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Showing 1-30 of 35 results for "A0263" within Papers
Lei Bao et al.
Journal of AOAC International, 96(5), 1017-1018 (2013-11-29)
A collaborative study of a method for determination of aflatoxins (AFs) B1, B2, G1, and G2 in olive oil, peanut oil, and sesame oil using immunoaffinity column cleanup, postcolumn derivatization, and LC with fluorescence detection, previously published in J. AOAC
Mary Trucksess et al.
Journal of AOAC International, 89(3), 624-630 (2006-06-24)
Mycotoxins are toxic secondary metabolites produced by certain molds and are common contaminants of many important food crops, such as grains, nuts, and spices. Some mycotoxins are found in fruits, vegetables, and botanical roots. These contaminants have a broad range
Si Chen et al.
Analytical and bioanalytical chemistry, 405(5), 1623-1630 (2013-01-15)
This article describes the use of microwave-assisted extraction (MAE) as a pretreatment technique for the determination of aflatoxins B(1), G(1), B(2), and G(2) in grains and grain products. The optimal operation parameters, including extraction solvent, temperature, and time, were identified
Xiaomeng Wu et al.
The Analyst, 137(18), 4226-4234 (2012-07-27)
High-quality surface-enhanced Raman scattering (SERS) spectra of aflatoxin (AF) B(1), B(2), G(1) and G(2) have been acquired using silver nanorod (AgNR) array substrates fabricated by oblique angle deposition method. Significant vibrational peaks are identified on the argon plasma-cleaned substrates, and
Emmanuel Njumbe Ediage et al.
Food chemistry, 177, 397-404 (2015-02-11)
An LC-MS/MS method was developed and validated for the detection and quantification of 23 mycotoxins in different varieties of sorghum. The method performance characteristics were as follows: suitable linearity ranges for all 23 mycotoxins with p-value >0.05; limits of detection
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
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
[Study on determination of aflatoxins B1, B2, G1 and G2 in peanuts using OASIS HLB cartridges with post-column derivatization HPLC and fluorescence detection].
Yanbin Yu et al.
Se pu = Chinese journal of chromatography, 22(6), 658-658 (2005-04-06)
Y M Diop et al.
Dakar medical, 45(2), 134-137 (2005-03-23)
Aflatoxins are mycotoxins produced by some strains of fungus (Aspergillus) which develop in peanut seeds. Peanut oil and past are very used up in Senegal, then the aflatoxin poisoning risk is very actual. The aim of this study was to
The use of regenerated immunoaffinity columns for aflatoxins B1, B2, G1 and G2 in peanut confection.
Maria Helena Iha et al.
Journal of chromatography. A, 1483, 1-7 (2017-01-09)
The aim of this study was to investigate the feasibility of using multitime-regenerated immunoaffinity column (IAC) for aflatoxins B1, B2, G1 and G2 in peanut confection. After each use, the IAC was washed immediately with phosphate-buffered saline and stored for >12h
Meri Kokkonen et al.
Food additives and contaminants, 22(5), 449-456 (2005-07-16)
A simple and feasible method is described for analysing nine mycotoxins in cheese matrix. The method involves liquid extraction followed by high performance liquid chromatographic separation and mass spectrometric detection of the analytes, and allows the determination of aflatoxins B1
J Tam et al.
Food additives and contaminants, 23(7), 693-699 (2006-06-06)
Three hundred and forty-nine breakfast and infant cereal samples were collected at retail level across Canada from 2002 to 2005. They included rice-, soy-, barley-based and mixed-grain infant cereals, corn-, wheat-, rice-based and mixed-grain breakfast cereals, and were analysed for
Dipendra K Mahato et al.
Frontiers in microbiology, 10, 2266-2266 (2019-10-23)
Aflatoxins produced by the Aspergillus species are highly toxic, carcinogenic, and cause severe contamination to food sources, leading to serious health consequences. Contaminations by aflatoxins have been reported in food and feed, such as groundnuts, millet, sesame seeds, maize, wheat
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
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
Viresh Mohanlall et al.
Journal of food protection, 69(9), 2224-2229 (2006-09-26)
Phytoalexins (stress-induced compounds) from Citrus sinensis cultivar Valencia were screened for antifungal and antimycotoxic activity against a test organism (Cladosporium cladosporoides) and mycotoxin-producing fungi Fusarium verticillioides and Aspergillus parasiticus. The active compound, a member of the coumarin family of compounds
Evaluation and improvement of extraction methods for the analysis of aflatoxins B1, B2, G1 and G2 from naturally contaminated maize
Bertuzzi T, et al.
Food Analytical Methods, 512-519 (2012)
M Mably et al.
Food additives and contaminants, 22(12), 1252-1257 (2005-12-17)
Between March 1998 and March 2002, 304 samples of domestic (Canadian) and imported beers from 36 countries were picked up for the determination of aflatoxins B1, B2, G1 and G2. Twelve samples were positive with aflatoxins greater than the limit
Lingchen Yang et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 74, 120-130 (2014-10-09)
The T-2 and HT-2 toxins, the main metabolites of Fusarium poae, induce toxicity in broilers and accumulate in tissues. Consequently, during the breeding process of broilers, diets are frequently supplemented with physical adsorbents to protect birds against the toxicity induced
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
Ludwik Czerwiecki et al.
Roczniki Panstwowego Zakladu Higieny, 58(3), 489-501 (2008-02-06)
The method for determination of aflatoxin B1, B2, G1 i G2 in nuts, culinary spices, cereals and cereal products was described. To optimize the analytical procedure in several products, condition of proper extraction, clean-up, HPLC and detection were selected. After
Meritxell Ventura et al.
Journal of chromatography. A, 1048(1), 25-29 (2004-09-30)
An easy method for the determination of aflatoxins B1, G1, B2 and G2 in Rhammus purshiana by LC coupled to mass spectrometry has been developed. Aflatoxins were extracted with a mixture of methanol and water and then it was purified
Robert A Everley et al.
Journal of analytical toxicology, 31(3), 150-156 (2007-06-21)
Automated immunoaffinity solid-phase extraction followed by liquid chromatography-tandem mass spectrometry and chemical analogue internal standardization is employed to detect and quantify the aflatoxins AFB(1), AFB(2), AFG(1), AFG(2), and the metabolites AFM(1) and AFP(1) in urine. The dynamic range of the
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
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
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
A A Kalinichenko et al.
Bioorganicheskaia khimiia, 36(1), 122-132 (2010-04-14)
A panel of ten monoclonal antibodies to aflatoxins B1, B2, and G2 was produced and comprehensively characterized. The affinity and cross reactivity of these antibodies were determined using the methods of direct, indirect, and competitive ELISA. The structures of monoclonal
Kathleen D'Ovidio et al.
Food additives and contaminants, 23(2), 174-180 (2006-02-02)
Ginseng roots can be infected by molds during growth, harvest and storage and result in contamination with mycotoxins. In this study, an analytical method for the determination of aflatoxins B(1), B(2), G(1) and G(2), a group of structurally similar mycotoxins
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