Method of producing an oil extract from seeds of plants via a binary azeotropic solvent mixture
First Claim
1. A method of producing an oil extract from seeds of plants selected from the group including:
- meadowfoam;
brassicas;
crambe;
said method including the steps of;
(a) washing the seed with a solvent, whereby oil from the seed is dissolved in the solvent;
(b) separating a spent seed solvent solution, wherein the spent seed solvent solution is a binary azeotropic mixture of aliphatic solvents and alcohols;
(c) distilling the spent seed solvent solution at a temperature of equal to or less than 120°
C., and a pressure equal to or less than 50 kPa to obtain an oil extract from the spent seed solvent solution; and
(d) deodorising the oil extract to remove any adverse odours in the oil extract,wherein the oil extract produced contains a glucosinolates (GSL).
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Accused Products
Abstract
The invention describes a method of producing extracts from the seeds of meadowfoam, brassicas and crambe plants. A number of subsidiary processes and steps are shown in order to extract differing fractions of oil. Products produced from the above method are also described including uses and methods of these products which include a variety of skin conditions including eczema, facial eczema, dermatitis, external ulcers, welts, rashes, insect bites, allergic reactions and other irritations, burns, wounds, psoriasis, acneiform eruptions, dryness, dry skin, irritation, skin atrophy, secondary infections and the like. The extracts are also described as being a useful compound for treatment of the symptoms of such skin conditions as described above. In particular the use and extraction of glucosinolate (GSL), thiocyanates (TCL) and isothiocyanates (ITCL) is described.
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Citations
34 Claims
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1. A method of producing an oil extract from seeds of plants selected from the group including:
- meadowfoam;
brassicas;
crambe;
said method including the steps of;(a) washing the seed with a solvent, whereby oil from the seed is dissolved in the solvent; (b) separating a spent seed solvent solution, wherein the spent seed solvent solution is a binary azeotropic mixture of aliphatic solvents and alcohols; (c) distilling the spent seed solvent solution at a temperature of equal to or less than 120°
C., and a pressure equal to or less than 50 kPa to obtain an oil extract from the spent seed solvent solution; and(d) deodorising the oil extract to remove any adverse odours in the oil extract, wherein the oil extract produced contains a glucosinolates (GSL). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- meadowfoam;
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18. A method of producing a light oil fraction from seeds of plants selected from the group consisting of:
- meadowfoam, brassicas, and crambe;
the method comprising the steps of;(i) forming a mixture from the oil extract, said oil extract comprising glucosinolates (GSL), isothiocyanate (ITCL) and thiocyanate (TCL) wherein the extract is derived from meadowfoam, with a solvent selected from the group consisting of; alcohol;
water; and
a combination thereof; and(ii) separating the mixture of step (i) into a solvent solution and oil; (iii) drying the solvent solution from step (ii) to remove solvent; and (iv) collecting the light oil fraction. - View Dependent Claims (19, 20, 21, 25, 26, 27)
- meadowfoam, brassicas, and crambe;
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22. A method of producing a light oil fraction from seeds of plants selected from the group consisting of:
- meadowfoam, brassicas, and crambe, the method comprising the steps of;
(i) mixing the oil extract, said oil extract comprising glucosinolates (GSL), isothiocyanate (ITCL) and thiocyanate (TCL) wherein the extract is derived from meadowfoam, with at least one alcohol to make a first alcohol solution; (ii) separating the first alcohol solution from the oil; (iii) mixing the oil from step (ii) with at least one other alcohol to that used in step (i) to make a second alcohol solution; (iv) separating the alcohol solution from the oil; and (v) drying the alcohol solution and the second alcohol solution either separately or together to remove alcohol solvent and collecting a light oil fraction. - View Dependent Claims (23, 24, 33)
- meadowfoam, brassicas, and crambe, the method comprising the steps of;
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28. A method of producing an aqueous solution from the seeds of plants selected from the group consisting of:
- meadowfoam, brassicas, and crambe;
the method comprising the step of;
mixing the oil extract, said oil extract comprising glucosinolates (GSL), isothiocyanate (ITCL) and thiocyanate (TCL) wherein the extract is derived from meadowfoam, with a base aqueous solution. - View Dependent Claims (29, 30, 31, 32)
- meadowfoam, brassicas, and crambe;
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34. A filtered oil extract comprising an extract of meadowfoam, said filtered oil extract containing glucosinolates (GSL), isothiocyanate (ITCL) and thiocyanate (TCL) compounds in therapeutically effective amounts.
Specification