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Bibliographic record number: 461551

Journal

Authors: Stehlik-Tomas, Vesna; Mrvčić, Jasna; Stanzer, Damir; Grba, Slobodan
Title: The Influence of Different Factors on Manganese Incorporation into Saccharomyces cerevisiae
Source: Agriculturae Conspectus Scientificus (1331-7768) 74 (2009), 4; 327-332
Paper type: article
Keywords: manganese; Saccharomyces cerevisiae; feed supplement
Abstract:
Yeast biomass as well as biomass enriched with trace minerals have been demonstrated to be useful in improving animal health and growth performance. In this work, process for the production of Saccharomyces cerevisiae biomass enriched with manganese, a microelement with antioxidant properties in the form of high bioavailable Mn-protein complex, has been studied. The influences of media composition, Mn2+ concentration and Mn salt were investigated in shaken cultures. The change of biomass and ethanol yields was not observed in molasses media with addition of Mn, while in sucrose media the decrease was observed at Mn2+ concentrations higher than 0.8 mM (added as sulphate) and 0.2 mM (added as chloride). It was established that aeration mode (anaerobic, shaken flask or aerated culture) influences amount and dynamic of Mn incorporation into the yeast biomass, and that this incorporation was S. cerevisiae strain dependent. The Fourier transform infrared (FTIR) spectrophotometry on blank and Mn loaded biomass suggested that carboxyl groups, N-H groups of secondary amide, and sulfonate groups are involved in mechanism of manganese binding.
Project / theme: 058-0583444-3483, 058-0580477-0374
Original language: ENG
Citation databases: Scopus
Category: Znanstveni
Research fields:
Biotechnology,Food processing technology
URL cjelovitog rada:
Journal in electronic form only:: NE
Google Scholar: The Influence of Different Factors on Manganese Incorporation into Saccharomyces cerevisiae
Contrib. to CROSBI by: jmrvcic@pbf.hr (jmrvcic@pbf.hr), 6. Tra. 2010. u 10:46 sati



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