Selection and Study of Potent Lactose-Fermenting Yeasts |
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Authors: | W I Golubev N W Golubev |
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Institution: | (1) All-Russia Collection of Microorganisms, G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, 142290, Russia;(2) Mendeleev University Chemistry and Technology, Moscow, 125820, Russia |
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Abstract: | Whey-fermenting Kluyveromyces cultures were revealed among 105 yeast strains assimilating lactose. Eighteen strains from milk products, showing maximum potency, fermented galactose, sucrose, and raffinose, in addition to lactose. Many yeast strains fermented inulin. Most strains were resistant to cycloheximide and grew in medium containing glucose, NaCl, and ethanol at concentrations of up to 50, 11–12, and 10–12%, respectively (4°C). Three strains had mycocinogenic activity. After fermentation of whey with selected yeast strains at 30°C for 2–3 days, the ethanol concentration was 4–5%. |
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