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master's thesis
Određivanje hlapivih spojeva odgovornih za negativne mirise vina
Zagreb: University of Zagreb, Faculty of Agriculture, 2016. urn:nbn:hr:204:677044
Filipović-Grčić, Mirna
University of Zagreb
Faculty of Agriculture
Microbiology

Institutional repository: Repository Faculty of Agriculture University of Zagreb

Cite this document

Filipović Grčić, M. (2016). Određivanje hlapivih spojeva odgovornih za negativne mirise vina (Master's thesis). Zagreb: University of Zagreb, Faculty of Agriculture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:677044

Filipović Grčić, Mirna. "Određivanje hlapivih spojeva odgovornih za negativne mirise vina." Master's thesis, University of Zagreb, Faculty of Agriculture, 2016. https://urn.nsk.hr/urn:nbn:hr:204:677044

Filipović Grčić, Mirna. "Određivanje hlapivih spojeva odgovornih za negativne mirise vina." Master's thesis, University of Zagreb, Faculty of Agriculture, 2016. https://urn.nsk.hr/urn:nbn:hr:204:677044

Filipović Grčić, M. (2016). 'Određivanje hlapivih spojeva odgovornih za negativne mirise vina', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:204:677044

Filipović Grčić M. Određivanje hlapivih spojeva odgovornih za negativne mirise vina [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2016 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:204:677044

M. Filipović Grčić, "Određivanje hlapivih spojeva odgovornih za negativne mirise vina", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:204:677044

Metadata
TitleOdređivanje hlapivih spojeva odgovornih za negativne mirise vina
Title (english)Determination of negative „off flavors“ in wine
AuthorMirna Filipović-Grčić
MentorLeo Gracin (mentor)
Committee memberLeo Gracin (predsjednik povjerenstva)
Committee memberAna Jeromel (član povjerenstva)
Committee memberEdi Maletić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Agriculture
(Microbiology)
Zagreb
Defense date and country2016-08-24, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Viticulture and Enology
Abstract
Veliki broj vina, kako crnih tako i bijelih, sadrže različite hlapive spojeve koji imaju izrazito niske osjetilne pragove. Predmet istraživanja ovog diplomskog rada bili su hlapivi spojevi koji su odgovorni za negativne mirise vina. U skupini predmetnih spojeva nalaze se: 2,4,6 trikloranisol, 2,4,6 tribromanisol, geosmin, 4 etil fenol, 4 etil guaiakol i 4 vinil fenol. S tim ciljem razvijena je metoda za analizu istih koji imaju negativan utjecaj na miris vina, te je ustanovljena prisutnost ovih spojeva u 40 vina hrvatskih proizvođača od čega 30 crnih i 10 bijelih. Razvijena metoda je kvantitativna plinska kromatografska metoda unutarnjeg standarda uz SPME (mikroekstrakciju na čvrstoj fazi) kao pripremu uzorka te uz detekciju na masenom detektoru. Modifikacijom i doradom razvijene metode ista bi se mogla koristiti pri daljnjim analizama i detekciji navedenih kontaminanata kako bi se u budućnosti smanjila njihova prisutnost u vinu. Upotrebom masenog detektora boljih karakteristika (kvadrupolni analizator mase) bi se prag detekcije i kvantifikacije mogao poboljšati.
Abstract (english)
Volatile compounds with low olfactory threshold are highly important for wine quality. The subject of this graduated thesis was determination of volatile compounds responsible for negative flavours in wine. Compounds of interest are: 2,4,6-trichloroanisole, 2,4,6-tribomoanisol, geosmin, 4-ethylphenol, 4-ethylguaiacol and 4-vinylphenol. SPME-GC-MS method was developed for analysing these compounds and they were identified in 40 samples of wines produced by Croatian winemakers, 30 red and 10 white. The developed method was quantitative gas chromatography internal standard method with the sample preparation using SPME (solid phase microextraction) and detection using mass detector. Further modification and development of this method, such as use of more powerful mass detector (quadrupole), which would improve limits of detection and quantification, could help detecting these undesirable compounds and limiting their presence in wine.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:204:677044
Study programmeTitle: Agroecology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologija (magistar/ magistra inženjer/inženjerka agroekologija)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-12-01 10:45:36