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Patent Searching and Data


Title:
LIQUID/LIQUID EXTRACTION
Document Type and Number:
WIPO Patent Application WO/2011/092329
Kind Code:
A3
Abstract:
The invention relates to a method for the extraction of an unsaponifiable fraction contained in a vegetable oil, an oil originating from a micro-organism or a vegetable butter or in a co-product from the vegetable oil refining industry, such as deodorisation discharge. The method includes at least: A) a step comprising the transformation of the aforementioned oils, butter or co-product from the vegetable oil refining industry or oils originating from micro-organisms into a hydro-alcoholic solution by means of, in particular, a step selected from saponification and esterification steps; B) a step comprising the extraction of the hydro-alcoholic solution in which the fatty fraction is separated from the unsaponifiable fraction by means of liquid/liquid extraction; and C) an optional step comprising the purification of the unsaponifiable fraction, selected from the group containing crystallisation and liquid/liquid extraction steps. According to the invention, at least one step from the liquid/liquid extraction steps in step B, the crystallisation steps in step C and the liquid/liquid extraction steps in step C is performed using a first solvent system containing a concentration of solvent selected from among: fluorinated aromatic solvents, particularly trifluorotoluene (BTF) and hexafluorobenzene (BHF); tert-butyl ethers, particularly 2-ethoxy-2-methylpropane, also known as ethyl-tert-butyl-ether (ETBE); solvents comprising at least one silicon atom, particularly hexamethyldisiloxane (HMDS) and tetramethylsilane (TMS); methyl-tetrahydrofuran (MeTHF); and mixtures thereof, representing at least 50 vol.-% in relation to the total volume of the solvent system. The invention also relates to the fractions obtained using this method and to compositions containing said fractions.

Inventors:
SAUNOIS ALEX (FR)
LEGRAND JACQUES (FR)
MERCIER EGLANTINE (FR)
Application Number:
PCT/EP2011/051321
Publication Date:
February 23, 2012
Filing Date:
January 31, 2011
Export Citation:
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Assignee:
EXPANSCIENCE LAB (FR)
SAUNOIS ALEX (FR)
LEGRAND JACQUES (FR)
MERCIER EGLANTINE (FR)
International Classes:
A61K8/92; A23L1/30; A23L33/00; A61K8/97; B01D11/04; C11B1/10
Foreign References:
FR2803598A12001-07-13
US5458692A1995-10-17
US6890425B22005-05-10
JPH07291890A1995-11-07
US20040018258A12004-01-29
FR2678632A11993-01-08
US20060086664A12006-04-27
DE19608463A11997-09-04
US5403514A1995-04-04
US20060287533A12006-12-21
US20050209468A12005-09-22
Attorney, Agent or Firm:
TETAZ, Franck (139 rue Vendôme, Lyon Cedex 06, FR)
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