1. FDA. (2012). Food additives. Retrieved January 15, 2013, from .
2. FDA. (2012). Generally Recognized as Safe (GRAS). Retrieved January 15, 2013, from .
3. European Commission. Food additives and flavourings. Retrieved January 15, 2013, from .
4. JECFA. About Codex. Codex Alimentarius Retrieved January 15, 2013, from ; 2013.
5. Therapeutic Goods Administration. (2007). Substances that may be used in Listed medicines in Australia. Retrieved January 15, 2013, from .