期刊名称:Annals of the University Dunarea de Jos of Galati. Fascicle VI : Food Technology
印刷版ISSN:1843-5157
电子版ISSN:2068-259X
出版年度:2011
卷号:35
期号:1
页码:45-53
出版社:Galati University Press
摘要:The paper presents the preparation of selenium yeast from spent brewer's yeast by using industrial nutrient medium (malt wort and sparge water). The chemical treatment of the yeast biomass was done with sodium-selenite solution. The preparation of selenium ¨C enriched Saccharomyces uvarum in different conditions of temperature, time, yeast biomass proportion and sodium-selenite concentration of the medium was analysed. Using a culture medium supplemented with 30¨C180 ¦Ìg/ ml sodium-selenite results in total selenium accumulation in the range of 0.6¨C2.2 mg/g for malt wort and 0.4¨C1.6 mg/g for sparge water and in organic selenium accumulation in the range of 0.6¨C1.5 mg/g for malt wort and 0.3¨C0.9 mg/g for sparge water measured by ICP- MS method