The embryotoxic potential of ochratoxin A and citrinin was studied after administering, either subgerminally or intraamniotically, single mounting doses of the mycotoxins to chicken embryos on days 2, 3, and 4. The beginning of the embryotoxicity dose range was found to be between 0.01 to 0.05 microgram for ochratoxin A and 1 to 10 micrograms for citrinin. The maximum response to both mycotoxin...

OBJECTIVES The present study was an attempt at investigating whether the aqueous extract of Emblica officinalis may have an ameliorative effect on ochratoxin-induced lipid peroxidation in the kidney and liver of mice. METHODS Adult male albino mice were orally administered 50 microg (LD, low dose) and 100 microg (HD, high dose) of ochratoxin/0.2 ml of olive oil/animal/day for 45 days. RESUL...

A three-year study was undertaken to investigate the fungal species present on the surface of grape berries from Portuguese vineyards in four winemaking regions. Emphasis was given to Aspergillus and Penicillium species due to their relevance for mycotoxin production. From the 3517 fungal strains detected 27 genera were identified. The region of origin markedly influenced the spoilage fungal po...

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...

Ochratoxin A (OA) ist ein Mycotoxin, welches von zwei ubiquitären Schimmelpilzarten produziert wird (Aspergillus und Penicillium). OA is~ vor allem nier~n­ toxisch aber auch ein potentes Nierenkanzerogen. In Lebensmitteln kann OA haufig nachgewiesen werden, vor allem in Cerealien, aber auch z.B. in Bier, Dörrfrüchten und Kaffeebohnen. Widersprüchliche Daten sind publiziert worden über den Einfl...

Between January 2009 and December 2011, a total of 7049 corn, soybean/soybean meal, wheat, dried distillers grains with solubles (DDGS) and finished feed samples were analyzed for the occurrence of aflatoxins (Afla), zearalenone (ZEN), deoxynivalenol (DON), fumonisins (FUM) and ochratoxin A (OTA). Samples were sourced in the Americas, Europe and Asia. Afla, ZEN, DON, FUM and OTA were present re...

UNLABELLED The objective of this study was to evaluate the effect of different caffeine concentrations (0-4%) on (i) lag phase prior to growth, (ii) growth rates and (iii) ochratoxin A (OTA) production by strains from the Aspergillus section Circumdati and Aspergillus section Nigri groups, isolated from coffee, when grown on a conducive medium at 0·98 water activity and 30°C. The lag phases pri...

Automatic and manual sampling for ochratoxin A (OTA) in barley grain was compared under industrial conditions considering sampling uncertainty as well as practical and technical aspects. Ten tonnes of barley inoculated with Penicillium verrucosum were incubated until the OTA concentration reached approximately 15 µg kg(-1) and sampled with manual and automatic sampling. A nested experimental de...