Patent ID: 11856952
Assignee: NIPPON SUISAN KAISHA, LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C  Y | IPC A  C

Claim 11:
12. A production method for obtaining the microbial oil according to claim 1, comprising the steps of:
(a) providing a starting oil containing ARA or Mead acid in an alkyl ester form or in a free fatty acid form, obtained from a microbial biomass from a microorganism capable of producing ARA or Mead acid; and
(b) (i) purifying the starting oil by rectification under conditions including a column bottom temperature of 160° C. to 230° C. and a minimum pressure in a distillation column of 0.1 Pa to 30 Pa, thereby obtaining the microbial oil; or
(ii) performing rectification on the starting oil using a distillation column containing a structured packing under conditions including a column bottom temperature of 160° C. to 230° C. and a minimum pressure in the distillation column of 0.1 Pa to 30 Pa,, thereby obtaining the microbial oil.