28-Demethyl-β-amyrone
28-Demethyl-β-amyrone (28-Norolean-12-en-3-one) is one of the main triterpenes from Pistacia lentiscus var. Chia[1]. 28-Demethyl-β-amyrone is an antitoxin and can effectively for the toxic effects of Staphylococcal enterotoxins (SEs)[2].