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Tounsi L, Ben Hlima H, Derbel H, Duchez D, Gardarin C, Dubessay P, Drira M, Fendri I, Michaud P, Abdelkafi S. Enhanced growth and metabolite production from a novel strain of Porphyridium sp. Bioengineered 2024; 15:2294160. [PMID: 38131141 PMCID: PMC10761138 DOI: 10.1080/21655979.2023.2294160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Microalgae are capable of generating numerous metabolites that possess notable biological activities and hold substantial promise for various industrial applications. Nevertheless, the taxonomic diversity of these photosynthetic microorganisms has not received thorough investigation. Using the 18S rRNA encoding gene, a recently discovered strain originating from the Tunisian coast (the governorate of Mahdia) was identified as a member of the Porphyridium genus. The growth response as well as the metabolite accumulation of Porphyridium sp. to different culture media (Pm, F/2, and Hemerick) was investigated over a period of 52 days. The highest biomass production was recorded with Pm medium (2 × 107 cell/mL). The apparent growth rates (µ) and the doubling time (Dt) were about 0.081 day-1 and 12.34 days, respectively. The highest chlorophyll a (0.678 ± 0.005 pg/cell), total carotenoids (0.18 ± 0.003 pg/cell), phycoerythrin (3.88 ± 0.003 pg/cell), and proteins (14.58 ± 0.35 pg/cell) contents were observed with F/2 medium. Cultivating Porphyridium sp. in both F/2 and Hemerick media yielded similar levels of starch accumulation. The Hemerick medium has proven to be the most suitable for the production of lipids (2.23% DW) and exopolysaccharides (5.41 ± 0.56 pg/cell).
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Affiliation(s)
- Latifa Tounsi
- Laboratory of Enzymatic Engineering and Microbiology, Algae Biotechnology Team. National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
- CNRS, SIGMA Clermont, Pascal Institute, Clermont Auvergne University, Clermont-Ferrand, France
| | - Hajer Ben Hlima
- Laboratory of Enzymatic Engineering and Microbiology, Algae Biotechnology Team. National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - Hana Derbel
- Laboratory of Enzymatic Engineering and Microbiology, Algae Biotechnology Team. National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
| | - David Duchez
- CNRS, SIGMA Clermont, Pascal Institute, Clermont Auvergne University, Clermont-Ferrand, France
| | - Christine Gardarin
- CNRS, SIGMA Clermont, Pascal Institute, Clermont Auvergne University, Clermont-Ferrand, France
| | - Pascal Dubessay
- CNRS, SIGMA Clermont, Pascal Institute, Clermont Auvergne University, Clermont-Ferrand, France
| | - Marwa Drira
- Laboratory of Biotechnology and Plant Improvement, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| | - Imen Fendri
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
| | - Philippe Michaud
- CNRS, SIGMA Clermont, Pascal Institute, Clermont Auvergne University, Clermont-Ferrand, France
| | - Slim Abdelkafi
- Laboratory of Enzymatic Engineering and Microbiology, Algae Biotechnology Team. National Engineering School of Sfax, University of Sfax, Sfax, Tunisia
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Tounsi L, Ben Hlima H, Hentati F, Hentati O, Derbel H, Michaud P, Abdelkafi S. Microalgae: A Promising Source of Bioactive Phycobiliproteins. Mar Drugs 2023; 21:440. [PMID: 37623721 PMCID: PMC10456337 DOI: 10.3390/md21080440] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
Phycobiliproteins are photosynthetic light-harvesting pigments isolated from microalgae with fluorescent, colorimetric and biological properties, making them a potential commodity in the pharmaceutical, cosmetic and food industries. Hence, improving their metabolic yield is of great interest. In this regard, the present review aimed, first, to provide a detailed and thorough overview of the optimization of culture media elements, as well as various physical parameters, to improve the large-scale manufacturing of such bioactive molecules. The second section of the review offers systematic, deep and detailed data about the current main features of phycobiliproteins. In the ultimate section, the health and nutritional claims related to these bioactive pigments, explaining their noticeable potential for biotechnological uses in various fields, are examined.
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Affiliation(s)
- Latifa Tounsi
- Enzymatic Engineering and Microbiology Laboratory, Algae Biotechnology Team, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia; (L.T.); (H.B.H.); (O.H.); (H.D.); (S.A.)
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Hajer Ben Hlima
- Enzymatic Engineering and Microbiology Laboratory, Algae Biotechnology Team, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia; (L.T.); (H.B.H.); (O.H.); (H.D.); (S.A.)
| | - Faiez Hentati
- INRAE, Animal Research Unit and Functionalities of Animal Products (UR AFPA), University of Lorraine, USC 340, F-54000 Nancy, France;
| | - Ons Hentati
- Enzymatic Engineering and Microbiology Laboratory, Algae Biotechnology Team, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia; (L.T.); (H.B.H.); (O.H.); (H.D.); (S.A.)
| | - Hana Derbel
- Enzymatic Engineering and Microbiology Laboratory, Algae Biotechnology Team, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia; (L.T.); (H.B.H.); (O.H.); (H.D.); (S.A.)
| | - Philippe Michaud
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Slim Abdelkafi
- Enzymatic Engineering and Microbiology Laboratory, Algae Biotechnology Team, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia; (L.T.); (H.B.H.); (O.H.); (H.D.); (S.A.)
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