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Authors: Mohiuddin, MD.
Keywords: Selenium; selenium yeast; Saccharomyces cervisiae; selenomethionine; supplemental selenium; selenium poisoning.
Issue Date: Apr-2009
Publisher: Chattogram Veterinary and Animal Sciences University Khulshi, Chattogram-4225, Bangladesh
Abstract: Selenium Yeast, Produced by growing select strains of Saccharomyces cerevisiac in Selenium-rich media, is a recognized source of organic. food-form Se, but the determination of its exact composition with respect to the Se species present produced confilicting results. Improved methods of analysis have since reveled it to contain 90+ % of its Se in the form of selenomethionine, the principal organic nutritional form of Se for higher animals and humans. Yeast (Saccharomyces cerevisiae ) also excellent sources of methionine . so yeast media also widely used as a protein source. This study is conducted to know the amont of organic selenium and methionine produced by the yeast ( Saccharomyces cerevisiae ).Amount of those organic selenium and methionine from yeast media estimated by chemical test.It was found that yeast media contain 3.5% methionine and 2 mg per gm of inorganic selenium. The safety record of Se yeast is excellent: During the three decades of its world-wide use as a souree of supplemental Se, no cases of Se poisoning have occurred due to dosage or formulation errors.
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