2021Journal of Microbiology Biotechnology and Food SciencesOpen access

IDENTIFICATION OF LIPOPEPTIDES PRODUCED BY BACILLUS AMYLOLIQUEFACIENS STRAINS

Zdenka Bedlovičová, Karolína Englerová, Radomı́ra Nemcová, Miroslava Kačániová

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Abstract

In this study we isolated and identified the lipopeptides produced by Bacillus amyloliquefaciens strains 1/6k and 4/9, which were isolated from Adriatic Sea. Lipopeptides belong to the family of cyclic biosurfactants representing a group of surface active compounds produced by various microorganisms. Studied Bacillus spp. strains were able to produce cyclic lipopeptides surfactin, iturin A and fengycin. The characterisation of lipopeptides was studied by various analytical techniques (high-performance liquid chromatography – HPLC and matrix-assisted laser desorption/ionization time-of-flight analysis for molecular mass determination – MALDI-TOF/MS). These methods confirmed co-production of three lipopeptides – surfactin, iturin A and fengycin by Bacillus amyloliquefaciens.

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In this study we isolated and identified the lipopeptides produced by Bacillus amyloliquefaciens strains 1/6k and 4/9, which were isolated from Adriatic Sea. Lipopeptides belong to the family of cyclic biosurfactants representing a group of surface active compounds produced by various microorganisms. Studied Bacillus spp. strains were able to produce cyclic lipopeptides surfactin, iturin A and fengycin. The characterisation of lipopeptides was studied by various analytical techniques (high-performance liquid chromatography – HPLC and matrix-assisted laser desorption/ionization time-of-flight analysis for molecular mass determination – MALDI-TOF/MS). These methods confirmed co-production of three lipopeptides – surfactin, iturin A and fengycin by Bacillus amyloliquefaciens.

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Available abstract

In this study we isolated and identified the lipopeptides produced by Bacillus amyloliquefaciens strains 1/6k and 4/9, which were isolated from Adriatic Sea. Lipopeptides belong to the family of cyclic biosurfactants representing a group of surface active compounds produced by various microorganisms. Studied Bacillus spp. strains were able to produce cyclic lipopeptides surfactin, iturin A and fengycin. The characterisation of lipopeptides was studied by various analytical techniques (high-performance liquid chromatography – HPLC and matrix-assisted laser desorption/ionization time-of-flight analysis for molecular mass determination – MALDI-TOF/MS). These methods confirmed co-production of three lipopeptides – surfactin, iturin A and fengycin by Bacillus amyloliquefaciens.

Key concepts: Bacillus amyloliquefaciens, Surfactin, Lipopeptide, Bacillus (shape), Chromatography, Chemistry, Bacillus subtilis, High-performance liquid chromatography

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