Abstract: In the paper, the auto-oxidation inhibition of some galates on lard and the synergistic effects of other substances was studied.The various proportions of synergestic mixtures in the compound food antoxidants were also investigated. In lard the best results were obtained from mixtures of octyl gallate (OG) \citric acid and methionine at a certain ratio.They also showed the properties of highly effective antioxidation but with slight toxicity.

Key words: Compound food antioxidative Gallic acid esters Antioxidant activities Synergism