Incidence of Killer Yeast in Cane Molasses and Status of Industrial Yeasts with Respect to Killer Character

Abstract

714-717In all, 210 yeast strains isolated from molasses were screened for killer, sensitive of neutrol  character against reference killer (Saccharomyces cerevisiae MTCC427) and sensitive strains (Saccharomyces cerevisiae MTCC 473). Thirteen strain, were found to be of killer phenotype and 32 were sensitive, and rest of the isolates belonged to genera Saccharomyces, Schizosaccharomyces, Kluyveromyces, Hansenula, Pichia, Kloeckere, and Torulopsis were of neutral character. All the killer strains belonged to genera Sacchromyces. Twenty-one industrial yeast strains including distillery and between yeasts tested were found to be of sensitive character