What does aflatoxin mean?
Aflatoxin refers to any of a group of highly toxic, carcinogenic chemical compounds produced by certain molds — chiefly Aspergillus flavus and Aspergillus parasiticus — that grow on agricultural commodities such as maize, peanuts, cottonseed, and tree nuts. The name derives from the mold species A. flavus combined with 'toxin'. Aflatoxins pose a serious threat to human and animal health: even small amounts consumed over time can cause liver damage and are strongly linked to liver cancer, while acute high-dose exposure can cause fatal poisoning. Because of this danger, regulatory agencies worldwide set strict limits on allowable aflatoxin levels in food and feed, and routine testing is standard practice in grain storage and export. The word belongs to scientific and regulatory vocabulary, appearing in food-safety reports, agricultural literature, and public-health discussions. Its significance lies in making visible an invisible hazard — a reminder that contamination by microscopic organisms can have consequences far out of proportion to their size.
nounA poisonous carcinogenic compound produced by certain molds, especially Aspergillus flavus and Aspergillus parasiticus, that can contaminate crops such as maize, peanuts, and tree nuts.
- Any of a group of toxic, carcinogenic compounds produced by Aspergillus molds that grow on food crops such as grains and nuts.
"The drought-stressed corn crop showed elevated levels of aflatoxin and had to be destroyed."
"Regulators recalled the shipment of pistachios after routine testing revealed unsafe aflatoxin concentrations."
"Chronic exposure to aflatoxin, particularly in regions with poor grain storage, significantly increases the risk of liver cancer."
The plural is commonly used when discussing the family of related compounds collectively, since several distinct types (B1, B2, G1, G2, M1) exist.
"Aflatoxins are monitored closely in international food trade because of their potent carcinogenicity."
Aflatoxin is one of the most potent liver carcinogens known to science — and it can be lurking in your peanut butter.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aflatoxin
The word aflatoxin was coined in the early 1960s following the discovery of the toxic compounds responsible for an outbreak of disease ('turkey X disease') in poultry fed contaminated peanut meal in England. It combines 'afla-', derived from Aspergillus flavus, the mold species from which the toxins were first isolated, with '-toxin', denoting a poisonous substance. The term reflects standard scientific naming conventions of combining a source organism's name with a suffix indicating toxicity.
How aflatoxin is actually used
A technical term used primarily in food safety, agriculture, toxicology, and public health contexts. It typically appears in formal or scientific writing rather than everyday conversation.
Easily confused with aflatoxin
Aflatoxin is the general class of related toxins; aflatoxin B1 is the most toxic and most common individual member of that group.