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Showing 1-30 of 38 results for "A0138" within Papers
Magda M Aly et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 48(11), 3031-3034 (2010-05-18)
Different local and exported white cheese samples were collected from different markets in Jeddah during September 2008. Trace and heavy metals including Pb, Zn, Mn, Cu, Fe and Cd were analyzed using atomic absorption spectrometry. The concentration of the tested
Sahib Alam et al.
Journal of food science, 75(2), M61-M64 (2010-05-25)
The efficacy of calcium propionate at 2 different doses (0.5% and 1%) against growth and aflatoxins production by Aspergillus flavus (A-2092) was investigated in vitro on Czapek yeast extract agar at different levels of water activity (a(w)) in the range
Massimiliano Cuccioloni et al.
Analytical chemistry, 80(23), 9250-9256 (2009-06-25)
Aflatoxins are extremely toxic metabolites from Aspergillus species that can adulterate a wide range of human foodstuff. Herein, we propose a novel assay designed as an analytical test for aflatoxin B1 and G1 (AFB1 and AFG1, respectively) that could represent
Review of past and present research on Aflatoxin in Uganda
Kaaya NA and Warren HL
African Journal of Food, Agriculture, Nutrition and Development, 5(1) (2005)
Marilena Muscarella et al.
Methods in molecular biology (Clifton, N.J.), 739, 203-210 (2011-05-14)
A high-performance liquid chromatographic method with on-line post-column photochemical derivatization and fluorimetric detection for the simultaneous separation and quantitative determination of aflatoxin (AF) B(1), B(2), G(1), and G(2) in foodstuffs and feed materials is reported.The chromatographic separation is accomplished by
Nicoleta Manuela Miliţă et al.
Bacteriologia, virusologia, parazitologia, epidemiologia (Bucharest, Romania : 1990), 55(1), 19-24 (2010-11-03)
Aflatoxins are secondary metabolites produced by a group of strains, mainly Aspergillus and Penicillium species. These mycotoxins are bifurano-coumarin derivatives group with four major products B1, B2, G1 and G2 according to blue or green fluorescence emitted in ultraviolet light
Zengning Li et al.
Wei sheng yan jiu = Journal of hygiene research, 40(1), 50-52 (2011-03-26)
To explore the effect of AFG1 on the expression of human leukocyte antigen (HLA-I) molecule in human esophageal epithelial cells. Western Blot and RT-PCT analysis was used to explore the effect of AFG1 on the antigen presenting function of primary
Hongmei Zeng et al.
Applied microbiology and biotechnology, 90(2), 635-650 (2010-12-15)
In aflatoxin biosynthesis, aflatoxins G(1) (AFG(1)) and B(1) (AFB(1)) are independently produced from a common precursor, O-methylsterigmatocystin (OMST). Recently, 11-hydroxy-O-methylsterigmatocystin (HOMST) was suggested to be a later precursor involved in the conversion of OMST to AFB(1), and conversion of HOMST
C Lorini et al.
Annali di igiene : medicina preventiva e di comunita, 20(6), 553-562 (2009-02-26)
Aim of this survey is to identify those filamentous fungi which parasite Boletus edulis and its group and check the potential presence of secondary metabolites, specifically aflatoxin B1, total aflatoxins and ochratoxin A, in order to assess the risk to
Ahmed M Abdel-Hadi et al.
Toxins, 3(6), 647-659 (2011-11-10)
Aspergillus flavus and Aspergillus parasiticus are important pathogens of cotton, corn, peanuts and other oil-seed crops, producing toxins both in the field and during storage. We have designed three siRNA sequences (Nor-Ia, Nor-Ib, Nor-Ic) to target the mRNA sequence of
M I Almeida et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 29(4), 694-703 (2012-02-10)
A total of 230 samples of processed rice and its sub-products or derived products were analysed to establish the co-occurrence of several mycotoxins. Samples were analysed in the period 2007-2009 due to the outbreak of beriberi associated with the consumption
L H Zhao et al.
Journal of applied microbiology, 110(1), 147-155 (2010-11-03)
To prepare, purify and characterize an extracellular enzyme from Myxococcus fulvus ANSM068, designated as myxobacteria aflatoxin degradation enzyme (MADE), which possesses degradation activity against aflatoxin B(1) (AFB(1) ), G(1) (AFG(1) ) and M(1) (AFM(1) ) in solution. The culture supernatant
Sharaf S Omar et al.
Foods (Basel, Switzerland), 9(5) (2020-05-24)
In Jordan as in other worldwide countries, mycotoxins are considered a serious national problem in food supplies. As a result, almost all nations are setting and adopting different regulations targeting the control of mycotoxins levels in the domestic food supply
Jinyang Zhang et al.
Hybridoma (2005), 28(1), 67-70 (2009-02-26)
Using semisolid methylcellulose HAT medium selection and non-competitive and competitive indirect enzyme-linked immunosorbent assay, three hybridomas that secreted antibodies for aflatoxin G(1) were selected after fusion of mouse SP2/0 myeloma cells with spleen cells isolated from BALB/c mice that had
Review of past and present research on Aflatoxin in Uganda
Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2008)
Lei Bao et al.
Journal of AOAC International, 93(3), 936-942 (2010-07-16)
Edible oils are consumed directly, and used as ingredients in food, soaps, and skin products. However, oils such as olive oil, peanut oil, and sesame oil could be contaminated with aflatoxins, which are detrimental to human and animal health. A
Sergio José López Grío et al.
Journal of separation science, 33(4-5), 502-508 (2010-02-04)
A rapid and simple method was developed to determine aflatoxins B1, B2, G1, G2 and ochratoxin A in animal feed and pet foods by UHPLC-MS/MS. Because the complexity of the evaluated matrices, the proposed method is based on sonication extraction
Lina Liu et al.
Phytochemical analysis : PCA, 23(5), 469-476 (2012-02-11)
We report a rapid and accurate method to determine the natural occurrence of aflatoxins (AFs) B1, B2, G1 and G2 in medicinal herbs and the analysis of 174 commercial samples by this method. The aim of the present work is
The use of regenerated immunoaffinity columns for aflatoxins B1, B2, G1 and G2 in peanut confection
Iha Mh, et al.
Journal of Chromatography A, 1483, 1-7 (2017)
Danila Moscone et al.
Methods in molecular biology (Clifton, N.J.), 739, 217-235 (2011-05-14)
A novel method for aflatoxin B (AFB) determination is proposed. The AFB determination is based on acetylcholinesterase (AChE, from electric eel) inhibition, and the AChE residual activity is determined using the colorimetric method (Ellman's method). To select and optimize the
Cormac McElhinney et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32(12), 2101-2112 (2015-09-17)
An ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) multi-mycotoxin analytical method was developed to simultaneously identify and quantify 20 mycotoxins in grass silages, inclusive of mycotoxins that are currently regulated in European Union feeds. Extraction of mycotoxins from dried grass silages
Gonzalo J Diaz et al.
Journal of AOAC International, 95(4), 1084-1088 (2012-09-14)
The stability of aflatoxins B1, B2, G1, and G2 was studied in solutions containing different concentrations of water, acetonitrile, and/or methanol, and in autosampler vials treated with nitric acid or silanized. When stored at room temperature (20 degrees C) for
Review of past and present research on Aflatoxin in Uganda
Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens (2008)
Zengning Li et al.
Toxicology letters, 195(2-3), 169-173 (2010-04-13)
Aflatoxins (AF) are the mycotoxin with the carcinogenic effect produced by the fungi like Aspergillus flavus, including AFB(1), B(2), G(1), G(2), M(1), and so on. The detection rate of Aflatoxin G(1) (AFG(1)) is very high in the diet of residents
Debopam Acharya et al.
Analytica chimica acta, 630(1), 82-90 (2008-12-11)
Broad-specific immunoassays are an emerging technology that allows simultaneous determination of a class of closely related small molecular weight analytes. The current approaches are mainly based on the competitive format and involve complicated or expensive processes hindering their wide application.
Validation of simultaneous analysis method for determination of aflatoxins in olive oil by high performance liquid chromatographyfluorescence detector
Nabizadeh S, et al.
Journal of Food Safety and Hygiene, 1(2), 63-68 (2015)
Lokman Alpsoy et al.
Human & experimental toxicology, 30(6), 515-519 (2010-07-16)
Aflatoxins have been shown to be hepatotoxic, carcinogenic, mutagenic and teratogenic to different species of animals. Besides, at low concentrations, Selenium (Se(4+)) is antimutagenic and anticarcinogenic while it is toxic, mutagenic and carcinogenic at high concentrations. In this study, we
Mary W Trucksess et al.
Journal of AOAC International, 91(3), 511-523 (2008-06-24)
The accuracy, repeatability, and reproducibility characteristics of a method using multitoxin immunoaffinity column cleanup with liquid chromatography (LC) for determination of aflatoxins (AF; sum of aflatoxins B1, B2, G1, and G2) and ochratoxin A (OTA) in powdered ginseng and ginger
Haitao Shen et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(9), 3222-3228 (2012-06-20)
Our previous studies showed intragastric administration of Aflatoxin G(1) (AFG(1)) could induce lung adenocarcinoma, which derived from alveolar type II cells (AT-II cells). AT-II cells contribute to Aflatoxin B(1) (AFB(1)) metabolism and also serve as the potential progenitor cells for
Zheng Han et al.
Analytica chimica acta, 664(2), 165-171 (2010-04-07)
An ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for simultaneous determination of aflatoxins B1, B2, G1, G2, M1 and M2 in traditional Chinese medicines (TCMs) was developed. The approach was characterized in details and a special focus was placed on
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