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The effects of some compounds of Mn(II) and Zn(II) on the multiplication of wine yeast and biosynthesis of carbohydrates in the biomass

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Author(s): Agafia USATÎI | Oleg CHISELITA | Valeriu RUDIC | Natalia CHISELITA | Elena MOLODOI | Nadejda EFREMOVA | Aurelian GULEA | Constantin TURTA | Vasile LOZAN

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XVII;
Issue: 2;
Start page: 306;
Date: 2010;
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Keywords: Saccharomyces cerevisiae | multiplication | carbohydrates | compounds of Mn (II) and Zn (II)

ABSTRACT
The aim of investigation was to establish the influence of sulphates, acetates and coordination compounds of Mn(II) and Zn(II) as stimulators of the multiplication and growth of wine yeasts strain Saccharomyces cerevisiae CNMN-Y-20 and inducers of carbohydrate biosynthesis in biomass with the following elaboration of new procedures for directed carbohydrate biosynthesis. The study has been revealed that compounds MnSO4•4H2O, [Mn2Ac(2PyTCH)-1,5-Bis(piridin)tiocarbohidrazid-dimanganese-acetate] and ZnLP-2 in optimal concentrations can be recommended as effective regulators of the yeast Saccharomyces cerevisiae CNMN-Y-20 multiplications, as well as compounds [Mn(Gly)2]Cl2, (CH3COO)2Zn and ZnLP-2 in established concentrations - of the carbohydrates biosynthesis in the biomass of studied wine yeast strain. Stimulatory properties of studied compounds of Mn2+ and Zn2+ on carbohydrate biosynthesis in biomass of Saccharomyces cerevisiae CNMN-Y-20 can be explained both by the action of metal and by the nature of the ligand. The obtained biomass of wine yeast strain with high content of carbohydrates can be utilized for the obtaining of new bioproducts with the following application in the field of medicine and cosmetology.

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