title: Production of omega-3 polyunsaturated fatty acids from cull potato using an algae culture process.
abstract: Algal cultivation for converting cull potato to docosahexaenoic acid (DHA) was studied. Schizochytrium limacinum SR21 was selected as the better producing strain, compared with Thraustochytrium aureum because of higher cell density and DHA content. Used as both carbon and nitrogen source, an optimal ratio of hydrolyzed potato broth in the culture medium was determined as 50%, with which the highest production of 21.7 g/L dry algae biomass and 5.35 g/L DHA was obtained, with extra glucose supplemented. Repeat culture further improved the cell density but not fed batch culture, suggesting limited growth was most likely caused by metabolites inhibition.
authors.affiliation: Department of Biological Systems Engineering, Washington State University, WA 99163, USA.
authors.forename: Zhanyou
authors.initials: Z
authors.lastname: Chi
authors.forename: Bo
authors.initials: B
authors.lastname: Hu
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Craig
authors.initials: C
authors.lastname: Frear
authors.forename: Zhiyou
authors.initials: Z
authors.lastname: Wen
authors.forename: Shulin
authors.initials: S
authors.lastname: Chen
mesh_terms: D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods*; D056890:Eukaryota / Q000378:metabolism*; D015525:Fatty Acids, Omega-3 / Q000378:metabolism*; D007220:Industrial Waste / Q000517:prevention & control*; D011198:Solanum tuberosum / Q000382:microbiology*
chemical_list: D015525:Fatty Acids, Omega-3; D007220:Industrial Waste