Amygdalin is hydrolysed by two enzymes (amygdalin hydrolase and prunasin hydrolase) most effectively in crushed, moistened kernels, causing the formation of HCN and glucose To start with found out in 1786 by Scheele, who extracted it from the dye Prussian blue – and promptly died from exposure towards the vapours https://ispotassiumcyanidepoisono71481.pointblog.net/details-fiction-and-potassium-cyanide-kahan-milta-hai-71781107