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Aflatoxins
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Introduction Mycotoxins are a group of structurally diverse secondary fungal metabolites that occur as grain contaminants. They can cause serious problems in livestock resulting in substantial economic losses (Huwig et al. 2001). Two of the most common mycotoxins found in animal feed, aflatoxin B1 (AFB1) and zearalenone (ZEA), cause food- and feed-borne intoxications called mycotoxicoses (CAST 2003). Aflatoxin B1 is a...
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Introduction Intensive breeding farms enhance the simultaneous occurrence of several affections. Coccidiosis is a disease of greater economic importance and affections coexist with it should be considered. Among these affections, aflatoxicosis, which have been reported to be immunosuppressive (Bakshi et al., 2000) leading to an increase in the susceptibility of chickens to avian...
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Originally published in Research in Veterinary Science 2001, 71, 59-66 AFLATOXINS (AF), are secondary metabolites produced by certain fungi belonging to the genus Aspergillus and can occur as natural contaminants of poultry feed (Leeson et al 1995, Oguz 1997). The toxicity of AF in broiler chickens has been widely investigated by the determination of their carcinogenic,...
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Originally published in Research in Veterinary Science 2000, 69, 89–93. AFLATOXINS (AF), a group of closely related, extremely toxic chemicals, are produced by Aspergillus flavus and Aspergillus parasiticus and can occur as natural contaminants of poultry foods. Aflatoxicosis is an important disease of livestock and poultry. The frequent AF contamination of agricultural...
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Keywords : aflatoxin B 1 , ochratoxin A, E568, E567, zeolites organomodification MYCOTOXINS are secondary toxic metabolites of saprophytic moulds and they enter organisms of humans and animals through food and feed. The first data about detrimental effects of mouldy food in China dates back to 3000 years B.C. Yellow rice toxin disease was recorded in Japan at the end of the XIX century, when people consumed...
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Antioxidant system protects cells from damage caused by the action of reactive oxygen (ARO). Excessive formation of ARO in erythrocytes can lead to damage to their structure and violation of biochemical processes. Formation ARO increases under the influence of toxic substances. In extremely toxic compounds include aflatoxins, particularly aflatoxin B1 (AFB1). Investigated the effects of AFB1 on the activity of antioxidant enzymes and the content of TBA-active...
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I suffer from aflatoxins because I can´t buy gadgets to detect it, so I would like to know which detoxificant I should use on my feed. Thanks ...
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a Food, Environment and Health Research Group, Faculty of Health Sciences, University of Johannesburg, South Africa; b Biosciences, CSIR, PO Box 395, Pretoria, 001, South Africa; c Department of Biochemistry, University of Johannesburg, South Africa; d Department of Biochemistry, Federal University of Technology, Minna, Nigeria Mycotoxicology, 2014, 1: 1-8 ...
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INTRODUCTION Aspergillus flavus, A. parasiticus, A. nominus and a few other Aspergilli which produce aflatoxins (AFs) are closely related omnipresent microfungi that contaminate seeds and plant debris of many crops in the field during harvest, storage, and processing (Cvetnic & Pepeljnjak, 2007). Aflatoxins are a group of carcinogenic my cotoxins causing various acute and...
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Helica Biosystems, Inc is pleased to announce an innovative approach to testing aflatoxins and ochratoxin A in commodities which pose difficult problems in measurement by conventional "rapid"...
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Appreciate anyone that could contribute with a standard limit of Aflatoxin in Milk Powder valid for international trade. The EU adopt 0.05 u/kg, apparently different US Institution adopted 0.5 u/kg, hence further clarification is highly appreciated. Hernan Farias QA Manager in KSA ...
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Aflatoxins are toxic metabolites produced by a variety of molds such as Aspergillus flavus and Aspergillus parasiticus . They are carcinogenic and can be present in grains, nuts, cottonseed and other commodities associated with human food or animal feeds. Crops may be contaminated by one or more of the four following sub-types of aflatoxin: B1, B2, G1 and G2. While the other sub-types of aflatoxin present a significant danger at high concentration levels, aflatoxin B1 is...
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Introduction Many feed ingredients used in aquaculture have been found to be frequently contaminated (Cagauan et al., 2004) . At the present time, increased use of ingredients of plant origin in aquafeed formulations for fish culture has intensified the potential onset for aflatoxicosis in farming systems due to the carryover of high loads of aflatoxin contamination by vegetable sources (Murjani,...
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This study investigates elimination of aflatoxin B1 (AFB1) and fumonisin B1 (FB1) by treatment with recombinant enzyme preparations. Biological degradation of AFB1: Recombinant 2,3-dihydroxybiphenyl 1,2-dioxygenase (2,3-DHBD) and dihydrodiol dehydrogenase (DHD) enzymes were produced through extracellular expression of respectively the bphC1 and bphB genes of R. erythropolis in Escherichia coli BL21 (DE3). The recombinant 2,3-DHBD enzyme exhibited an enzyme...
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As quality assurance personnel in an Animal production firm, especially in the areas of feed production, checking the aflatoxin levels of ingredients and finished feeds is of paramount importance towards the production of safe and quality feeds for animals..Please any information/help as regards this issue and the procurement of such devices will be appreciated. ...
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I would like to ask about aflatoxin in beet pulp silage. What is the maximum limit? If I found a high level, is mycosorb safe? Thanks a lot ...
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Aflatoxins are a group of chemicals produced by certain mold fungi. These fungi, Aspergillus flavus and Aspergillus parasiticus , can be recognized by olive green or graygreen, respectively, on corn kernels, in the field or in storage (Figure 1). Although aflatoxins are not automatically produced whenever grain becomes moldy, the risk of aflatoxin contamination is greater in damaged, moldy corn than in corn with little mold. Aflatoxins are harmful or fatal to...
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Aflatoxins and ochratoxins are common contaminants of cereals and cereal – based products. A national survey for aflatoxins and ochratoxins in commercially available cereal based infant formulae was carried out in Nigeria. Seventy eight (78) samples of cereal based infant formulae were purchased from markets all over the country. The samples were extracted with (methanol: water 60+40) and cleaned up with Romer multisep column while detection was with liquid chromatograph using...
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Trouw Nutrition proudly announces the approval of Novasil TM Plus-TX as certified aflatoxin binder within the state of Texas. Novasil TM Plus-TX has a high ability to bind aflatoxins, preventing the harmful effects on animal performance. In an effort to provide relief to farmers in Texas, the Office of the Texas State Chemist provided an avenue for well researched aflatoxin binders to become certified for sale in Texas. In order...
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Mycotoxins, toxic metabolic by-products of fungi, have received increased attention during the past decade. In recent years, aflatoxins B1, B2, G1, and G2 (a group of closely-related mycotoxins produced by the fungus Aspergillus flavus Link ex. Fries.) have been given considerable attention in corn. Although aflatoxins have been reported in corn produced in the Midwest, they have been more commonly found in corn produced in the southeast. Aflatoxins were particularly troublesome in...
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