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US 2016/0106794 A1Published application
New fraction of sage extract and uses thereof
AssigneeAboca S.P.A. Società Agricola
InventorValentino MERCATI
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Abstract
The present invention relates to a new fraction of sage extract in which only traces of rosmarinic acid, carnosic acid and derivatives thereof and resins are present, a process for the preparation of such extract, compositions comprising it, and the use of the extract fraction and of the compositions for the protection of the skin or mucous membranes.
Claims25
1-21. (canceled)
A sage extract fraction depleted in rosmarinic acid, carnosic acid and derivatives thereof, and thujones;
- wherein said rosmarinic acid has a concentration in weight percentage of ≦3%, said carnosic acid and derivatives thereof have a concentration in weight percentage of ≦0.1%, and said thujones are substantially absent.
A process for preparation of a sage extract fraction comprising:
- a. preparing a hydroalcoholic extract of sage leaves;
- b. obtaining from the extract prepared in a. a concentrated aqueous extract;
- c. decanting and/or filtering said aqueous extract to collect supernatant or filtrate, respectively, wherein said supernatant or said filtrate comprises rosmarinic acid at a concentration in weight percentage of ≦3%, carnosic acid and derivatives thereof at a concentration in weight percentage of ≦0.6%, and said thujones are substantially absent;
- and
- d. subjected said supernatant or said filtrate obtained in c. to one or more passages through a hydrophobic adsorbing resin and collecting eluate, wherein said eluate thus obtained comprises rosmarinic acid at a concentration in weight percentage of ≦0.7%, carnosic acid and derivatives thereof at a concentration in weight percentage of ≦0.1%, and thujones are substantially absent.
2 more elements
Dependencies are inferred from the claim text.