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Is Saccharomyces boulardii the same as Saccharomyces cervisiae?

April 26, 2017boulardii saccharomyces

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Is Saccharomyces boulardii the same as Saccharomyces cervisiae?

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No, S. boulardii is not S. cerevisiae. S. boulardii is a wild, tropical yeast while S. cerevisiae is commonly known as brewers or bakers yeast. Closely related to S. cerevisiae, S. boulardii is officially classified as Saccharomyces cerevisiae var boulardii Hansen CBS 5926. The two strains have different genetic make-up and enzyme profiles. Unlike S. cerevisiae, S. boulardii does not make a certain type of reproductive spore called an ascospore and does not use the sugar galactose. It is very resistant to heat and acid and secretes a number of unique physiologically active factors. Only S. boulardii has proven gastrointestinal supportive effects.