Both BHA (Butylated hydroxyanisole) and BHT (Butylated hydroxytoluene) are phenolic compounds. The phenolic compound is a type of organic chemistry which made of a hydroxyl group (-OH) and bonded to an aromatic hydrocarbon group known as phenols or phenolics (James, 2012).
BHA and BHT are developed since 1947, which were used to check the oxidation in rubber products, before they were used as food preservatives. Nowadays BHA and BHT are widely used in food products as well as in the pharmaceutical field. Also it believed that BHA and BHT are self-treatment medications, and also they can be a replacement for vitamin A and E. However so far there is no side-affect have discovered on these two(James, 2012). Although both BHA and BHT are widely used, but consumers are only aware of BHT as a food additive, which approximately 5% of it is used the United States in food. The function of BHT is based on the physical properties which consist of crystalline solid and organic acid that has the melting point of 122oC and boiling point of 249oC.
Bibliography: Blakistone. B.(1998) Principle and Applications of Modified Atmosphere Packaging of Foods. Chapman & Hall. James. A.(2012) General, Organic, and Biochemistry. Brooks/Cole. John. H, Cheryl. H, Richard. S, Christine. S.(1991) Toxics A to Z. The Regents of the University of California. Russell. I, Gould. G.(2003) Food Preservatives. Kluwer Academic/Plenum Publishers, New York.