rok 2007 - Fakulta chemickej a potravinárskej technológie

D. VEGA Project No 11/4452/07 Development of new immobilized biooxidation systems based
on hyperoxygenated whole cell / enzyme biocatalysts for novel white biotechnologies (Michal
Rosenberg)
The project has an ambition to bring new knowledge regarding the binding of organic contaminants of the
chlorophenol series (predominantly pentachlorophenol - PCP) onto inorganic and organic parts of the tested
sorbent – organomineral complex (OMC, produced by binding humic acids onto zeolite) and to study sorption
abilities of humic acids isolated from different sources (e.g. lignite and oxyhumolite) for detoxification purposes in
contaminated soil. The potential effect of humic acids on improvement of biodegradation will be studied as well.
Immobilization processes observed in natural soil are of a great environmental importance as they may lead to a
considerable reduction in the bioavailability and, as a result, of a toxicity of xenobiotics, e.g. pesticides or their
degradation products. This may then lead to facilitation of biodegradation after a subsequent release of the bound
chlorophenols due to the activity of microorganisms and decrease of pH (acid rains). Investigation of the effect of
chlorophenols on microbial cells of the indigenous bacterial consortium or bioaugmented bacteria and ecotoxicity
of soil will be also included in the project because presence of these compounds markedly influences
biodegradation ability, survival, and colonization of microorganisms at their application in bioremediation
technologies during decontamination.
Project duration: from 1.1.2007 to 31.12.2009
E. National project 2004 ŠP 26 028 0C 05 The use of domestic materials and resources –
Phytosterols and fatty acid derivatives (Milan Čertík, Michal Rosenberg)
The aim of the project is focused on evaluation of co-products from rape seed oil and other industrial resources
for technological preparation of phytosterols and fatty acid derivatives. The project is tended to optimization of
isolation and purification processes for obtaining of phytosterols. The project will also solve the possible to
prepare fatty acid derivatives for their use in food and pharmaceutical industry.
Project duration: from 01.07.2004 to 30.9.2007
F. APVT project 99-005002 Influence of sugar beet on structure and bonding potential of
paper. part: Modification and characterization of sugar beet (Michal Rosenberg)
The project is coordinated by VUPC, a.s. Bratislava. Research will be focussed on exploitation of sugar beet pulp
in paper industry as replacement of fibrous raw materials and additives for strength properties increase. Sugar
beet pulp with optimal degree of accompanying compounds elimination and resulting in good development of fibre
bonding surface will be prepared.The influence on refining (beating) process and degree of wire paper machine
water pollution on transfer and strength properties of paper with addition of modified sugar beet pulp and cationic
polymers to primary and recycled fibres will be evaluated
Project duration: from 1.5.2006 to 31.12.2008
G. National project 2004 ŠP 26 028 0C 05 Complex evaluation of plant sources, part 1.4. Rare
saccharides and complex valudation of beet slice (Michal Rosenberg)
The project is coordinated by Research Institute of Food. Verification of methods used for preparation of L-
arabinose from beet slice is the main aim of the project. The other sugars obtained from this process will be used
as energy source for yeast biomass preparation with high content of trehalose. Purification methods for sugar
preparation will be verify.
Project duration: from 01.01.2005 to 30.9.2007
H. APVV Project No. 20-014105 Using the microorganisms living with the higher plants to
alternative production of anticancer taxanes, phytochemicals of yew-tree Taxus sp. (Mária
Šturdíková)
Project is oriented to the investigation of anticancer compounds taxane family by prokaryotic Actinomycetes
isolated from rhizoidal system and tissues of the higher plant Taxus. Verification of taxane production by
Actinomycetes in conditions for alternative biosynthetic pathway of strains, there those is acknowledged
production of these compounds by chemical analysis and by test with specific taxane antibodies. Optimalization
conditions for growth organism and stimulation of taxane biosynthesis, because microorgsanisms isolated from
natural sources synthetize bioactive secondary metabolites as minorite metabolites. Study of effect of culture
media composition, biotic and abiotic factors and specific inhibitors to reach the higher taxane products level in
culture medium of isolated strain.
76