Rosemary extract

摘要

Rosemary extract (International Numbering System for Food Additives [INS] No. 392) is obtained from ground dried leaves of Rosmarinus officinalis L. and has been shown to possess antioxidant properties. The antioxidant characteristics of rosemary extract are primarily attributed to its phenolic diterpene content - namely, carnosic acid and carnosol. Rosemary also contains several volatile components that contribute to its characteristic flavour. The rosemary extract for use as an antioxidant has a minimum ratio of total content of carnosic acid and carnosol to total volatile components of 15 : 1.