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Autor:
Michelle D. Danyluk, Linda J. Harris, Vanessa M. Lieberman, Irene Y. Zhao, Donald W. Schaffner
Publikováno v:
Journal of Food Protection. 78:42-50
Whole and diced yellow onions (Allium cepa) were inoculated with five-strain cocktails of rifampin-resistant Escherichia coli O157:H7 or Salmonella and stored under conditions to simulate food service or consumer handling. The inoculum was grown in b
Publikováno v:
Journal of Food Protection. 74:751-758
Vibrio parahaemolyticus ATCC 43996 was grown at 15°C for 53 h, 20°C for 24 h, 25°C for 12 h, 30°C for 9 h, 35°C for 9 h, or 40°C for 6 h to early stationary phase. Oyster meats were blended, autoclaved at 121°C for 15 min, inoculated with V. p
Publikováno v:
Journal of Food Protection. 74:461-464
The U.S. Food and Drug Administration's Bacteriological Analytical Manual recommends two enumeration methods for Bacillus cereus: (i) standard plate count method with mannitol-egg yolk-polymyxin (MYP) agar and (ii) a most-probable-number (MPN) method
Publikováno v:
Journal of Food Protection. 69:1851-1857
To evaluate the survival of Salmonella on raw almond surfaces, whole almond kernels were inoculated with Salmonella Enteritidis phage type (PT) 30 collected from a 24-h broth culture or by scraping cells from an agar lawn. Kernels inoculated with law
Publikováno v:
Journal of Food Protection. 67:2760-2766
Coliform counts in a variety of foods, including dairy products (raw milk, pasteurized milk, yogurt, butter, and ice cream), meats (pork sausage, ground beef, and raw chicken), raw eggs, and chocolate, were performed by the rapid automated BioSys opt
Publikováno v:
Journal of Food Protection. 67:2107-2116
Survival and growth of wild-type (EDL 933) and rpoS-deficient (FRIK 816-3) strains of Escherichia coli O157:H7 after exposure to an alkaline cleaner for 2 min and inoculating into roast beef (pH 6.3) and hard salami (pH 4.9) at low (0.003 to 0.52 CFU
Publikováno v:
Journal of Food Protection. 66:918-923
Garden cress, sesame, radish, and mustard seeds immersed in water were treated with high pressure (250, 300, 350, and 400 MPa) for 15 min at 20 degrees C. After treatment, percentages of seeds germinating on water agar were recorded for up to 11 days
Autor:
Elliot T. Ryser, Finny P. Mathew
Publikováno v:
Journal of Food Protection. 65:643-650
Overnight tryptose broth cultures of three L monocytogenes strains were combined, centrifuged, suspended in 200 ml of tryptose phosphate broth, and heated at 56 degrees C for 20 min and at 64 degrees C for 2 min to obtain low-heat-injured (LHI) and h
Autor:
Dong-Hyun Kang, Peter Gray
Publikováno v:
Journal of Food Protection. 65:88-92
A new rapid coliform-monitoring method using thin tube cultivation (TTC) was developed. One hundred microliters of modified selective medium (1.5% agar) and 100 microl of sample were mixed in thin cultivation tubes, yielding a semisolid mixture of 0.
Autor:
J. Nogueira, Edlayne Gonçalez, Benedito Corrêa, Simone Aquino, Tatiana Alves dos Reis, Maria Helena Rossi
Publikováno v:
Journal of food protection. 73(5)
This study was developed to evaluate the fungal burden, toxigenic molds, and mycotoxin contamination and to verify the effects of gamma radiation in four kinds of medicinal plants stored before and after 30 days of irradiation treatment. Eighty sampl