2003
Development of a method for direct visual determination of aflatoxin production by colonies of the Aspergillus flavus group. (2003). J. Jaimez Ordaz, C.A. Fente, B.I. Vázquez, C.M. Franco, and A. Cepeda. International Journal of Food Microbiology, 83(2003): 219-225.
Abstract
This report describes a simple, rapid and reliable method for screening the aflatoxinproduction by moulds of the Aspergillusflavusgroup. Strains were cultivated on yeast extract agar to which methylated ?-cyclodextrin derivative plus sodium desoxycholate was added. Production of aflatoxins was readily detectable by direct visualisation of a beige ring surrounding colonies after an incubation time of 3 days at 28 C. When this ring was examined under UV light, it exhibited blue fluorescence. The presence of aflatoxins was confirmed by extracting the medium with chloroform and examining the extracts by HPLC with fluorescence detection.
An in situ method to study the reaction catalyzed by alkaline phosphatase on DNP
Degradación anaerobia de dos tipos de lactosuero en reactores UASB
Survival of Brucella abortus in milk fermented with a yoghurt starter culture
Optimization of thermal protein precipitation from acid whey
Condiciones microbiológicas en el proceso de sacrificio en un rastro municipal del estado de Hidalgo
COLORANT EXTRACTION FROM RED PRICKLY PEAR (OPUNTIA LASIACANTHA) FOR FOOD APPLICATION
APLICACIÓN DE SALES DE ACIDOS ORGÁNICOS EN LA CONSERVACIÓN DE CARNE DE CONEJO.
The role of foods in Salmonella infections. In: Salmonella - A Dangerous Foodborne Pathogen