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Enzymatic profiles and antimicrobial activity of the yeast Metschnikowia pulcherrima

Pawlikowska E., Kręgiel D.

Acta Innovations

2017

no. 23

17--24

The aim of the study was to characterize the antimicrobial properties of 5 strains belonging to the yeast species Metschnikowia pulcherrima. The antimicrobial activity of the strains was studied by observing pulcherrimin production and inhibition of microbial growth on YPG plates. Enzymatic assays were carried out using API ZYM tests. All strains of M. pulcherrima showed α-glucosidase and leucine arylamidase activities. The widest spectrum of activity was observed for strains NCYC2321, CCY145, and CCY149. All tested strains produced pucherrimin, and the yeasts Wickerhamomyces anomalus and Dekkera bruxellensis, the bacterium Bacillus subtilis and the moulds Penicillium chrysogenum and Aspergillus brasiliensis were the most sensitive to M. pulcherrima.