Effect of culture medium on the growth of microscopic algae (Chlorophyceae) biomass showing biosorption potential: A case study Pseudopediastrum boryanum

Abstract

The present results are the effect of bioprospecting of an appropriate medium, which could optimize the quality and quantity of the microalga Pseudopiediastrum boryanum var. longicorne Reinsch biomass cultured in a laboratory photobioreactor for biosorption purposes. Four liquid media commonly used for cultivation of green algae of the genus Pediastrum were compared, including Knop's, Waris-H, Chu's and L-S2T2 media, which differed with respect to the composition and concentration of nutrients. A number of the parameters characterizing biomass growth, namely dry weight, optical density, chlorophyll a concentration, as well as morphological parameters characterizing the condition of the alga and its surface area indicating the potential sorption capacity (population structure, cell number, coenobium size and marginal cell size), showed a significant impact of culture medium on the growth of the microalga. The most productive culture was found in the L-S2T2 medium containing organic substances in the form of peat and soil extracts, which could be crucial for biomass production and the area of potential sorption capacity. P < 0.001), L-S2T2 and Chu's ( c P < 0.05), L-S2T2 and Waris-H ( b P < 0.05, bb P < 0.01, bbb P < 0.001), Chu's and Knop's ( d P < 0.05, dd P < 0.01).

Integrative Approach Helps Clarify Confusing Taxonomy of the Pseudopediastrum boryanum Species Complex (Chlorophyceae), Including Recognition of five Distinct Species

“…Cell sizes are comparable among the varieties (Lenarczyk 2014), and plasticity of this feature was observed by Lenarczyk (2016). Similarly, coenobium size can overlap each other among most varieties (Kom arek and Jankovsk a 2001), depending on ecological factors (Chang and Chang-Schneider 1980, Lenarczyk 2016, Sutkowy et al 2019. Statistical analysis in three Ps.…”

“…Similarly, coenobium size can overlap each other among most varieties (Komárek and Jankovská 2001), depending on ecological factors (Chang and Chang‐Schneider 1980, Lenarczyk 2016, Sutkowy et al. 2019). Statistical analysis in three Ps.…”