2007
DOI: 10.1021/jf071596d
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Evaluation of the Inorganic Selenium Biotransformation in Selenium-Enriched Yogurt by HPLC-ICP-MS

Abstract: Selenium is an essential element in the human diet. Interestingly, there has been an increased consumption of dietary supplements containing this element in the form of either inorganic or organic compounds. The effect of using selenium as a dietary supplement in yogurt has been evaluated. For this purpose, different concentrations of inorganic Se (ranging from 0.2 to 5000 microg g(-1)) have been added to milk before the fermentation process. Biotransformation of inorganic Se into organic species has been care… Show more

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Cited by 53 publications
(42 citation statements)
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“…Our results are in line with previous studies in which selenium biotransformation was observed only when lactic acid fermentation of milk was carried out in the presence of selenite, not selenate (Alzate et al 2007). During lactic acid fermentation in the presence of selenite, organic forms selenomethylselenocysteine or selenocysteine were produced (Alzate et al 2007, 2008, Peñas et al 2012. According to the safety data sheet (Acros Organics 2009), sodium selenite will release toxic gas in contact with acids, and therefore the addition of sodium selenite into an acid-based additive can be regarded as dangerous.…”
supporting
confidence: 92%
“…Our results are in line with previous studies in which selenium biotransformation was observed only when lactic acid fermentation of milk was carried out in the presence of selenite, not selenate (Alzate et al 2007). During lactic acid fermentation in the presence of selenite, organic forms selenomethylselenocysteine or selenocysteine were produced (Alzate et al 2007, 2008, Peñas et al 2012. According to the safety data sheet (Acros Organics 2009), sodium selenite will release toxic gas in contact with acids, and therefore the addition of sodium selenite into an acid-based additive can be regarded as dangerous.…”
supporting
confidence: 92%
“…SeCys 2 (seleno-cystine, containing a di-selenide bridge) and MeSeCys (methylselenocysteine) were also the predominant organic forms of selenium detected in the Se-enriched yogurt containing Lactobacillus species (28,29).…”
Section: Discussionmentioning
confidence: 99%
“…They did not confirm that the microorganisms incorporate Se into their proteins in the form of selenomethionine. Alzate et al (2007) detected selenocysteine and Se-methylselenocysteine in their speciation studies of Se-enriched yogurt after enzymatic hydrolysis, the concentration of which increased with the amount of supplemented selenite.…”
Section: Discussionmentioning
confidence: 99%