IMPACT OF FUROATE AND SALICYLATE COORDINATION COMPLEXES ON THE LIPID FRACTIONAL COMPOSITION OF Actinomadura sp. 37

MAXIM BÎRSA(1*), SVETLANA BURȚEVA(1), TAMARA SÎRBU(1), VIORINA GORINCHOY(2), SILVIA MELNIC(2)

1. Technical University of Moldova, Institute of Microbiology and Biotechnology, Academiei 1 street, MD-2028, Chisinau, Republic of Moldova
2. State University of Moldova, Institute of Chemistry, Academiei 3 street, MD-2028, Chisinau, Republic of Moldova
* Corresponding author: maxim.birsa@imb.utm.md

DOI: https://doi.org/10.29081/ChIBA.2025.647

Abstract

The aim of this study was to investigate the influence of furoate and salicylate coordination complexes on Actinomadura sp. 37, a promising producer of secondary metabolites such as lipids. Biomass accumulation, total lipid content, and lipid fractional composition were analyzed following cultivation of the strain in Gause medium supplemented with various concentrations of furoate (F) and salicylate (S) complexes. The results regarding biomass accumulation and lipogenesis activity of the Actinomadura sp. 37 strain showed no positive impact on biomass accumulation. For both complexes, the decrease ranged between 2 and 48 %. However, in terms of lipogenesis, the strain exhibited stimulatory activity only in variant 4 (Gause + 10 % F), where the lipid content was 2.5 times higher compared to the control sample. Based on the fractional composition, the highest amount of mono- and diglycerides was obtained during cultivation on medium 6 (G + 5 % S), which was 52 % higher than in the control sample. Triglycerides and sterols reached the maximum amount in case 5 (G + 1 % S), more by 66 % and 95 %, respectively. The increase in the most important lipid fractions is attributed to the presence of a carboxyl group in the coordination complexes used. The enriched microbial biomass obtained can potentially be used in animal husbandry as a dietary supplement for farm animals in the future.


Keywords

actinobacteria biomass lipids coordination complexes monoglycerides diglycerides triglycerides sterols