Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Błażejak S. , Duszkiewicz-Reinhard W. , Gniewosz M. , Rostkowska-Demner E. , Domurad E. 2002. THE STUDY OF SACCHAROMYCES CEREVISIAE BREWERY YEAST STRAIN CAPACITY OF BINDING WITH MAGNESIUM IN DYNAMIC CONDITIONS, EJPAU 5(2), #03.
Available Online: http://www.ejpau.media.pl/volume5/issue2/food/abs-03.html

ABSTRACT

In this research, the No. 1 Sacharomyces cerevisiae brewery yeast strain capacity to bind the Mg²⁺ ions was studied. The yeast were cultivated in dynamic conditions in the YPD medium enriched with the MgSO₄ · 7H₂O or MgCl₂ · 6H ₂O magnesium salts. The salts were being added in such an amount, to make the sheer element content in the medium amounting to 0.25 g · dm^-3; 0.5 g · dm^-3 or 1.25 g · dm^-3. The YPD medium was enriched with magnesium ions at the beginning of the cultivation or in the end of the logarithmic phase of yeast growth. In order to evaluate the durability of bonds of Mg²⁺ ions with brewery yeast cells, the magnesium content was indicated in the centrifuged yeast biomass that had and had not been washed with deionized water. The studied strain proved its capacity of permanent bonds with magnesium ions originating from the experiment

Key words: bio-elements; metal proteins; bioplex; magnesium; Saccharomyces cerevisiae.

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