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Projects / Programmes source: ARIS

VPLIV TEHNOLOšKIH POSTOPKOV NA OHRANJANJE AROMATSKEGA POTENCIALA V TEHNOLOGIJI PRIDELAVE VIN (Slovene)

Research activity

Code Science Field Subfield
4.06.02  Biotechnical sciences  Biotechnology  Bio-engineering 

Code Science Field
4.04  Agricultural and Veterinary Sciences  Agricultural biotechnology 
Evaluation (rules)
source: COBISS
Researchers (23)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  16373  PhD Helena Baša Česnik  Chemistry  Researcher  2009 - 2012  905 
2.  17919  PhD Dejan Bavčar  Plant production  Researcher  2009 - 2012  296 
3.  06110  PhD Marin Berovič  Biotechnology  Head  2009 - 2012  748 
4.  11243  PhD Štefan Čelan  Chemical engineering  Researcher  2009 - 2012  301 
5.  21613  PhD Franc Čuš  Plant production  Researcher  2009 - 2012  373 
6.  32352  Vitoslava Domiter    Technical associate  2010 - 2012 
7.  14429  PhD Roman Glaser  Veterinarian medicine  Researcher  2009 - 2012  103 
8.  08340  PhD Andrej Holobar  Chemistry  Researcher  2009 - 2010  80 
9.  00927  PhD Janez Hribar  Plant production  Researcher  2009  860 
10.  14980  PhD Dušan Klinar  Chemical engineering  Researcher  2009 - 2012  181 
11.  32351  Bojan Kobal  Plant production  Researcher  2010 - 2012 
12.  07906  PhD Mitja Kocjančič  Chemistry  Researcher  2009 - 2012  232 
13.  21917  Dušan Komel    Technical associate  2009 
14.  10688  PhD Tatjana Košmerl  Plant production  Researcher  2009 - 2012  1,027 
15.  25795  PhD Klemen Lisjak  Plant production  Researcher  2009 - 2012  322 
16.  12681  PhD Bojan Pahor  Control and care of the environment  Researcher  2009 - 2012  166 
17.  20043  PhD Aleksandra Pivec  Chemical engineering  Researcher  2009 - 2012  107 
18.  05767  PhD Marjan Simčič  Plant production  Researcher  2009  438 
19.  21399  PhD Andreja Vanzo  Plant production  Researcher  2009  249 
20.  05733  PhD Rajko Vidrih  Plant production  Researcher  2009  748 
21.  07440  PhD Mojmir Wondra  Plant production  Researcher  2009 - 2012  326 
22.  19640  PhD Emil Zlatić  Plant production  Researcher  2009  154 
23.  17800  Zdenka Zupančič    Technical associate  2009 
Organisations (5)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0103  University of Ljubljana, Faculty of Chemistry and Chemical Technology  Ljubljana  1626990  23,064 
2.  0401  Agricultural institute of Slovenia  Ljubljana  5055431  20,373 
3.  0481  University of Ljubljana, Biotechnical Faculty  Ljubljana  1626914  66,215 
4.  1421  Scientific research Centre Bistra Ptuj  Ptuj  5844975000  431 
5.  2106  PERUTNINA PTUJ reja perutnine, proizvodnja krmil, perutninskega mesa in izdelkov, trgovina in storitve d.o.o. (Slovene)  Ptuj  5141966  57 
Significance for science
• The most important results of the research project L4 2042 are as follow: SI P- 200,900,316 Patent enables the basement for new to technology procedure for increase the fermentative production of glycerol in wines. The process of introducing a new technology based introduction of thermal shocks on Saccharomyces cerevisiae inoculum cell suspension that reduce the number of inactive yeast cells, while others acquire memory effect (memory effect), allowing them to control the redox potentials during fermentation with the activation of metabolic pathways of glycerol production by affected yeast used in the fermentation process. This cells are hiper producing the glycerol as a oxireductive regulator of or the emergent situation. This procedure allows up to 80% increase in glycerol. The increased production of glycerol in wines gain fullness and commercially higher added value of the wines, allowing the importance of the market value of the final product. The process of increased production of glycerol can be applied in large scale. • The procedure has been successfully tested in pilot and production on an industrial scale. • In collaboration with the University of Auckland, New Zealand, in the determining of glutathione new method in our research based on HPLC-FD was successfully introduced and validated in practice. This method is now in regular practice in World's only five laboratories representing genuine achievement. • Using SPME GC-MS, a new method for determination of volatile thiols (4MMP, 4MMPOH, 3MH, 3MHA) that give wine, fruity and tropical character was set up and validated and applied in our research • Using SPME GC-MS, a new method for determination of metoxipirazines (IBMP, IPMP) and glutathione in samples of grapes set up and validated and applied our research. • GC-MS were used in must and wine volatile compounds, higher alcohols and esters. Acquired knowledge and the results were included in agronomic profile of vineyards as we allow that we are on the basis of this knowledge to decide the best time for harvesting. • Oxidation does not affect the metoxipirazine content. Influence of dissolved oxygen in the presence / absence of SO2 and volatile thiols, glutathione and metoxipirazine was studied. The use of sulfur dioxide was found as crucial in inactivating the oxidizing enzymes and consequently maintaining glutathione and volatile thiols. In the survey we conducted over 100 measurements of dissolved oxygen during the preparation and bottling of wine and introduce and examine ways of reducing by flushing with nitrogen. • Analysis carried out technological processes has allowed selection of the most appropriate technology and analysis needed to maintain the varietal and aromaticity, we want to maintain throughout the course of all phases of grape must, fermentation of wine with distinctive varietal aromatic character. With this system we were able to create a characterization of selection of individual vineyard and make appropriate fermentativno this technology to maintain the original abilities of varietal aromatic varieties Sauvignon More detail achievements on http://izumbib.izum.si/bibliografije/J20130312182531-L4-2042.html
Significance for the country
The most relevant achievements of the project relevant for Slovenian economy APLICATIVE RESULTS F.01 Acquisition of new practical knowledge F.02 Acquisition of new scientific knowledge F.05 Capability for introduction of new methods and technologies F.07 Incresng the quality of present product F.09 Development of new technological process/new technology F.10 Improvement of present technology process F.14 Improvement of present methods and instruments F.33 New highly applicable patent in Slovenia APLICATIVE RESULTS CONSEQUENCES G.02.06 Higher concurency capability G.02.07 Higher export participation G.02.08 Increasing the profit G.03 New technological process/new technology development G.03.01 Enlargement and update of present tehnology process G.03.03 Aplication of new technological process/new technology
Most important scientific results Annual report 2009, 2010, 2011, final report, complete report on dLib.si
Most important socioeconomically and culturally relevant results Annual report 2009, 2010, 2011, final report, complete report on dLib.si
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