Single-Cell Oils as a Source of Omega-3 Fatty Acids: An Overview of Recent Advances

被引:81
作者
Armenta, Roberto E. [1 ]
Valentine, Mercia C. [1 ]
机构
[1] Ocean Nutr Canada Ltd, Fermentat & Metab Engn Grp, Dartmouth, NS B2Y 4T6, Canada
关键词
Omega-3 fatty acids; Single cell oils; Docosahexaenoic acid; Eicosapentaenoic acid; Fermentation; Thraustochytrids; Omega-6 fatty acids; DIATOM NITZSCHIA-LAEVIS; EICOSAPENTAENOIC ACID PRODUCTION; POLYUNSATURATED FATTY-ACIDS; MICROALGA CRYPTHECODINIUM-COHNII; SUPERCRITICAL-FLUID EXTRACTION; FUNGUS PYTHIUM-IRREGULARE; DOCOSAHEXAENOIC ACID; MORTIERELLA-ALPINA; LIPID EXTRACTION; HETEROTROPHIC PRODUCTION;
D O I
10.1007/s11746-012-2154-3
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Omega-3 fatty acids, namely docosahexaenoic acid and eicosapentaenoic acid, have been linked to several beneficial health effects (i.e. mitigation effects of hypertension, stroke, diabetes, osteoporosis, depression, schizophrenia, asthma, macular degeneration, rheumatoid arthritis, etc.). The main source of omega-3 fatty acids is fish oil; lately however, fish oil market prices have increased significantly. This has prompted a significant amount of research on the use of single-cell oils as a source of omega-3 fatty acids. Some of the microbes reported to produce edible oil that contains omega-3 fatty acids are from the genus Schizochytrium, Thraustochytrium and Ulkenia. An advantage of a single cell oil is that it usually contains a significant amount of natural antioxidants (i.e. carotenoids and tocopherols), which can protect omega-3 fatty acids from oxidation, hence making this oil less prone to oxidation than oils derived from plants and marine animals. Production yields of single cell oils and of omega-3 fatty acids vary with the microbe used, with the fermentative growing conditions, and extractive procedures employed to recover the oil. This paper presents an overview of recent advances, reported within the last 10 years, in the production of single cell oils rich in omega-3 fatty acids.
引用
收藏
页码:167 / 182
页数:16
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