to 100 ° C and kept warm to apply high pressure, By ejecting the suspension from the minute opening of the container, a fluid shearing force is applied to the microorganisms to separate the granular biopolyester. |