ANTIMICROBIAL ACTIVITY OF SURFACTANTS OF MICROBIAL ORIGIN
Journal Title: Biotechnologia Acta - Year 2019, Vol 12, Issue 1
Abstract
The recent literature data about the antibacterial and antifungal activity of microbial surfactants (lipopeptides synthesized by representatives of genera Bacillus, Paenibacillus, Pseudomonas, Brevibacillus, rhamnolipids of bacteria Pseudomonas, Burkholderia, Lysinibacillus sp., sophorolipids of yeasts Candida (Starmerella) and Rhodotorula), and our own experiments data concerning antimicrobial activity of surfactants synthesized by Acinetobacter calcoaceticus IMB B-7241, Rhodococcus erythropolis IMB Aс-5017 and Nocardia vaccini IMV B-7405 were presented. The analysis showed that lipopeptides were more effective antimicrobial agents compared to glycolipids. Thus, the minimum inhibitory concentrations (MIC) of lipopeptides, ramnolipids and sophorolipids are on average (μg/ml): 1–32, 50–500, and 10–200, respectively. The MIC of surfactants synthesized by the IMV B-7241, IMV Ac-5017 and IMV B-7405 strains are comparable to those of the known microbial lipopeptides and glycolipids. The advantages of glycolipids as antimicrobial agents compared with lipopeptides were the possibility of their synthesis on industrial waste and the high concentration of synthesized surfactants. The literature data and our own results indicate the need to study the influence of microbes’ cultivation conditions on the antimicrobial activity of the final product.
Authors and Affiliations
T. P. Pirog, D. A. Lutsay, L. V. Kliuchka, K. A. Beregova
Keywords
Related Articles
- EP ID EP573021
- DOI 10.15407/biotech12.01.039
- Views 144
- Downloads 0
MICROBIAL SYNTHESIS OF PHYTOHORMONES
The aim of the review was to analyze current literature data and the results of own studies on the synthesis of auxins, cytokinins, and gibberellins by plant-associated microorganisms (living in rhizosphere, endophy...
ISOLATION OF PURE CULTURES IRON- AND MANGANESE-OXIDIZING BACTERIA FROM RAPID FILTERS
The aim of the research was the isolation from drinking water the pure cultures of iron- and manganese-oxidizing microorganisms with further assessment of their efficacy to remove these contaminants on rapid filters. To...
ILLUMINATION INFLUENCE ON Chlorella sorokiniana BIOMASS SYNTHESIS
The aim of the work was to estimate the influence of illumination on the rate of Chlorella sorokiniana alga biomass synthesis; kinetic dependencies of the synthesis and unit rate of biomass growth at different illuminati...
ELECTRONIC INFORMATION SYSTEMS FOR MONITORING OF POPULATIONS AND MIGRATIONS OF INSECTS
The purpose of the work was to analyze existing information systems (IS) of biological objects and to propose the methods for development of such IS for insects on the example of Noctuidae (Lepidoptera). A detailed analy...
DEGRADATION OF FLAVONOIDS BY Cryptococcus albidus α-L-RHAMNOSIDASE
The aim of the work was to investigate the possibility of practical use substrate specificity of α-Lrhamnosidase Cryptococcus albidus. p-Nitrophenyl derivatives of monosaccharides were used to determine the activity and...