Characterization of Italian Cheeses Ripened Under Nonconventional Conditions
نویسندگان
چکیده
منابع مشابه
Surface microflora of four smear-ripened cheeses.
The microbial composition of smear-ripened cheeses is not very clear. A total of 194 bacterial isolates and 187 yeast isolates from the surfaces of four Irish farmhouse smear-ripened cheeses were identified at the midpoint of ripening using pulsed-field gel electrophoresis (PFGE), repetitive sequence-based PCR, and 16S rRNA gene sequencing for identifying and typing the bacteria and Fourier tra...
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Different methods of sample preparation followed by extractions with phydroxymercuribenzoate (pHMB) were used to investigate the occurrence of thiol compounds in ripened cheeses. The analysis of cheese extracts by GC coupled with PFPD, MS and olfactometry detections enabled the identification of ethyl 2mercaptopropionate (ET2MP) and ethyl 3-mercaptopropionate (ET3MP) in Munster and Camembert ch...
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An electrical apparatus for measuring moisture content was developed by our laboratory and uses dependence of electrical properties on water content in studied material. Error analysis of the apparatus was run by measuring different volumes of water in a simplified specimen, i.e. hollow plexiglass block, in order to avoid as many side-effects as possible. Obtained data were processed using both...
متن کاملOccurrence of Streptococcus macedonicus in Italian cheeses.
A new approach for the detection and enumeration of Streptococcus macedonicus in cheese was developed. The method which is based on a first screening of cheeses by a PCR assay specific for S. macedonicus followed by plating positive samples on a differential medium (SM medium) was applied to 51 samples derived from PDO and traditional Italian cheeses. Streptococcus macedonicus was found in 16 o...
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Thirty isolates of Listeria monocytogenes and 18 of L. innocua obtained from different short-ripened cheeses manufactured in Asturias (northern Spain), were compared with each other and with reference strains using serotype, phage type and pulsed-field restriction endonuclease digestion profiles analysis of the total DNA. Restriction enzymes ApaI and SmaI defined five clusters in L. monocytogen...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2007
ISSN: 0022-0302
DOI: 10.3168/jds.2006-654