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Patent Picks—Renewable Polyphenols, Eco-friendly Gellants, Nano Silver Particles and More
By: Rachel L. Grabenhofer
Posted: July 24, 2012
page 4 of 4
Mass culture of microalgae for lipid production
US Patent 8017377
Publication date: Sept. 13, 2011
Assignee: AgOil International, LLC
According to this patent, a variety of algae species have been grown for decades as nutritional supplements, pharmaceutical applications, cosmetic ingredients and more. They are a source of pigments, proteins, enzymes, vitamins and amino acids. The method of production described here, disclosed late last year, is a process to create high density microalgae having high lipid concentration in mass culture including the steps of inoculating a vessel with microalgae at mid-log phase to a depth greater than 25 cm, then culturing the microalgae to a preselected target density threshold, bringing the microalgae to stationary phase, manipulating growth parameters to maximize lipid concentration, and harvesting the vessel.
