master's thesis
Impact of Fusarium graminearum infection levels of wheat malt on deoxynivalenol content during beer production

Martina Horvat (2011)
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Process Engineering
Sub-department of Bioprocess Engineering
Metadata
TitleUtjecaj stupnja kontaminacije pšeničnog slada s plijesni Fusarium graminearum na udjel deoksinivalenola tijekom proizvodnje piva
AuthorMartina Horvat
Mentor(s)Vinko Krstanović (thesis advisor)
Abstract
Cilj istraživanja bio je ustanoviti utjecaj početnog stupnja kontaminacije pšenice s plijesni F. graminearum na udjel deoksinivalenola (DON) u pivu i nusproizvodima vrenja, te utjecaj pojedine tehnološke operacije u procesu proizvodnje pšeničnog piva na koncentraciju DON-a. Provedeno je ukomljavanje uzoraka pšeničnog slada s različitim stupnjem kontaminacije s plijesni F. graminearum (0,5% - 12%), te fermentacija dobivenih uzoraka sladovine. Provedena je mikrobiološka i toksikološka analiza uzoraka slada (osušeni i stabilizirani slad), te toksikološka analiza sladovine, tropa, piva i otpadnog kvasca. Pri mikrobiološkoj analizi slada određivan je udjel zrna kontaminiranog s plijesni F. graminearum, dok je toksikološka analiza uključivala određivanje koncentracija DON-a u svim navedenim uzorcima. Rezultati toksikološke analize upuduju na zaključak da je DON stabilan tijekom proizvodnje piva, te prelazi iz slada u konačni proizvod tj. pivo, te u nusproizvode, trop i otpadni kvasac. Nadalje, stupanj kontaminacije značajno utječe na udjel DON-a u svim uzorcima, pri čemu najvedu koncentraciju DON-a imaju uzorci s najvedim početnim stupnjem kontaminacije.
Keywordswheat malt beer contamination level molds Fusarium graminearum deoxynivalenol
Parallel title (English)Impact of Fusarium graminearum infection levels of wheat malt on deoxynivalenol content during beer production
Committee MembersTomislav Klapec
Vinko Krstanović
Jelka Pleadin
Daliborka Koceva Komlenić
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Lower level organizational unitsDepartment of Process Engineering
Sub-department of Bioprocess Engineering
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineBIOTECHNICAL SCIENCES
Food Technology
Engineering
Study programme typeuniversity
Study levelgraduate
Study programmeFood Engineering
Academic title abbreviationmag. ing. techn. aliment.
Genremaster's thesis
Language Croatian
Defense date2011-09-30
Parallel abstract (English)
Objectives of this study were to establish the impact of initial F. graminearum contamination level of wheat on deoxynivalenol (DON) content in beer and its byproducts and the influence of applied unit operations during wheat beer production process on DON concentration. Malt samples contaminated with different initial F. graminearum contamination levels (0.5 – 12%) were subjected to mashing procedure followed by fermentation procedure of wort samples. Wheat samples, dry malt (stabilized), wort, beer and byproducts (spent grain and yeast) underwent microbiological and toxicological analyses which determined the share of F. graminearum contaminated grain and DON concentrationResults of toxicological analyses show that DON was stable during beer production and that the toxin was transferred from malt to wort as well as the byproducts such as spent grain and yeast. Results also indicate that wheat with higher initial F. graminearum contamination level gives malt with higher DON concentration.
Parallel keywords (Croatian)pšenica slad pivo stupanj kontaminacije plijesni Fusarium graminearum deoksinivalenol
Resource typetext
Access conditionAccess restricted to students and staff of home institution
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:109:904145
CommitterSanda Hasenay