Search Results - "Belajová, Elena"

Optimization and applicability of high performance liquid chromatographic methods for quantification of patulin and ochratoxin A in fruit purées by Belajová, Elena

“…Patulin and ochratoxin A are mycotoxins generated in apples by certain strains of fungi Penicillium spp. and Aspergillus spp. Present work was aimed at…”
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Effects of pasteurisation, processing atmosphere and long-term storage on orange juice quality by Tobolková, Blanka, Belajová, Elena, Polovka, Martin, Durec, Ján

“…Pasteurisation and storage are the main causes of deterioration of orange juice quality. Their negative effects can be reduced by producing and packaging fruit…”
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Effect of oxygen scavenger screw-caps on quality of pineapple juices by Durec, Ján, Tobolková, Blanka, Belajová, Elena, Polovka, Martin, Daško, Ľubomír

“…Effect of screw-caps with oxygen scavenger bound inside the bore seal of the closure (screw-cap-O 2 S) was studied on dynamics of ascorbic acid (AA),…”
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Evaluation of qualitative changes of apple-beetroot juice during long-term storage at different temperatures by Tobolková, Blanka, Polovka, Martin, Daško, Ľubomír, Belajová, Elena, Durec, Ján

“…The effect of storage conditions on changes of pH, total soluble solids (°Brix), colour, betalains (betacyanins and betaxanthins), and 5-hydroxymethylfurfural…”
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Screening carrot varieties for biocatalytic reduction of acetophenone to 1-phenylethanol by Sitkey, V, Dočolomanský, P, Čičová, I, Čuchorová, J, Puchľová, E, Belajová, E

“…Many aroma-active compounds can be produced by means of plant-mediated reactions. Biotransformation using whole plant cells is a field of green chemistry,…”
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Possibilities of organic and conventional wines differentiation on the basis of multivariate analysis of their characteristics (EPR, UV–Vis, HPLC and AAS study) by Tobolková, Blanka, Polovka, Martin, Belajová, Elena, Koreňovská, Mária, Suhaj, Milan

“…Proving of affiliation of wine sample to either organic or conventional production system and of its geographical origin although important both for consumer…”
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Why is sea buckthorn (Hippophae rhamnoides L.) so exceptional? A review by Ciesarová, Zuzana, Murkovic, Michael, Cejpek, Karel, Kreps, František, Tobolková, Blanka, Koplík, Richard, Belajová, Elena, Kukurová, Kristína, Daško, Ľubomír, Panovská, Zdenka, Revenco, Diomid, Burčová, Zuzana

“…[Display omitted] •Ascorbic acid has a major importance in sea buckthorn.•High content of valuable bioactive compounds useful for human nutrition is…”
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Changes in colour, ascorbic acid and 5-hydrohymethylfurfural concentration in grapefruit and carrot juices during storage by Belajová, Elena, Tobolková, Blanka, Daško, Ľubomír, Polovka, Martin, Durec, Ján

“…Effect of time and temperature on ascorbic acid (AA), 5-hydroxymethylfurfural (HMF) and colour is described in grapefruit and carrot juices with pulp that were…”
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Orange juice with pulp: impact of pasteurization and storage on flavour, polyphenols, ascorbic acid and antioxidant activity by Sádecká, J, Polovka, M, Kolek, E, Belajová, E, Tobolková, B, Daško, Ľ, Durec, J

“…Effect of storage on volatile aroma compounds of orange juice with pulp of Brazilian origin processed in Slovakia was investigated during 4 months of its…”
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Retention of ochratoxin A and fumonisin B1 and B2 from beer on solid surfaces: comparison of efficiency of adsorbents with different origin by BELAJOVA, Elena, RAUOVA, Drahomira, DASKO, Lubomir

“…Fifteen solid materials with variable origin and various adsorption properties for retention of mycotoxins were tested--mineral materials, organic polymers and…”
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Single laboratory-validated HPLC methods for determination of ochratoxin A, fumonisin B1 and B2, zearalenone and deoxynivalenol in cereals and cereal-based foods by Belajova, E, Rauova, D

“…The aim of this study was to optimize analytical methods for determination of ochratoxin A (OTA), fumonisins B1 and B2 (FBI, FB2), zearalenone (ZON), and…”
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Comparison of two clean up techniques in isolation of ochratoxin A from red wine by Belajova, E.,Vyskumny Ustav Potravinarsky, Bratislava (Slovak Republic), Rauova, D.,Vyskumny Ustav Potravinarsky, Bratislava (Slovak Republic)

“…Two procedures for the extraction of ochratoxin A (OTA) from red wine - the reference clean up procedure using specific immunoaffinity column (IAC), and solid…”
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Effect of light conditions on physico-chemical properties of pineapple juice with addition of small pineapple pieces during storage by Tobolková, B., Food Research Institute, Bratislava (Slovak Republic), Durec, J., Food Research Institute, Bratislava (Slovak Republic), Belajová, E., Food Research Institute, Bratislava (Slovak Republic), Mihalíková, M., Food Research Institute, Bratislava (Slovak Republic), Polovka, M., Food Research Institute, Bratislava (Slovak Republic), Suhaj, M., Food Research Institute, Bratislava (Slovak Republic), Daško, Ľ., Food Research Institute, Bratislava (Slovak Republic), Šimko, P., Food Research Institute, Bratislava (Slovak Republic)

“…Antioxidant status, ascorbic acid concentration, 5-hydroxymethyl-2-furaldehyde (HMF) formation and total colour changes in a pineapple juice with the addition…”
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Wine Yeasts Selection: Laboratory Characterization and Protocol Review by Sidari, Rossana, Ženišová, Katarína, Tobolková, Blanka, Belajová, Elena, Cabicarová, Tereza, Bučková, Mária, Puškárová, Andrea, Planý, Matej, Kuchta, Tomáš, Pangallo, Domenico

“…Wine reflects the specificity of a terroir, including the native microbiota. In contrast to the use of Saccharomyces cerevisiae commercial starters, a way to…”
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Application of a simple and rapid pre-treatment procedure in the high performance liquid chromatographic analysis of deoxynivalenol and zearalenone in beer by Belajová, E., Food Research Institute, Bratislava (Slovak Republic), Rauová, D., Food Research Institute, Bratislava (Slovak Republic)

“…In this study, newly developed analytical methods for determination of deoxynivalenol (DON) and zearalenone (ZEA) in beer are described. Four processes for…”
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Determination of ochratoxin A and its occurrence in wines of Slovakian retail by Belajova, E, Rauova, D

“…The HPLC method using a reverse phase C18 with fluorescence detection and clean up on an immunoaffinity column (IAC) for the determination of ochratoxin A…”
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Determination of fumonisins B1 and B2 in beer by Ľubomír Daško, Drahomíra Rauová, Elena Belajová, Milan Kováč

“…The aim of this study was to investigate the contamination of beer of Slovak origin with fumonisins. A suitable analytical procedure was suggested - the limit…”
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Comparison of the suitability of derivatisation agents in HPLC - fluorescence detection analysis of fumonisins by Dasko, L, Rauova, D, Belajova, E

“…Suitability of derivatisation agents - o-phthaldialdehyde (OPA), 2-mercaptoethanol (MET), N-acetyl-L-cysteine (N-AC), 4-chloro-7-nitrobenzofurazan (NBD-Cl),…”
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Determination of ochratoxin A in beer by Ľubomír Daško, Elena Belajová, Drahomíra Rauová, Milan Kováč

“…Ochratoxin A is a very common mycotoxin which can be found rather often, predominantly in various cereal materials and in products from this type of plants…”
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Diffusion and adsorption of BaP from vegetable oils onto polyethylene terephtalate and low density polyethylene package by Sklarsova, B.(Food Research Institute, Bratislava (Slovak Republic), Simko, P.Food Research Institute, Bratislava (Slovak Republic), Simon, P.Slovak University of Technology, Bratislava (Slovak Republic). Faculty of Food and Chemical Technology, Belajova, E.Food Research Institute, Bratislava (Slovak Republic)

“…Sunflower and rapeseed oils were spiked with benzo[a](BaP) at the level of 37.1 and 29.4 micro g/kg, respectively. Then, the oils were filled into polyethylene…”
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