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Kothri M, Mavrommati M, Elazzazy AM, Baeshen MN, Moussa TAA, Aggelis G. Microbial sources of polyunsaturated fatty acids (PUFAs) and the prospect of organic residues and wastes as growth media for PUFA-producing microorganisms. FEMS Microbiol Lett 2020; 367:5735438. [PMID: 32053204 DOI: 10.1093/femsle/fnaa028] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/11/2020] [Indexed: 12/17/2022] Open
Abstract
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.
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Affiliation(s)
- Maria Kothri
- Unit of Microbiology, Division of Genetics, Cell and Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Maria Mavrommati
- Unit of Microbiology, Division of Genetics, Cell and Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Ahmed M Elazzazy
- Department of Biology, Faculty of Science, University of Jeddah, 23218 Jeddah, Saudi Arabi.,Department of Chemistry of Natural and Microbial Products, Division of Pharmaceutical and Drug Industries, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Mohamed N Baeshen
- Department of Biology, Faculty of Science, University of Jeddah, 23218 Jeddah, Saudi Arabi
| | - Tarek A A Moussa
- Department of Biology, Faculty of Science, University of Jeddah, 23218 Jeddah, Saudi Arabi.,Botany and Microbiology Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
| | - George Aggelis
- Unit of Microbiology, Division of Genetics, Cell and Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece.,Department of Biology, Faculty of Science, University of Jeddah, 23218 Jeddah, Saudi Arabi
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Two-stage pH control combined with oxygen-enriched air strategies for the highly efficient production of EPA by Mortierella alpina CCFM698 with fed-batch fermentation. Bioprocess Biosyst Eng 2020; 43:1725-1733. [DOI: 10.1007/s00449-020-02367-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/26/2020] [Indexed: 12/19/2022]
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