Toxic Substance Anabasine Detected in Tunisian Food Poisoning Incident

A recent incident of food poisoning in the Meknassi region of Tunisia's Sidi Bouzid governorate has been traced to the toxic substance anabasine. Laboratory analyses confirmed its presence in several food samples, prompting an announcement from the National Authority for the Sanitary Security of Food Products.

Anabasine was detected in a sample of 'osbène' (likely referring to chard or spinach), with smaller traces found in sauce and couscous samples. This discovery has raised concerns due to the potential health risks associated with anabasine, a substance less familiar to the public but recognized as dangerous.

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Anabasine has been detected in an osbène sample, while traces of this substance have also been found in smaller quantities in sauce and couscous samples taken for analysis.

Scientific literature indicates that anabasine is a toxic alkaloid naturally present in plants such as Nicotiana glauca, commonly known as tree tobacco. This plant, belonging to the same family as cultivated tobacco, contains compounds that affect the nervous system. Studies published in sources like the U.S. National Library of Medicine and PubMed show that anabasine mimics nicotine's action by binding to nerve receptors, disrupting nerve-muscle signal transmission.

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Anabasine acts similarly to nicotine. It binds to nerve receptors and disrupts the transmission of signals between nerves and muscles.

High exposure to anabasine can lead to severe health complications, including respiratory and cardiovascular problems. Symptoms may range from nausea, vomiting, abdominal pain, and diarrhea to excessive sweating, dizziness, vision or hearing disturbances, irregular heartbeat, and low blood pressure. In critical cases, it can impair respiratory muscles, causing potentially fatal respiratory failure if not treated promptly.

Experts suggest such poisonings often occur when toxic wild plants are accidentally consumed, mistaken for edible varieties during foraging. The tree tobacco plant, which grows wild and can resemble culinary herbs, poses a risk due to its appearance. This incident highlights the importance of accurate plant identification when gathering food from natural sources.

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High exposure can cause several serious complications, including respiratory and cardiovascular disorders.