Sandi Orlic | Ruder Boskovic Institute (original) (raw)

Papers by Sandi Orlic

World Mycotoxin Journal

Penicillium nordicum is the main ochratoxin A (OTA)-producing fungal species isolated from artisa... more Penicillium nordicum is the main ochratoxin A (OTA)-producing fungal species isolated from artisanal sausages of different areas of Italy and other European countries. P. nordicum grows on and produces OTA in the sausage casing, thereby posing a health risk to Italian consumers, who commonly eat both the meat and casing of artisanal sausages. Different methods have been proposed to eliminate OTA and P. nordicum on the casings, including brushing, brushing and washing, the use of fungal starter cultures (Penicillium nalgiovense) and gaseous ozone. The aim of this study was to compare these methods with regard to eliminating the risk of OTA contamination in sausages. Three concentrations of gaseous ozone were assessed, i.e. 0.5, 1.0 and 1.5 mg/l. Only 1.5 mg/l prevented P nordicum growth and production of OTA in sausages without influencing the physicochemical parameters and the sensory characteristic of the products. Application of this gaseous ozone concentration was then compared t...

The aim of this work was to study the infl uence of 8 autochthonous yeasts strains on the sulfur ... more The aim of this work was to study the infl uence of 8 autochthonous yeasts strains on the sulfur dioxide formation. For this purpose grape must from the Traminer, Muller Turgau and Chardonnay grapes was used. Yeast strains used were cultivated at the Department for Microbiology, Faculty of Agriculture, University of Zagreb. Five of them were H2S negative and three

Organic 3D Photonics Materials and Devices, 2007

In the last three decades several kinds of organic mixtures for holographic recording were develo... more In the last three decades several kinds of organic mixtures for holographic recording were developed in order to achieve a new class of DVD-like optical memories for high-density optical data storage. The holographic materials should satisfy the following requirements: high sensitivity to blue light, low losses, high spatial resolution and long term stability. To this aim we developed new organic

Organic Holographic Materials and Applications III, 2005

Reflection gratings have been recorded and investigated in H-PDLC materials by means of real-time... more Reflection gratings have been recorded and investigated in H-PDLC materials by means of real-time spectroscopy during the polymerization process in view of possible application in optical data storage. High spatial frequency gratings (&amp;gt;6000lines/mm) with diffraction efficiency up to 45% and index modulation over 0.01 were obtained. The effects of the shrinkage of the reflection gratings has been detected showing a

Systematic and Applied Microbiology, 2015

Biogeosciences Discussions, 2013

2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No.03TH8666), 2003

We report on different steps in exploring the physical basis of microholographic data storage. Us... more We report on different steps in exploring the physical basis of microholographic data storage. Using highly focused laser beams, localized volume storage has been demonstrated by creating micrometer-sized holographic gratings. The present work concerns a novel approach to 3D optical storage that offers a compromise by implementing holographic volume recording within the bit-oriented storage scheme of CD/DVD technology. Multilayer storage

Vugava musts were fermented in medium-toasted Croatian barrique barrels (225 L) made from Quercus... more Vugava musts were fermented in medium-toasted Croatian barrique barrels (225 L) made from Quercus petrea and Q. robur oak wood. The oak species used in this research infl uenced the specifi c change of the aroma structure of Vugava wines. During the age period the increase in the concentration of cis and trans oaklactons, guaiacol, eugenol, furfural and 5-methylfurfural was noted. Wines fermented and aged in Q. petrea barrels have higher concentrations of most volatile phenols compared to wines from Q. robur oak wood. From the organoleptic point of view this study suggested that fermentation and on the lees ageing production method in Croatian oak barrels positively infl uenced the quality of Vugava wines where best results were achieved by use of Q. petrea oak wood.

It is well known that different viticultural practices have an important influence on the quality... more It is well known that different viticultural practices have an important influence on the quality of grapes, must and wine. Aiming to examine impact of partial defoliation we were measured composition of the aromatic components in the wine of Gewurztraminer, winegrowing hills of Zagreb, subregion Prigorje-Bilogora. Partial defoliation, i.e. removing of 4 (D1) and 8 (D2) basal leaves, conducted manually at veraison and grapevines without defoliation (ND-non defoliated) were used as control. Samples for analyses were taken after filtration, stabilization and bottling of wine. It was shown that the wine made from completely sun exposed grapes (D2), were the richest in the content of free volatile terpenes (FVT) and potentially volatile terpenes (PVT) respectively.

Organic 3D Photonics Materials and Devices II, 2008

SUMMARY The use of selected yeasts for winemaking has clear advantages over traditional spontaneo... more SUMMARY The use of selected yeasts for winemaking has clear advantages over traditional spontaneous fermentation. Selection of wine yeasts is usually carried out within the Saccharomyces cerevisiae species. Yeast strains produce different amount of secondary compounds that impart specific characteristics to the wines. This suggests that it is necessary to isolate naturally occuring autochthone strains, which exhibit a metabolic profile