INFLUENŢA EXTRACTULUI DE AMINOACIZI ŞI OLIGOPEPTIDE DE ORIGINE CIANOBACTERIANĂ DIN BIOMASA SPIRULINA (ARTHROSPIRA) PLATENSIS ASUPRA CREŞTERII ŞI LIPIDOGENEZEI TULPINII STREPTOMYCES FRADIAE CNMN-Ac-11

Yulia BEREZIUK Institutul de Microbiologie și Biotehnologie al AȘM

Abstract

THE INFLUENCE OF AMINO ACID AND OLIGOPEPTIDE CYANOBACTERIAL EXTRACT BIOMASS SPIRULINA (ARTHROSPIRA) PLATENSIS ON GROWTH AND LIPIDOGENESIS OF STRAIN STREPTOMYCES FRADIAE CNMN-Ac-11 

Was studied ability of a strain Streptomyces fradiae CNMN-Ac-11 allocated from soils of the central part of Moldova to accumulate biomass and to synthesize lipids depending on composition of medium. As additive to the main medium used the extract of amino acids and oligopeptides from Arthrospira platensis. An increasing yield of biomass of the studied strain (by 18.2%) when grown on medium in the presence of the extract at a concentration of 0.1%/V, and the amount of the sterol fraction in the biomass of the strain grown in the medium supplemented with the extract at all tested concentrations (by 7.0-58.51% in comparison with control). 

Keywords: Streptomyces, medium, extract of amino acids and oligopeptides, biomass, lipids.