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001-es BibID:BIBFORM035623
Első szerző:Peles Ferenc (mikrobiológia, élelmiszer-mikrobiológia, minőségügy)
Cím:Occurrence of Escherichia coli and Staphylococcus aureus on dairy farms in Hungary / Peles Ferenc, Béri Béla, Győri Zoltán, Varga László
Dátum:2011
ISSN:0362-028X
Megjegyzések:International Association for Food Protection 2011 Annual Meeting (2011)(Milwaukee, Wisconsin)
Tárgyszavak:Agrártudományok Élelmiszertudományok idézhető absztrakt
milk
Escherichia coli
Staphylococcus aureus
Megjelenés:Journal of Food Protection. - 74 (2011), p. 159-160. -
További szerzők:Béri Béla (1951-) (agrármérnök) Győri Zoltán (1948-) (vegyész) Varga László
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM010016
Első szerző:Peles Ferenc (mikrobiológia, élelmiszer-mikrobiológia, minőségügy)
Cím:Occurrence of Staphylococcus aureus in milk samples of cows with mastitis / Peles Ferenc, Varga László, Szigeti Zsuzsa, Béri Béla, Szabó András
Dátum:2008
Tárgyszavak:Természettudományok Biológiai tudományok előadáskivonat
Megjelenés:A Magyar Mikrobiológiai Társaság 2008. évi Nagygyűlése és a XI. Fermentációs Kollokvium : Absztraktfüzet / [közread.] Magyar Mikrobiológiai Társaság. - p. 63.
További szerzők:Varga László Máthéné Szigeti Zsuzsa (1976-) (biológus-ökológus) Béri Béla (1951-) (agrármérnök) Szabó András (1947-) (biológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM001077
Első szerző:Peles Ferenc (mikrobiológia, élelmiszer-mikrobiológia, minőségügy)
Cím:Characterization of Staphylococcus aureus strains isolated from bovine milk in Hungary / F. Peles, M. Wagner, L. Varga, I. Hein, P. Rieck, K. Gutser, P. Keresztúri, G. Kardos, I. Turcsányi, B. Béri, A. Szabó
Dátum:2007
Megjegyzések:Staphylococcus aureus is a major foodborne pathogen due to its capability to produce a wide range of heat-stable enterotoxins. The primary purpose of this research was to characterize S. aureus isolates recovered from mammary quarter milk of mastitic cows and from bulk tank milk produced on Hungarian dairy farms of different sizes. Macrorestriction analysis of chromosomal DNA from S. aureus isolates was performed using the restriction enzyme SmaI followed by pulsed-field gel electrophoresis (PFGE). The prevalence rates of nine S. aureus enterotoxin genes (sea, seb, sec, sed, see, seg, seh, sei, and sej) and of the toxic shock syndrome toxin 1 gene (tst) were determined by multiplex polymerase chain reaction (PCR). The bulk tank milks of 14 out of 20 farms were contaminated with S. aureus at levels of up to 6.0x103 CFU/ml. Farm size had no significant effect (PN0.05) on the S. aureus counts in bulk milk. The prevalence rates of penicillin resistance were 88.9% and 20.0% among the S. aureus recovered from mastitic quarter milk and bulk tank milk, respectively. After phenotypic characterization, a total of 59 S. aureus isolates were selected for genotyping. PFGE analysis revealed 22 distinct pulsotypes, including 14 main types and 8 subtypes, at a similarity level of 86%. Only one or two main types were observed on each of the farms tested, indicating a lack of genetic diversity among S. aureus isolates within farms, and there were only two pulsotypes which occurred on more than one farm. The PFGE patterns showed genetic relatedness between the S. aureus strains recovered from quarter milk and bulk milk on two large farms, implying that on farms having a high number of mastitic cows, S. aureus from infected udders may contaminate bulk milk and, subsequently, raw milk products. Sixteen (27.1%) of the S. aureus isolates tested by multiplex PCR were found to be positive for enterotoxin genes, with 15 of them carrying just one gene and one strain carrying two genes (seg and sei). The most commonly detected toxin genes were seb, sea, and sec, whereas none of our isolates possessed the see, seh, sej, or tst genes. On 75% of the dairy farms surveyed, no enterotoxigenic staphylococci were recovered from either mastitic quarter milk or bulk tank milk.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok Állatorvosi tudományok idegen nyelvű folyóiratközlemény külföldi lapban
milk
Enterotoxin gene
Staphylococcus aureus
PFGE
PCR
Pulsotype
Megjelenés:International Journal of Food Microbiology. - 118 : 2 (2007), p. 186-193. -
További szerzők:Wagner, Martin Varga László Hein, Ingeborg Rieck, Petra Gutser, Klaus Keresztúri Péter (1975-) (biológus-ökológus) Kardos Gábor (1974-) (szakorvos, klinikai mikrobiológus) Turcsányi Ibolya Béri Béla (1951-) (agrármérnök) Szabó András (1947-) (biológus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM087734
035-os BibID:(cikkazonosító)1163 (WoS)000557053000001 (Scopus)85088409955
Első szerző:Tonamo, Andualem (milk microbiologist)
Cím:Bacteriological Quality of Raw Ovine Milk from Different Sheep Farms / Tonamo Andualem, Komlósi István, Varga László, Czeglédi Levente, Peles Ferenc
Dátum:2020
ISSN:2076-2615
Megjegyzések:The aim of this study was to evaluate the bacteriological quality of sheep milk produced by four farms in Eastern Hungary. In addition to individual raw milk and bulk tank milk samples, the udder surface of ewes was also tested for bacterial counts. A total of 164 samples were collected during regular milking sessions. The results showed that bulk tank milk samples contained up to 10,000 times as many bacteria as did their individual raw milk counterparts. The mean concentrations of bacteria in bulk tank milk on two farms exceeded regulatory limits. Additional research needs to be done to clarify this. The primary purpose of this research was to examine the bacteriological properties of raw ovine milk produced by Merino, Tsigai, Dorper, Lacaune, and British Milk Sheep flocks on four sheep farms located in the eastern part of Hungary. In addition to individual raw milk (IRM) and bulk tank milk (BTM) samples, the udder surface (US) of ewes was also tested for bacteriological quality. A total of 77 US, 77 IRM, and 10 BTM samples were collected in the early morning during regular milking sessions. The samples, kept cooled at temperatures below 4 degrees C, were delivered to the microbiological laboratory and were examined immediately. The relatively low numbers of bacteria in both US and IRM samples reflected good housing conditions of ewes kept on the four farms studied. However, BTM samples had up to 3.5-4.0 log(10)CFU/mL higher mean bacterial counts than their IRM counterparts, and the mean levels of bacteria in BTM on two farms even exceeded the regulatory limit of 6.18 log(10)CFU/mL. Further studies need to be performed to clarify this issue.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Animals. - 10 : 7 (2020), p. 1-9. -
További szerzők:Komlósi István (1960-) (agrármérnök) Varga László Czeglédi Levente (1977-) (agrármérnök) Peles Ferenc (1979-) (mikrobiológia, élelmiszer-mikrobiológia, minőségügy)
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