出版社：Pakistan Society of Food Scientists and Technologists
摘要：The current study was carried out for testing the inhibitory spectrum of the metabolic extract of Saccharomyces boulardii yeast against (26) bacterial isolates. The metabolic extract of Saccharomyces boulardii yeast was obtained after growth in YEPG medium and centrifuged. The broad inhibitory spectrum of yeast extract against Gram-positive bacteria and Gram-negative bacteria assay by liquid medium method and solid medium method. The highest inhibition of Enterobacter spp. and B. cereus in the solid medium were (37) mm and (35) mm respectively when adding the inhibitory substances at (100 μL) concentration while the inhibition ratio percentage in the liquid medium was (74.2%) and (72.1%) respectively for both bacteria. Less inhibition diameter for bacteria was E. coli 6 which reaches (18) mm. after adding (100μl) concentrations, while the percentage of inhibition in the liquid medium was (26.7%).
