IMR Press / FBE / Volume 14 / Issue 1 / DOI: 10.31083/j.fbe1401005
Open Access Original Research
Applicability of water from the Bay of Gdańsk as a growth medium for mixotrophic culture of Platymonas subcordiformis
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1 Department of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-720 Olsztyn, Poland
2 Department of Water Supply and Sewage Systems, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Bialystok, Poland
*Correspondence: (Marcin Dębowski)
Academic Editor: Ganesh D. Saratale
Front. Biosci. (Elite Ed) 2022, 14(1), 5;
Submitted: 22 December 2021 | Revised: 7 January 2022 | Accepted: 8 January 2022 | Published: 14 February 2022
Copyright: © 2022 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.

P. subcordiformis is a potentially promising species with commercial, environmental and technological viability for industrial applications. The great potential of these microalgae lies in their fast biomass growth, pollution resistance, and compatibility with different culture media. This study aimed to determine the efficiency of P. subcordiformis biomass production in a medium prepared with water from the Bay of Gdańsk. The tested medium supported high biomass growth rates which reached 317.58 ± 42.31 mgVS/dm3d in the best-performing variant, with a final concentration of 3493.3 ± 465.4 mgVS/dm3d. In the autotrophic culture, nitrogen and phosphorus removal exceeded 98%. Amending the mixotrophic culture with glucose did not affect P. subcordiformis concentrations. However, it did significantly limit the demand for nutrients in the biomass and reduced chlorophyll a production in the cells.

Platymonas subcordiformis
Mixotrophic culture
Natural water
Growth medium
Fig. 1.
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