Okratoksin A u grožđu i vinu

undergraduate thesis

• Title (english): Ochratoxin A in grapes and wine
• Author: Jelena Pešić
• Mentor: Mara Banović (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); (Laboratory for Technology and Analysis of Wine); Zagreb
• Defense date and country: 2017-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

U ovom radu izneseni su rezultati različitih istraživanja o prisutnosti okratoksina A u grožđu i vinu. Okratoksin A je mikotoksin kojeg proizvode neke plijesni roda Aspergillus (A. ochraceus i A. carbonarius) i Penicillium (P. verrucosum). Konzumacija ovog mikotoksina može biti uzrok različitim patologijama kod ljudi i životinja. Najčešći uzročnik kontaminacije vina okratoksinom A su plijesni roda Aspergillus. Prilikom primarne prerade grožđa, tijekom muljanja, okratoksin A iz micelija plijesni prelazi u mošt. Upravo zbog razlike u procesu prerade vina, tj. dužem trajanju kontakta bobice s moštom rizik kontaminacije okratoksinom A znatno je veći u crnim nego u bijelim vinima. Sva dosadašnja istraživanja pokazala su da su vina južnih, toplijih krajeva bitno izloženija riziku kontaminacije. U Europi je u mediteranskom području kontaminacija okratoksinom A česta, dok je u vinima sjevernijih dijelova rjeđe zabilježena.

Abstract (english)

This paper presents the results of various studies on the presence of ochratoxin A in grapes and wine. Ochratoxin A is a mycotoxin produced by some Aspergillus (A. ochraceus and A. carbonarius) and Penicillium (P. verrucosum) mold. Consumption of this mycotoxin may be the cause of various pathologies in humans and animals. The most common cause of wine contamination with ochratoxin A is the Aspergillus mold. During primary grape processing, pressing of the grapes, ochratoxin transfers from mold mycelia into grape juice. Because of the difference in the wine processing, the longer duration of the contact with berries, the risk of contamination with ochratoxin A is considerably higher in red than in white wines. All previous studies have shown that wines from southern, warmer regions are significantly more exposed to risk of contamination. In Europe, contamination with ochratoxin A is common in the Mediterranean area, while it is rarely found in the vineyards in the northern parts.

• Keywords: grožđe; mikotoksini; okratoksin A; plijesni; vino
• Keywords (english): grapes; mycotoxins; mold; ochratoxin A; wine
• Language: croatian
• URN:NBN: urn:nbn:hr:159:021646
• Study programme: Title: Food Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-09-11 09:51:35