PROCESS FOR PREPARATION OF CONCENTRATED EXTRACTS BASED ON ROSEMARY ACID AND THEIR USE

摘要

The procedure comprises the following: a) grinding of dried plant material from the mint family (Labiatae) in inert atmosphere; b) water or organic solvent extraction of ground material obtained under a) and/or marc obtained after extraction of oil-soluble antioxidants from plants of the mint family (Labiatae); c) evaporation of organic solvent; d) concentration of the product obtained by traditional extraction, by ion exchange chromatography; e) extraction of rosemary acid by liquid-liquid extraction; f) concentration of product by elution chromatography; g) concentration of product based on rosemary acid by application of high pressure gases, using a cosolvent optionally. Products are applicable in antioxidative and antimicrobial agents.