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1

Carotenes content in carrot roots (Daucus carota l.) as affected by cultivation and storage

100%
Fikselova M., Marecek J., Mellen M.
Vegetable Crops Research Bulletin
|
2010
|
tom 73
2
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Antioxidant effect of natural honeys affected by their source and origin

100%
Mellen M., Fikselova M., Medelova A., Hascik P.
Polish Journal of Food and Nutrition Sciences
|
2015
|
tom 65
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nr 2
In purpose to examine the antioxidant activity of 15 natural honeys of different origin ABTS method was used, total phenol content and dry matter content of honey samples were determined. Honeys were collected from different locations of Slovakia, Poland and Serbia and were represented as monofl oral and multifl oral samples (10) which originated from Poland and Slovakia, forest samples (4) originated from Serbia and honeydew honey. Average values of antioxidant activity observed in samples of honeys ranged from 0.62 to 4.63 mmol/kg. The highest antioxidant activity was detected in buckwheat honey and the lowest was shown in acacia honey. By observing the impact of individual honey samples on antioxidant activity it was found that the sample had a highly statistically signifi cant effect. 10 homogeneous groups which varied in the antioxidant activity among each other were established by all 15 samples. Antioxidant activity of honeys could be a positive infl uence factor in terms of honey differentiation, especially in the case of the forest honeys collected from different places. Monofl oral and multifl oral honeys (10) established 5 homogenous groups, but in the case of several multifl oral honeys which originated from different places of Poland and Slovakia no statistically signifi cant differences were found.
3

Antioxidant status of lambs fed on diets supplemented with selenite or Se-yeast

88%
Boldizarova K., Gresakova L., Faix S., Mellen M., Leng L.
Journal of Animal and Feed Sciences
|
2005
|
tom 14
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nr 2
4

The effects of supplementing sodium selenite and selenized yeast to the diet for laying hens on the quality and mineral content of eggs

76%
Arpasova H., Petrovic V., Mellen M., Kacaniova M., Cobanova K., Leng L.
Journal of Animal and Feed Sciences
|
2009
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tom 18
|
nr 1
5

Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast

76%
Petrovic V., Boldizarova K., Faix S., Mellen M., Arpasova H., Leng L.
Journal of Animal and Feed Sciences
|
2006
|
tom 15
|
nr 3
435-444
The experiment was designed to investigate the effects of feed supplementation with selenite or selenized yeast on parameters of antioxidant and selenium status of laying hens. Hens of laying breed Shaver Starcross 288 were randomly divided at the day of hatching into 4 groups and fed for 9 months on diets which differed only in amounts or forms of selenium supplemented. Group 1 was fed the basal diet (BD) with native Se content 0.1 mg.kg-1 DM. Groups 2 and 3 were fed the BD diets supplemented with equivalent Se dose 0.4 mg.kg-1 DM of either sodium selenite or Se-yeast, respectively. The diet for group 4 was supplemented with Se-yeast at Se dose 0.9 mg.kg-1 DM. The activities of glutathione peroxidase (GPx) in blood and tissues of liver, kidney and duodenal mucosa were significantly increased by Se supplementation, but no differences due to form or dose of Se were observed. Both Se sources resulted in significant reduction of superoxide dismutase (SOD) activity in erythrocytes. Malondialdehyde (MDA) content in kidney tissue was reduced by both Se sources, but its production in liver tissue was inhibited by Se-yeast only. Selenium supplementation did not influence the levels of MDA and -SH groups in plasma. Altrough both Se significantly raised Se concentrations in blood and tissues of liver, kidney, spleen, hearth and duodenal mucosa, significant Se deposition into muscles appeared in hens given Se-yeast only. The presented results suggest that Se-yeast is more effective in maintenance of antioxidant and selenium status of laying hens than selenite.
6

Extretion routes and distribution of selenium in sheep tissues after selenite loading

76%
Petrovic V., Boldizarova K., Faix S., Kowalczyk J., Czauderna M., Mellen M., Leng L.
Journal of Animal and Feed Sciences. Supplement
|
2005
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tom 14
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nr 1
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