In liquid smoke contains phenolic compounds that are antioxidants, which can inhibit the breakdown of food by way of donating hydrogen so effective in very small amounts to inhibit autooksidasi fat, thus reducing damage to the food as fat oxidation by oxygen. • Liquid smoke grade 3 can not be used for food preservative, because many are carcinogenic tar. Liquid smoke grade 3 is not used as a food preservative, but is used in rubber processing deodorizing and let the wood preservative resistant to termites.
