Production of selenium yeast by active dry yeast
WANG Sui-lou
Abstract：The selenium-rich and selenium-tolerant ability of active dry yeast(ADY) and i ts conditions of bioconversion of inorganic selenium to the organic seleniun wer e studied. The results showed that ADY has strong selenium-rich and selenium- tolerant ability and the culture conditions have a great influence on selenium-rich ability.The concentraction of inorganic-sele nium in medium and culture time,etc., were main factors affecting bioconversion of inorganic selenium. Under the initial optimum conditions(the mash liquor of 1 2 °Be, the inorganic-selenium concentraction of 15 mg/L,medium of 60 mL in a 2 50 mL flask, initial pH=6.0, and culture time 30 h at 30 ℃), the dry weight of selenium yeast and the content of organic selenium in the cells as well as the r ate of se-bioconversion were 15.8 g/L,790.0 μg/g and 83.2% in proper order.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 3-6 )