A 3-year comprehensive analysis of aflatoxin contamination in peanut butter was conducted in Zambia, sub-Saharan Africa. The study analyzed 954 containers of 24 local and imported peanut butter brands collected from shops in Chipata, Mambwe, Petauke, Katete, and Nyimba districts and also in Lusaka from 2012 to 2014. For analysis, a sample included six containers of a single brand, from the same...

The objective of this study was to evaluate biotic interaction between some mould species and active producer of aflatoxin B1 Aspergillus flavus NRRL 3251, co-cultured in yeast-extract sucrose (YES) broth. Twenty-five mould strains of Alternaria spp., Cladosporium spp., Mucor spp., A. flavus and A. niger, used as biocompetitive agents, were isolated from outdoor and indoor airborne fungi, scrap...

Antifungal activity of essential oils (EOs) of Zataria multiflora (thyme) and Syzygium aromaticum (clove) against Aspergillus flavus growth and aflatoxin B1 production was studied in potato dextrose agar (PDA) and potato dextrose broth (PDB), as well as in Iranian white cheese as a food model. The results showed that the inhibitory potential of EOs in the PDB medium is more than PDA medium. Clo...

background: in nature, there are herbal extracts, while capable of reducing aflatoxin b1 in agricultural product by different mechanisms, may also act as growth promoters. objectives: in this study, aqueous extract of t. daenensis was evaluated to detoxify contaminated feed with aflatoxin b1 and to determine the effect of growth promoters in japanese quail. methods: to this purpose, at 24 d of ...

In Portugal, there is rather little information about the natural occurrence of aflatoxin in feedstuffs. The aim of this work was to report the results of screening the natural incidence of aflatoxin B1 (AFB1) in samples of cattle feed collected from seven dairy cow's farms from Portugal distributed in several locations of the country. One thousand and one samples were taken from 1995 to 2004. ...

A survey was conducted in the five rice-growing regions in Guyana to determine the presence of aflatoxins in multiple fractions of rice in June/October 2015 growing season. The fractions were paddy, steamed paddy, cargo rice, white rice and parboiled rice. Samples were analyzed by High Performance Liquid Chromatography. A subset of the samples was further analyzed by enzyme-linked immunosorbent...

background: due to the high toxicity of aflatoxin and its effects on public health, determination of aflatoxin level in wheat flour samples in the golestan province, north of iran was investigated. to examine the effect of seasonal changes, summer and winter sampling was performed with standard sampling methods. methods: a total of 200 flour samples were collected from 25 factories. hplc method...

The multidrug resistance (mdr) genes encode P-glycoproteins, integral membrane proteins which function as drug efflux transporters. Exposure of animals in vivo and cells in vitro to a variety of xenobiotics leads to increased mdr1 gene expression and higher levels of P-glycoprotein. This response may protect cells from the cytotoxic effects of these compounds. In this investigation we functiona...