Systems and methods for extracting lipids from and...

Details Systems and methods for extracting lipids from and... Systems and methods for extracting lipids from and...

2011-01-11

2011-01-11

Carr, Deborah D (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

Reexamination Certificate

active

07868195

ABSTRACT:
Exemplary methods include centrifuging a wet algal biomass to increase a solid content of the wet algal biomass to between approximately 10% and 40% to result in a centrifuged algal biomass, mixing the centrifuged algal biomass with an amphiphilic solvent to result in a mixture, heating the mixture to result in a dehydrated, defatted algal biomass, separating the amphiphilic solvent from the dehydrated, defatted algal biomass to result in amphiphilic solvent, water and lipids, evaporating the amphiphilic solvent from the water and the lipids, and separating the water from the lipids. The amphiphilic solvent may be selected from a group consisting of acetone, methanol, ethanol, isopropanol, butanone, dimethyl ether, and propionaldehyde. Other exemplary methods include filtering a wet algal biomass through a membrane to increase a solid content of the wet algal biomass to between approximately 10% and 40% to result in a filtered algal biomass.

REFERENCES:
patent: 5539133 (1996-07-01), Kohn et al.

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