SOLVENTLESS EXTRACTION PROCESS

• Main Authors: ADU-PEASAH, SWITHIN, PATRICK, RUECKER, CRAIG, M, ENGELHARDT, BRIAN, S, VEEDER, GEORGE, T., III
• Format: Patent
• Language: English; French
• Published: 26.07.2001
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

The present invention provides a method for extracting lipids from microorganisms without using a nonpolar organic solvent as an extraction solvent. In particular, the present invention provides a method for extracting lipids from microorganisms by lysing cells and removing water soluble compound and/or materials by washing the lysed cell mixtures with aqueous washing solutions until a substantially non-emulsified lipid is obtained. L'invention concerne un procédé permettant d'extraire des lipides de micro-organismes sans utiliser de solvant organique non polaire comme solvant d'extraction. L'invention concerne, en particulier, un procédé permettant d'extraire des lipides de micro-organismes par lyse de cellules, et élimination d'un composé et/ou de matériaux solubles dans l'eau par lavage des mélanges des cellules lysées à l'aide de solutions de lavage aqueuses jusqu'à ce qu'on obtienne un lipide sensiblement émulsionné.