C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/42 (2006.01) A61K 31/19 (2006.01) C07C 51/47 (2006.01) C07C 51/48 (2006.01) C07C 62/32 (2006.01)
Patent
CA 2052745
The invention relates to a process for the preparation of carnosic acid from rosemary or sage, in which the spice is extracted with a non-polar solvent or with a mixture of highly apolar solvents, the extract obtained is subjected to a selective adsorption treatment on a solid support, the carnosic acid is desorbed with a polar solvent or with a mixture of highly polar solvents and the solvent is evapo- rated.
Aeschbach Robert
Philippossian Georges
Borden Ladner Gervais Llp
Societe Des Produits Nestle S.a.
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