Ruminants are much less sensitive to ochratoxin A (OTA) than non-ruminants. The ruminal microbes, with protozoa being a central group, degrade the mycotoxin extensively, with disappearance half lives of 0.6-3.8 h. However, in some studies OTA was detected systemically when using sensitive analytical methods, probably due to some rumen bypass at proportions of estimated 2-6.5% of dosage (maximum...

A purification method for ochratoxin A, using liquid-liquid extractions and a final cleanup by high-pressure liquid chromatography, is described.

AIMS The mycoflora of healthy grapes (i.e. without visible symptoms of rot) for wine production in Portuguese wine-making regions was assessed and its potential for ochratoxin A (OTA) production evaluated. The OTA content of grapes was also determined. METHODS AND RESULTS A total of 386 fungal strains were isolated by plating methods. The most frequent genera found in grapes were non-ochratox...

Mycotoxins, such as ochratoxin A (OTA), can occur from fungal growth on foods. OTA is considered a possible risk factor for adverse renal effects in humans based on renal tumors in male rats. For risk mitigation, Health Canada proposed maximum limits (MLs) for OTA based largely on a comparative risk assessment conducted by Health Canada (Kuiper-Goodman et al., 2010), in which analytical data of...

0956-7135/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.foodcont.2009.07.012 * Corresponding author. Address: Fundación Inves Benedicta de la Cruz, M. Dorronzoro 141, B6700FTA Lu Tel./fax: +54 2323 425946. E-mail addresses: [email protected], a The aim of this work was to identify the occurrence of deoxynivalenol (DON) and ochratoxin A (OTA) in flour; to estimate the reducti...

Department of Veterinary Pathology, Department of veterinary Physiology and Biochemistry, Dr G C Negi College of Veterinary and Animal Sciences, CSK Himachal Pradesh Agricultural University, Palampur-176062, Himachal Pradesh, India Indian Veterinary Research Institute, Regional Station, Palampur176 061, Himachal Pradesh, India Regulatory Research Center, CSIR Institute of Himalayan Bio-resource...

Grain storage conditions affect its quality. In Lithuania, different types of farms have various harvesting, processing and storing conditions. Grain samples were tested from agricultural granaries of 3 different types with different grain storage conditions in Lithuania. During March-April in 2001 the investigation on mycological and mycotoxicological state of stored grain from different types...

Ochratoxin A (OTA) is one of the most important mycotoxins that is found in food and feed products. It has proven toxic properties, being primarily known for its nephrotoxicity and carcinogenicity to certain animal species. OTA is produced by several species of Aspergillus and Penicillium that can be found in a wide variety of agricultural products, which makes the presence of OTA in these prod...

Recently a species in the genus Talaromyces, a uniseriate species of Aspergillus section Nigri and an isolate each of two widespread species, Penicillium rubens and P. commune, were reported to produce ochratoxin A. This claim was based on insufficient biological and chemical data. We propose a list of criteria that need to be met before an unexpected mycotoxin producer is reported. There have ...