![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Comparisons of the activities of alkyl and aryl disulfides in inhibiting the autoxidation of squalene show the greater efficiency of the alkyl derivatives. The effect of electron donating substituents in aryl derivatives, promoting efficiency in the order CH3O > CH3 > H, is reversed in the thiosulfinates when added directly, although they are considered to be inhibitors formed in situ from the disulfides. The anomaly is discussed in terms of rates of oxidation and stabilities of the oxidation products and leads to the concept of thiosulfinate/disulfide mixture as a more efficient antioxidant.