Diketo fatty acids prepared by ozonization of cyclopropene fatty acids have been separated and purified by chromatographic techniques. Mass spectra of esters of these compounds and of methanethiol adducts of cyclopropene acid esters are reported and interpreted. Location of the ring from examination of mass spectra of these derivatives appears to be a straightforward matter.

background: date is one of the foodstuff s that are produced in tropical areas and used worldwide. conventionally, methyl bromide and phosphine are used for date disinfection. the toxic side effects of these usual disinfectants have led food scientists to consider safer agents such as ozone for disinfection, because food safety is a top priority. the present study was performed to investigate t...