Aflatoxins are secondary fungal metabolites that contaminate agricultural commodities and can cause sickness or death in humans and animals. Risk of aflatoxin contamination of food and feed in Africa is increased due to environmental, agronomic and socio-economic factors. Environmental conditions especially high humidity and temperature favour fungal proliferation, but also drought conditions i...

Aflatoxins, produced primarily by Aspergillus flavus and A. parasiticus, are among the most toxic and carcinogenic naturally occurring compounds. In an attempt to identify genes potentially involved in aflatoxin contamination of crops, and to better understand the biology of A. flavus, a large scale sequencing of A. flavus expressed sequence tags (EST) was conducted. The 5' ends of 26,110 cDNA ...

Three hundred and ninety-three samples of dairy products (124 samples of white cheese, 61 samples of cream cheese, 76 samples of Kashar cheese, and 132 samples of butter), 91 samples of cashew nut and 97 macademia nut marketed in Eastern Province, Saudi Arabia during September 2010-September 2011, were analyzed for aflatoxin M1 (AFM1), total aflatoxin and AFB1 by microtitre plate enzyme linked ...

the aim of this study was to evaluate aflatoxin contamination in feed and milk in dairy farm in kermanshah. alfalfa, corn silage and milk samples from 9 industrial and semi industrial dairy farms were collected during 2 months. blood samples were collected via tail venipuncture from 10 % of dairy cows in each farm for biochemical and hematological parameters. aflatoxin contamination in feeds an...

Aspergillus species are able to produce a range of mycotoxins, including e.g. aflatoxins, ochratoxins, fumonisins and patulin. Aflatoxins are mainly produced by members of Aspergillus section Flavi, and they contaminate various agricultural products in several parts of the world. Several recent reports have indicated that aflatoxin-producing fungi and consequently aflatoxin contamination occur ...

Soil moisture and soil temperature affect pre-harvest infection with Aspergillus flavus and production of aflatoxin. The objectives of our field research in Niger, West Africa, were to: (i) examine the effects of sowing date and irrigation treatments on pod yield, infection with A. flavus and aflatoxin concentration; and (ii) to quantify relations between infection, aflatoxin concentration and ...

In order to study the contamination of Aspergillus flavus and aflatoxin production in pistachio cultivars in the Semnan province, eight cultivars of pistachio were collected from major pistachio growing areas. Using the serial dilution method, ground pistachio kernels were inoculated on plates containing AFPA medium and incubated at 28° C. This experiment was performed using three replications ...

background: aflatoxins are fungal toxins which may be present in some foods and due to their negative health effects, represent a major concern for humans and food industries. in the present study, total aflatoxin contamination in products from eight feed materials production centers located in qom city of iran were evaluated by an elisa technique in november 2012. methods: a total of 40 feed s...

This research investigated the optimal conditions of heat and chemical treatment for elimination aflatoxin. NaOH showed highest inhibition percentage (75.44%) Aspergillus flavus growth that was isolated from lowgrade maize. Low-grade maize contaminated with A. treated by varying three factors in levels: concentration (0, 2.5 5% w/v), temperature (25, 50 75°C) time (24, 48 72 h). Aflatoxin remov...

Nowadays, aflatoxin B 1 (AFB ) contamination is considered as one of the most common food safety issues for humans and animals.