Aflatoxin Quantification

Aflatoxin quantification is the measurement of aflatoxins, toxic secondary metabolites produced mainly by Aspergillus fungi, in food, feed, environmental samples, or biological materials. Analytical methods typically extract these compounds from complex samples and measure them through antibody-based immunoassays or chromatographic separation with fluorescence or mass-spectrometric detection, using calibration standards to determine concentration. In immunology and infection research, these measurements establish exposure levels, support studies of fungal contamination and host responses, and help relate toxin burden to immune disruption, disease susceptibility, and treatment or prevention strategies. Reliable quantification is therefore essential for risk assessment, surveillance, and experimental reproducibility.

Aflatoxin Quantification - Related Videos

Research

JoVE Journal - Environment
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RNAi-mediated Control of Aflatoxins in Peanut: Method to Analyze Mycotoxin Production and Transgene Expression in the Peanut/Aspergillus Pathosystem

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Cited by 47 •

2015

We demonstrate a method for the analysis of aflatoxins and transgene expression in peanut seeds that contain RNA-interference signals for silencing aflatoxin-synthesis genes in the fungus Aspergillus flavus. RNAi-mediated control of mycotoxins in plants has not been reported previously.

Research

JoVE Journal - Biochemistry
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Non-destructive SPE-UPLC-based Quantification of Aflatoxins and Stilbenoid Phytoalexins in Single Peanut (Arachis spp.) Seeds

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2024

We demonstrate a medium-throughput method for quantification of aflatoxins and stilbenoid phytoalexins in single peanut seeds using ultra performance liquid chromatography. This method was specifically developed for the analyses of wild Arachis species challenged by the aflatoxigenic Aspergillus species.

Research

JoVE Journal - Immunology and Infection

Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays

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Cited by 39 •

2012

The devastation of cereal crops by seed-infecting fungi has prompted numerous research efforts to better understand plant-pathogen interactions. To study seed-fungal interactions in a laboratory setting, we developed a robust method for the quantification of fungal reproduction, biomass, and mycotoxin contamination using kernel bioassays.

Education

JoVE Science Education - Advanced Biology

Invertebrate Lifespan Quantification

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2023

Many animals naturally stop growing upon reaching adulthood, after which they undergo aging or "senescence" until dying. The amount of time between an organism\'s birth and death is called its lifespan, which can be influenced by various biological and environmental factors. By exposing organisms to different growth conditions, scientists can better understand the factors affecting lifespan. Flies and worms are ideal organisms to perform such experiments, given their short generation time and...

Quantification of the Immunosuppressant Tacrolimus on Dried Blood Spots Using LC-MS/MS

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Cited by 28 •

2015

Here we describe a high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) assay to quantify the immunosuppressant tacrolimus in dried blood spots using a simple manual protein precipitation step and online column extraction.

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