Article Dans Une Revue Algal Research - Biomass, Biofuels and Bioproducts Année : 2024

Comparison of different small-scale cultivation methods towards the valorization of a marine benthic diatom strain for lipid production

Résumé

Marine benthic diatoms have the capacity to produce quality biomass and bioactive compounds for various commercial applications. Amphora sp. NCC169 is one of such species that have high-value lipid production. However, mass-production of Amphora sp. NCC169 in traditional suspension photobioreactor is challenged by its sensitivity to stirring and turbulence. The aim of this study is to compare the biomass and lipid productivity of Amphora sp. NCC169 cultures between a Fernbach flask and a low-maintenance, laboratory-scale culture system adapted from previously described vertically oriented porous substrate bioreactor (PSBR) designs. Results revealed that cells in the PSBR could achieve significantly higher biomass productivity (Pbiomass = 0.51 ± 0.05 g·m−2·day−1) and lipid productivity (Plipid = 0.10 ± 0.03 g·m−2·day−1) than those in Fernbach flasks after 20 days of cultivation (Pbiomass = 0.29 ± 0.01 g m−2 day−1; Plipid = 0.07 ± 0.01 g·m−2·day−1). Cellular photosynthetic efficiency remained favorable in both culture conditions (Fv/Fm > 0.5) for the duration of the experiments.

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Dates et versions

hal-04767101 , version 1 (05-11-2024)

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Mary Dianne Grace Arnaldo, Nadeeshani Dehel Gamage, Agathe Jaffrenou, Vony Rabesaotra, Aurélie Mossion, et al.. Comparison of different small-scale cultivation methods towards the valorization of a marine benthic diatom strain for lipid production. Algal Research - Biomass, Biofuels and Bioproducts, 2024, 77, pp.103327. ⟨10.1016/j.algal.2023.103327⟩. ⟨hal-04767101⟩
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