Adulteration of mustard oil has led to several outbreaks of Epidemic D

Adulteration of mustard oil has led to several outbreaks of Epidemic Dropsy in India. Which one of the following contaminant is responsible for it ?

Automobile oil
Linseed oil
Argemone oil
Rapeseed oil
This question was previously asked in
UPSC CAPF – 2009
Epidemic Dropsy is a clinical state resulting from consuming edible oils (most commonly mustard oil) that have been contaminated with Argemone oil. Argemone oil contains the toxic alkaloid sanguinarine, which is responsible for the symptoms of epidemic dropsy, including edema (swelling), skin lesions, gastrointestinal symptoms, and even heart failure. The contamination occurs when seeds of the Argemone mexicana plant, which visually resemble mustard seeds, are accidentally or intentionally mixed with mustard seeds.
– Epidemic Dropsy is caused by the consumption of edible oil contaminated with Argemone oil.
– The toxic substance in Argemone oil is sanguinarine.
Argemone mexicana is also known as Mexican poppy or prickly poppy. The seeds are small, black, and round, similar to mustard seeds, making accidental contamination during harvesting or processing possible.