Solvent extraction of polyhydroxyalkanoates from biomass
AssigneeThe Procter & Gamble Company
InventorsIsao Noda, Lee Arnold Schechtman
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Abstract
The present invention relates to a process for separating polyhydroxyalkanoate from a biomass, the process comprising extracting the polyhydroxyalkanoate with at least one PHA solvent selected from the group consisting of acetone, acetonitrile, benzene, butyl acetate, butyl propionate, .beta.-butyrolactone, .gamma.-butyrolactone, diethyl carbonate, diethylformamide, dimethyl carbonate, dimethyl succinate, dimethyl sulfoxide, dimethylformamide, ethyl acetate, ethylene glycol diacetate, methyl acetate, methyl ethyl ketone, 1,4-dioxane, tetrahydrofuran, toluene, xylene, and mixtures thereof.
Claims24
A process for separating polyhydroxyalkanoate from a biomass comprising the polyhydroxyalkanoate, the process comprising extracting the polyhydroxyalkanoate with at least one PHA solvent selected from the group consisting of acetone, benzene, butyl acetate, butyl propionate, diethyl carbonate, diethylformamide, dimethyl carbonate, dimethyl sulfoxide, dimethylformamide, ethyl acetate, methyl acetate, methyl ethyl ketone, toluene, xylene, and mixtures thereof;
- wherein the polyhydroxyalkanoate has a melt temperature of about 80.degree. C. or higher.
Dependencies are inferred from the claim text.