Low Polyunsaturated Fatty Acid Oils and Uses Thereof

Abstract

Provided are microalgal oils having a low polyunsaturated fatty acid profile and derivatives of the oils, including acids, esters, epoxides, hydroxylated acids and esters, urethanes, amides, and polymers thereof. Also provided are compositions comprising the oils and their derivatives and their uses in foodstuffs and in industrial and material applications. The compositions include flexible polyurethane foams prepared from the microalgal oils.

1 - 38 . (canceled) 
     
     
         39 . A solvent comprising an oleic acid ester prepared from a microalgal oil having a fatty acid profile of at least 70% oleic acids and less than 1% polyunsaturated acids. 
     
     
         40 . The solvent of  claim 39  wherein the ester is a methyl, ethyl, butyl, tert-butyl, propyl, iso-propyl, or an (ethyl)hexyl ester. 
     
     
         41 . The solvent of  claim 39 , wherein the microalgal oil has a fatty acid profile of at least 75%, 80%, or 85% oleic fatty acids. 
     
     
         42 . The solvent of  claim 39 , wherein the microalgal oil has less than 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2%, 0.1%, 0.05%, or 0.01% polyunsaturated fatty acids. 
     
     
         43 . The solvent of  claim 39  having a VOC (volatile organic compound) as measured by EPA method 24 of less than 20%, a Kauri Butanol value as measured by ASTM D1133 of greater than 50%, a kinematic viscosity at 40° C. of less than 5 centistokes, and a flash point of greater than 100° C. 
     
     
         44 . A cleaning formulation comprising a solvent of  claim 39  and an emulsifier, a non-ionic surfactant, and water. 
     
     
         45 . The cleaning formulation of  claim 44  wherein the emulsifier is Videt ME 80. 
     
     
         46 . The cleaning formulation of  claim 45  wherein the non-ionic surfactant is Stephan BioSoft N91-8. 
     
     
         47 . The cleaning formulation of  claim 46  wherein the water is deionized. 
     
     
         48 . The cleaning formulation of  claim 44  further comprising limonene, methyl soyate, or methyl ricinoleate. 
     
     
         49 . The solvent of  claim 39 , wherein the oil comprises one or more of:
 at least 10% ergosterol;   ergosterol and β-sitosterol, wherein the ratio of ergosterol to β-sitosterol is greater than 25:1;   ergosterol and brassicasterol;   ergosterol, brassicasterol, and poriferasterol; and   wherein the oil is optionally free from one or more of β-sitosterol, campesterol, and stigmasterol.   
     
     
         50 - 122 . (canceled)