نتایج جستجو برای: aflatoxin contamination

تعداد نتایج: 57719  

Journal: :Journal of food protection 2001
R L Brown Z Y Chen A Menkir T E Cleveland K Cardwell J Kling D G White

Thirty-six inbred lines selected in West and Central Africa for moderate to high resistance to maize ear rot under conditions of severe natural infection were screened for resistance to aflatoxin contamination using the previously established kernel screening assay. Results showed that more than half the inbreds accumulated aflatoxins at levels as low as or lower than the resistant U.S. lines G...

Journal: :Fungal biology 2012
Claudia Probst Peter J Cotty

Aflatoxins are highly carcinogenic mycotoxins frequently produced by Aspergillus flavus. Contamination of maize with aflatoxins imposes both economic and health burdens in many regions. Identification of the most important etiologic agents of contamination is complicated by mixed infections and varying aflatoxin-producing potential of fungal species and individuals. In order to know the potenti...

Journal: :Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment 2009
M E Lyn H K Abbas R M Zablotowicz B J Johnson

While soil application of a competitive non-toxigenic Aspergillus flavus strains is successful in reducing aflatoxin contamination in certain crops, direct application to aerial reproductive structures could be more effective for maize. A sprayable, clay-based water-dispersible granule formulation was developed to deliver non-toxigenic A. flavus strain K49 directly to maize ears. The efficacy o...

Journal: :iranian journal of public health 0
r ataee a mehrabi tavana mh ataee

aspergillums can produce and secrete directly afla­toxin m1. during the previous decade several papers pertaining to aflatoxin m1 have been published in different journals. not mention of their more or less scientific aspects, they have fundamentally some problems in different features. in this paper we are going to have a bird's eye view on some articles published on this topic. it is suggeste...

Journal: :jundishapur journal of microbiology 0
hamidreza joshaghani golestan research center of gastero enterology and hepatology, golestan university of medical sciences. gorgan, ir iran mohadeseh namjoo faculty of paramedicine and health, golestan university of medical sciences, gorgan, ir iran masoumeh rostami faculty of medicine, golestan university of medical sciences, gorgan, ir iran faramarz kohsar faculty of paramedicine and health, golestan university of medical sciences, gorgan, ir iran farhad niknejad faculty of paramedicine and health, golestan university of medical sciences, gorgan, ir iran; 60 kola roads- falsafi building, school of paramedicine and health, golestan university of medical sciences, gorgan, ir iran. tel: +98-1714436102-8

background cereal products are susceptible to mould damage during pre- and post-harvesting stages of the production. the regional specificity of golestan province in the northern region of of iran, with its high temperature and high relative humidity, acts as a leading factor for the growth of aflatoxin-producing fungi. it is well known that contamination of starch-based ingredients with mycoto...

Journal: :Food additives and contaminants 2007
Jiujiang Yu Catherine M Ronning Jeffery R Wilkinson Bruce C Campbell Gary A Payne Deepak Bhatnagar Thomas E Cleveland William C Nierman

Aflatoxins are toxic and carcinogenic polyketide metabolites produced by certain fungal species, including Aspergillus flavus and A. parasiticus. Many internal and external factors, such as nutrition and environment affect aflatoxin biosynthesis; therefore, we analyzed the transcriptome of A. flavus using expressed sequence tags (ESTs) from a normalized cDNA expression library constructed from ...

2003
B. Z. Guo J. Yu C. C. Holbrook R. D. Lee R. E. Lynch

Aflatoxin contamination in the field is known to be influenced by numerous factors. Drought and high temperatures are conducive to Aspergillus flavus infection and aflatoxin contamination. This article will review the application of new molecular tools to study host resistance to *Correspondence: B. Z. Guo, Crop Protection and Management Research Unit, USDA-ARS, Tifton, GA 31793, USA; E-mail: b...

Journal: :Phytopathology 2014
N P Garber P J Cotty

In the Rio Grande Valley of Texas (RGV), values of maize and cottonseed crops are significantly reduced by aflatoxin contamination. Aflatoxin contamination of susceptible crops is the product of communities of aflatoxin producers and the average aflatoxin-producing potentials of these communities influence aflatoxin contamination risk. Cropping pattern influences community composition and, ther...

Journal: :iranian journal of pharmaceutical sciences 0
gholamreza karimi school of pharmacy, and medical toxicology research center, mashhad university of medical sciences, mashhad, iran mohammad hassanzadeh school of pharmacy, and medical toxicology research center, mashhad university of medical sciences, mashhad, iran marziye teimuri school of pharmacy, and medical toxicology research center, mashhad university of medical sciences, mashhad, iran firuzeh nazari school of pharmacy, and medical toxicology research center, mashhad university of medical sciences, mashhad, iran amir nili school of pharmacy, and medical toxicology research center, mashhad university of medical sciences, mashhad, iran

the aim of this study was to evaluate aflatoxin m1 (afm1) contamination in pasteurized milk samples in mashhad, iran. one hundred and ten milk samples from different supermarkets were collected during three months in spring and investigated by enzyme linked immuno sorbent assay (elisa). afm1 was found in 100% of the milk samples. about 5.4% of the samples contained afm1 greater than the maximum...

Journal: Journal of Nuts 2011
Ali Tajabadipour Farzaneh Ahmadi

Iran is the biggest pistachio producer and exporter in the world. Surely, one of the most problems of pistachio industry is Aflatoxin contamination in recent years that treated exportation this valuable crop. This research was done in order to evaluate Aflatoxin contamination in indehiscence and mechanical splitting pistachios of Ouhadi cultivars in Rafsanjan region. Treatments of this research...

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