Isolation and characterization of the methyl ketone mecursor in butter fat

Abstract

The direct isolation of the methyl ketone precursor in butter fat is described. Evidence is presented which demonstrates that the precursors of the C5 through C15 odd-numbered methyl ketones are triglycerides containing one Β-keto acid and two fatty acid moieties. These glycerides accounted for 0.045% of the butter fat.