The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2011
Filed:
Jan. 10, 2007
Swati Sebastian Thomas, Chennai, IN;
Swaminathan Kumaravel, Chennai, IN;
Swati Sebastian Thomas, Chennai, IN;
Swaminathan Kumaravel, Chennai, IN;
Abstract
The invention provides methods of cultivating microalgae photoautotrophically outdoors to prepare concentrated microalgae products containing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) docosahexaenoic acid, two long-chain polyunsaturated fatty acids found in fish oil that are very important for human and animal health. It also provides concentrated microalgae products containing EPA and DHA and purified lipid products containing EPA and DHA purified from microalgae. One embodiment provides a concentrated microalgae composition prepared by a process comprising: (a) cultivating microalgae photoautotrophically outdoors in open ponds under filtered sunlight in continuous or batch mode at a dilution rate of less than 35% per day; (b) harvesting the microalgae in exponential phase when cell number is increasing at a rate of at least 20% of maximal rate; and (c) concentrating the microalgae; wherein at least 40% by weight of lipids in the microalgae are in the form of glycodiacylglycerides, phosphodiacylglycerides, or a combination thereof and at least 5% by weight of fatty acids are DHA, EPA, or a combination thereof.