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Isolation, Identification and Biotechnological Applications of a Novel, Robust, Free-living Chlorococcum (Oophila) amblystomatis Strain Isolated from a Local Pond

Correia, Nadia ; Pereira, Hugo ; Silva, Joana T ; Santos, Tamara ; Soares, Maria ; Sousa, Carolina B ; Schuler, Lisa M ; Costa, Margarida ; Varela, Joao ; Pereira, Leonel ; Silva, Joana

Applied sciences, 2020-05, Vol.10 (9), p.3040 [Revista revisada por pares]

Basel: MDPI AG

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Título:
Isolation, Identification and Biotechnological Applications of a Novel, Robust, Free-living Chlorococcum (Oophila) amblystomatis Strain Isolated from a Local Pond
Autor: Correia, Nadia ; Pereira, Hugo ; Silva, Joana T ; Santos, Tamara ; Soares, Maria ; Sousa, Carolina B ; Schuler, Lisa M ; Costa, Margarida ; Varela, Joao ; Pereira, Leonel ; Silva, Joana
Materias: Algae ; Analysis ; Ashes ; Biochemical composition ; Biomass ; Bioprospecting ; bioprospection ; biotechnological applications ; Carbohydrates ; Carotenoids ; Chlorococcum ; Chlorococcum (Oophila) amblystomatis ; Chlorophyll ; Deoxyribonucleic acid ; DNA ; Identification and classification ; Industrial production ; industrial-scale production ; Laboratories ; Lipids ; Lutein ; Methods ; microalgae ; Microbial biotechnology ; Microorganisms ; Microscopy ; Nutrient content ; photobioreactors ; Phylogeny ; Pond ecology ; Ponds ; Probiotics ; Productivity ; Proteins ; rRNA 18S
Es parte de: Applied sciences, 2020-05, Vol.10 (9), p.3040
Descripción: Bioprospection of novel autochthonous strains is key to the successful industrial-scale production of microalgal biomass. A novel Chlorococcum strain was recently isolated from a pond inside the industrial production facility of Allmicroalgae (Leiria, Portugal). Phylogenetic analysis based on 18S ribosomal ribonucleic acid (rRNA) gene sequences suggests that this isolate is a novel, free-living Oophila amblystomatis strain. However, as our phylogenetic data strongly suggests that the aforementioned taxon belongs to the genus Chlorococcum, it is here proposed to rename this species as Chlorococcum amblystomatis. In order to characterize the biotechnological potential of this novel isolate, growth performance and biochemical composition were evaluated from the pilot (2.5-m3) to industrial (10-m3) scale. The highest maximum areal productivity (36.56 g·m−2·day−1) was reached in a 10-m3 tubular photobioreactor (PBR), as compared to that obtained in a 2.5-m3 PBR (26.75 g·m−2·day−1). Chlorococcum amblystomatis displayed high protein content (48%–56% dry weight (DW)) and moderate levels of total lipids (18%–31% DW), carbohydrates (6%–18% DW) and ashes (9%–16% DW). Furthermore, the lipid profile was dominated by polyunsaturated fatty acids (PUFAs). The highest pigment contents were obtained in the 2.5-m3 PBR, where total chlorophylls accounted for 40.24 mg·g−1 DW, followed by lutein with 5.37 mg·g−1 DW. Overall, this free-living Chlorococcum amblystomatis strain shows great potential for nutritional applications, coupling a promising growth performance with a high protein content as well as relevant amounts of PUFAs, chlorophyll, and carotenoids.
Editor: Basel: MDPI AG
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Isolation, Identification and Biotechnological Applications of a Novel, Robust, Free-living Chlorococcum (Oophila) amblystomatis Strain Isolated from a Local Pond

Correia, Nadia ; Pereira, Hugo ; Silva, Joana T ; Santos, Tamara ; Soares, Maria ; Sousa, Carolina B ; Schuler, Lisa M ; Costa, Margarida ; Varela, Joao ; Pereira, Leonel ; Silva, Joana

Basel: MDPI AG

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