Jasenka Gajdoš Kljusurić

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NIRS has been applied for the analysis of dessert wine Prošek produced from dried grapes of Pošip and Plavac mali cv. in a semi-scaled fermentation. It is a fast and non-destructive analytical method that in association with chemometrics is becoming more frequently used technique. NIR spectra were measured and the relative density, alcohol content, dry(More)
The aim of the study was to evaluate the effect of gas phase plasma on phenolic compounds in pomegranate juice. The potential of near infrared reflectance spectroscopy combined with partial least squares for monitoring the stability of phenolic compounds during plasma treatment was explored, too. Experiments are designed to investigate the effect of plasma(More)
Kindergartens are public institutions in which programmes of preschool education take place for children aged one (with exceptions of 6 months old) until they start attending elementary school. Depending on the programme, children spend in kindergarten between 5 and 10 hours a day, which means that the majority of their nutritional requirements are consumed(More)
Briggs-Rauscher (BR) reaction is one of the most commonly studied oscillation reactions which has been applied for measurement of antioxidant activity of water-soluble substances. By addition of free radicals (from fruits or vegetables), there is an immediate quenching of oscillations. The reaction is followed potentiometrically and the inhibition time(More)
Total acidity was determined in thirty-seven samples of Croatian red, white and rosé wines by potentiometric titration. In order to fi nd the eff ect of the corresponding rate of the automatic titrant added, several procedures were employed. For diff erent rates of titration, the aberrances were found from 0.1 to 0.4 g L–1 for some wines. Th e value of the(More)
Poor eating and lifestyle habits of secondary school students have negative impacts on their health and academic achievement. Balanced and varied menus at boarding schools might be good educational method to change poor eating habits, and a means to incorporate official recommendations into practice. For this study, a software was employed in analysing the(More)
In this study mathematical models were created and used in diet optimization for an athlete – recreational bodybuilder for pretournament period. The main aim was to determine weekly menus that can enable conditions for the hypertrophic muscle enlargement and to reduce the fat mass in a body. Each daily offer was planned to contain six to seven meals but(More)
This study evaluates the feasibility of using near-infrared (NIR) spectroscopy as a rapid and environmentally friendly technique for validation and prediction of the total phenolic content (TPC) and antioxidant activity (AOA) indices (as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, inhibition time (IT) of the Briggs-Rauscher oscillating(More)
This work is an experimental study of the differential scanning calorimetry characterisation of polymer materials used in food packaging materials, such as polypropylene (0·03 mm), polyethylene (0·1 and 0·03 mm), poly(D-(-)-β-hydroxybutyrate) (powder), two-layered polypropylene (0·064 mm), and two-layered polypropylene with poly-vinylidene-chloride(More)
This paper describes a meal analysis that included 17 Croatian boarding schools and 668 girls and 592 boys, aged 14-18, accommodated in them that participated in the questionnaire. The aim is to compare the differences among different boarding schools in one year and to compare the changes according to the years from 1997 to 2001. During the survey several(More)
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