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001-es BibID:BIBFORM090079
Első szerző:Petróczki Flóra Mária (élelmiszer-biztonsági és -minőségi mérnök)
Cím:Microbiological status of bulk tank milk and different flavored gomolya cheeses produced by a milk producing and processing plant / Flóra Mária Petróczki, Benjamin Kojo Woode, Gréta Törős, Noémi Stella Nagy, Béla Béri, Ferenc Peles
Dátum:2018
ISSN:1587-1282
Megjegyzések:The microbiological quality of milk is important not only for food safety, but it can also influence the quality of dairy products. In this study, our aim was to assess the microbiological status of the bulk milk of a milk-producing farm, and some natural and flavored (garlic, dill, onion) gomolya cheeses made from pasteurized milk produced by their own processing plant. We determined the number of coliform bacteria, Escherichia coli, Staphylococcus aureus, and molds of three milk and eight cheese samples. The tests were conducted between July and September, 2017. In bulk milk, the mean coliform count was 3.83?0.17 log10 CFU/ml; the mean E. coli count was 1.38?0.14 log10 CFU/ml; the mean mold count was 3.74?1.30 log10 CFU/ml; and the S. aureus count was <1.00 log10 CFU/ml, respectively. The mean coliform count in gomolya cheeses was 3.69?1.00 log10 CFU/g; the mean E. coli count was 2.63?0.58 log10 CFU/g; the mean S. aureus count was 3.69?1.35 log10 CFU/g and the mean mold count was 1.74?0.37 log10 CFU/g. The amount of coliforms detected in different flavored gomolya cheeses were significantly different (P<0.05). More than 10 CFU/g of E. coli was found only in the dill flavored cheeses, and S. aureus was found only in dill (3.66?1.86 log10 CFU/g) and onion (3.71?0.52 log10 CFU/g) flavored gomolya cheeses. Based on the obtained results, it was found that the amount of coliform bacteria and E. coli in bulk milk exceeded the limit set in regulation of the Hungarian Ministry of Health (MoH) 4/1998 (XI. 11.) and the amount of S. aureus was below the limit. For gomolya cheeses, the S. aureus count exceeded the limit. The amount of coliform bacteria remained above the limit in cheeses, except for the garlic flavored gomolya cheese. In cheeses, a larger E. coli count was detected than in the bulk milk, but there is no specific limit for cheeses in the regulation. The mold count exceeded the limit specified in the regulation in cheeses, but a lower value was detected relative to milk. The results show that, in the case of bulk milk and gomolya cheeses, certain detected quantities exceeded the limit values set forth in regulation of MoH 4/1998 (XI. 11.). The results indicate an inadequate microbiological state of the raw material and the finished products. The reasons for these are due to reduced technological hygiene or the inappropriate handling of raw material and finished products. In this study, we have summarized the results of our preliminary studies, which can provide a basis for further hygiene studies.
Tárgyszavak:Műszaki tudományok Bio-, környezet- és vegyészmérnöki tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Agrártudományi közlemények = Acta agraria Debreceniensis. - 75 (2018), p. 73-78. -
További szerzők:Kojo Woode, Benjamin Törős Gréta (1991-) (tanszéki mérnök/élelmiszerbiztonsági- és minőségi mérnök) Nagy Noémi Stella Béri Béla (1951-) (agrármérnök) Peles Ferenc (1979-) (mikrobiológia, élelmiszer-mikrobiológia, minőségügy)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00008
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