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microbial assessment and prevalence of foodborne pathogens in natural cheeses in japan.the production and consumption of domestic natural cheese in japan is increasing year by year. more than ninety percent of domestic natural cheese is produced in hokkaido region of japan, while information on its quality and safety related to foodborne pathogens is limited. to assess the microbiological safety of domestic natural cheese, a total of 126 natural cheese samples produced in hokkaido were collected from december, 2012, to july, 2013. in addition to standard plate count (spc) and coli ...201324490148
prevalence and characteristics of listeria monocytogenes in bovine colostrum in japan.this study was conducted to determine the prevalence and characteristics of listeria monocytogenes in bovine colostrum in japan. we collected bovine colostrum samples from 210 dams from 21 dairy farms in hokkaido prefecture (japan) between march and june 2009. l. monocytogenes was detected in samples from 6 (28.6%) of the 21 farms. of the 210 samples, 16 (7.6%) were positive for l. monocytogenes. we recovered 80 l. monocytogenes isolates; 44 (55%) isolates were classified as serotype 1/2b and 36 ...201323433372
isolation and characterization of listeria monocytogenes from commercial asazuke (japanese light pickles).asazuke is a ready-to-eat japanese light pickle, mainly made of vegetables which are known to be one of the sources of listeria monocytogenes contamination. although asazuke is a popular side-dish in japan, the hazard of bacterial contamination has not been evaluated yet. in this study, we investigated the prevalence of l. monocytogenes, salmonella spp., verotoxigenic e. coli (vtec) and coliforms in 108 asazuke samples that randomly collected from supermarkets in obihiro (hokkaido prefecture, ja ...201020388574
hazard analysis of listeria monocytogenes contaminations in processing of salted roe from walleye pollock (theragra chalcogramma) in hokkaido, japan.hazard analysis of listeria monocytogenes contamination during processing of salted walleye pollock (theragra chalcogramma) roe was performed for a seafood plant in japan from december 2005 to february 2006. as a result, l. monocytogenes number was detected on the pallet used for transport of barrels in the salting process and one of the rollers of the roller conveyor, which rotates while in contact with the bottoms of the barrels, but was not detected in any raw materials, interim products or f ...200919194081
prevalence and characteristics of listeria monocytogenes in feces of black beef cattle reared in three geographically distant areas in japan.this study was conducted to determine the prevalence and characteristics of listeria monocytogenes in the feces of black beef cattle reared in geographically distant areas in japan. we surveyed 130 farms in the following three areas: northern (hokkaido prefecture), central (gifu and mie prefectures), and southern (oita, miyazaki, and kagoshima prefectures) areas and collected 1738 fecal samples. our data showed the following isolation rate for each area: northern, 11.4% of 651; central, 2.8% of ...201424180587
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