Fermentative microalgae

Martek (http //www.martekbio.com) and DSM have developed processes to produce oils rich in DHA and ARA. The DHA is extracted from fermented microalgae (Cryptecodiunium cohnii) and the ARA is extracted from soil fungus (Mortierelle alpina). In the DHA production process, the microalgae are grown in fermentors (80,000 to 260,000 liters scale). The cellmass is then... 

Ethanol production from carbon dioxide by fermentative microalgae... 

Boswell, K.D.V., Gladue, R., Prima, B. and Kyle, D.J. (1992) SCO production by fermentative microalgae, in Industrial Applications of Single Cell Oils, eds. D.J. Kyle and C. Ratledge, American Oil Chemists Society, Champaign, IL, pp. 274-286. 

Lobbying by other P-carotene producers — In addition to approvals of mixed carotenes from palm oil, P-carotene from Dunaliella microalgae, and other natural products, the EU Health and Consumer Protection Directorate General was asked for an opinion on the safety of P-carotene from a dried biomass source, obtained from a fermentation process with Blakeslea trispora for use as a coloring matter for foodstuffs. 

Another marine product undergoing development is docosahexaenoic acid (DHA), developed via fermentation of a microalgae. DHA is a major component in human gray matter and is important for normal healthy development in infants. Various groups, such as the World Health Organization, have recommended DHA s inclusion in infant formulas at levels similar to those found in human milk. DHA is presently used in Belgium and Holland and is expected to gain approval in the United States. 

Xu, H. X. Miao Q. Wu. High quality biodiesel production from a microalga chlorella prototh-ecoides by heterotrophicgrowth in fermenters./. Biotechnol. 2006, 126, 499-507. 

Borowitzka MA Commercial production of microalgae ponds, tanks, and fermenters. Prog Ind Microbiol 35 313-321, 1999. 

Efremenko EN, Nikolskaya AB, Lyagin IV, Senko OV, Makhlis TA, Stepanov NA, Maslova OV, Mamedova F, Varfolomeev SD (2012) Production of biofuels from pretreated microalgae biomass by anaerobic fermentation with immobilized Clostridium acetobutylicum cells. Bioresour Technol 114 342-348... 

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