Omega 7 rich compositions and methods of isolating omega 7 fatty acids
First Claim
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1. A method of isolating an omega-7 fatty acid ester from algal biomass, comprising the steps of:
- (a) Extracting oil from algal biomass comprising C16;
1 fatty acids;
(b) Transesterifying the extracted oil to generate a first algal extract mixture;
(c) Decanting the first algal extract mixture to separate a second algal extract fraction and a fraction comprising glycerine and water;
(d) A first distilling of the second algal extract fraction to separate a third algal extract fraction and a fraction comprising carotenoids, chlorophylls, and unesterified material;
(e) A second distilling of the third algal extract fraction to separate a fraction rich in omega-7 esters and a fraction rich in eicosapentaenoic acid (EPA) esters; and
(f) Isolating the fraction rich in omega-7 esters from the fraction rich in EPA esters.
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Abstract
Disclosed here are compositions rich in omega-7 fatty acids, including palmitoleic acid, and products rich in omega-7 fatty acids derived from algal biomass. The algae and/or compositions rich in omega-7 fatty acids may be used in products or as ingredients of products. Methods and systems for increasing the production or concentration of omega-7 fatty acids, and isolating omega-7 fatty acids from algal biomass are also disclosed herein.
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Citations
11 Claims
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1. A method of isolating an omega-7 fatty acid ester from algal biomass, comprising the steps of:
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(a) Extracting oil from algal biomass comprising C16;
1 fatty acids;(b) Transesterifying the extracted oil to generate a first algal extract mixture; (c) Decanting the first algal extract mixture to separate a second algal extract fraction and a fraction comprising glycerine and water; (d) A first distilling of the second algal extract fraction to separate a third algal extract fraction and a fraction comprising carotenoids, chlorophylls, and unesterified material; (e) A second distilling of the third algal extract fraction to separate a fraction rich in omega-7 esters and a fraction rich in eicosapentaenoic acid (EPA) esters; and (f) Isolating the fraction rich in omega-7 esters from the fraction rich in EPA esters. - View Dependent Claims (2, 3, 4, 5)
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6. A method of isolating an omega-7 fatty acid ester from algal biomass, comprising the steps of:
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(a) Extracting oil from algal biomass comprising C16;
1 fatty acids;(b) Adding a solvent to the extracted oil to generate a first algal extract mixture; (c) Transesterifying the first algal extract mixture to generate a second algal extract mixture; (d) Decanting the second algal extract mixture to separate a third algal extract fraction and a fraction comprising glycerine and water; (e) A first distilling of the third algal extract fraction to separate a fourth algal extract fraction and a fraction comprising carotenoids, chlorophylls, and unesterified material; (f) A second distilling of the fourth algal extract fraction to separate a first fraction rich in omega-7 esters and a fraction rich in eicosapentaenoic acid (EPA) esters; and (g) Isolating the first fraction rich in omega-7 esters from the fraction rich in EPA esters. - View Dependent Claims (7, 8, 9, 10)
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11. A method of producing alkanes from an algal oil, comprising the steps of:
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(a) Extracting oil from algal biomass; (b) Mixing the extracted oil with a solvent and heating in a solvent extraction process to generate a first algal extract fraction and a water soluble fraction; (c) Separating the first algal extract fraction and the water soluble fraction; (d) Degumming the first algal extract fraction with acid and heat to generate a second algal extract fraction and a fraction comprising lecithin, metals and glycolipids; (e) Separating the second algal extract fraction and the fraction comprising lecithin, metals and glycolipids; (f) Adsorption of the second algal extract fraction with a solvent wash to generate a third algal extract fraction and a fraction comprising carotenoids and chlorophylls; (g) Separating the third algal extract fraction and the fraction comprising carotenoids and chlorophylls; (h) Crystallizing the third algal extract fraction with chilling to separate a fraction rich in EPA and a fraction rich in saturated oils; and (i) Hydrotreating the fraction rich in saturated oils to generate alkanes.
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Specification