Microbial sources of polyunsaturated fatty acids (PUFAs) and the prospect of organic residues and wastes as growth media for PUFA-producing microorganisms
| Autor: | Maria Mavrommati, Tarek A. A. Moussa, Ahmed M. Elazzazy, Maria Kothri, Mohamed N. Baeshen, George Aggelis |
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| Rok vydání: | 2019 |
| Předmět: |
Microorganism
Yarrowia Fungus Raw material Microbiology Genetics Microalgae Food science Isochrysis Molecular Biology chemistry.chemical_classification biology Fungi biology.organism_classification Genetically modified organism Culture Media chemistry Metabolic Engineering Biofuels Fermentation Fatty Acids Unsaturated Oils Polyunsaturated fatty acid Biotechnology |
| Zdroj: | FEMS microbiology letters. 367(5) |
| ISSN: | 1574-6968 |
| Popis: | The discovery of non-fish sources of polyunsaturated fatty acids (PUFAs) is of great biotechnological importance. Although various oleaginous microalgae and fungi are able of accumulating storage lipids (single cell oils – SCOs) containing PUFAs, the industrial applications utilizing these organisms are rather limited due to the high-fermentation cost. However, combining SCO production with other biotechnological applications, including waste and by-product valorization, can overcome this difficulty. In the current review, we present the major sources of fungi (i.e. members of Mucoromycota, fungoid-like Thraustochytrids and genetically modified strains of Yarrowia lipolytica) and microalgae (e.g. Isochrysis, NannochloropsisandTetraselmis) that have come recently to the forefront due to their ability to produce PUFAs. Approaches adopted in order to increase PUFA productivity and the potential of using various residues, such as agro-industrial, food and aquaculture wastes as fermentation substrates for SCO production have been considered and discussed. We concluded that several organic residues can be utilized as feedstock in the SCO production increasing the competitiveness of oleaginous organisms against conventional PUFA producers. |
| Databáze: | OpenAIRE |
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