A61K 8/97 - Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from algae, fungi, lichens or plantsCosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from derivatives thereof
The invention concerns a method for obtaining an extract enriched in rosmarinic acid from fresh plant matter chosen from the aerial parts, flowering heads, flowers and/or fresh leaves of plants from the family of Lamiaceae, Araliaceae, Boraginaceae, Apiaceae, Poaceae and Malvaceae. The invention is characterised in that the method comprises the successive steps of: 1) blanching said plant matter in steam; 2) continuously pressing the plant matter blanched in 1) with at least one compression screw, at a pressure between 4 and 10 bar, and recovering the juice (liquid co-product); 3) filtering the juice recovered in 2) and recovering a clarified juice; and 4) atomising the juice clarified in 3), in order to obtain a granulated or fine powder extract containing at least 5% by weight of rosmarinic acid relative to the total weight of the extract. The invention also concerns the extract obtained in this way and the compositions comprising such an extract. The compositions according to the invention are used in the food, cosmetic, nutraceutical and pharmaceutical fields.
A61Q 17/00 - Barrier preparationsPreparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
C12P 17/06 - Oxygen as only ring hetero atoms containing a six-membered hetero ring, e.g. fluorescein
C12P 7/64 - FatsFatty oilsEster-type waxesHigher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl groupOxidised oils or fats
4.
Euodia suaveolens Scheff, repellent compositions and use thereof
A61K 36/00 - Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
A61K 31/34 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
A01N 43/12 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom five-membered rings condensed with a carbocyclic ring
A01N 65/00 - Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
A01N 65/36 - Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
5.
USE OF EVODONE DERIVATIVES AS REPELLENT, NOVEL EVODONE DERIVATIVES AND SYNTHESIS PROCESS
The invention relates to the use of an evodone derivative as an active agent intended for repelling insects, in particular mosquitoes and, more particularly, mosquitoes of the species Aedes aegypti, Aedes albopictus and Culex pipiens. The invention is characterized in that the evodone derivative is of general formula (I): in which R1 and R2 are identical or different, and are -H or a linear alkyl group having from 1 to 3 carbon atoms, and X is =O or -OAc, with the exclusion of evodone (with R1 or R2 = -H, R1 or R2 = -CH3, R1 being different from R2, and X = =O). The invention also relates to novel evodone derivatives of general formula (I) in which R1 and R2 are identical and are -H, and X is -OAc; R1 and R2 are different and R1 or R2 is -H, R1 or R2 is -CH2CH3, and X is =O or -OAc; R1 and R2 are different and R1 or R2 is -H, R1 or R2 is -(CH2)2CH3, and X is =O or -OAc; and R1 and R2 are identical and are -CH3, and X is -OAc, and also to a process for the synthesis of evodyl acetate without methyl (with R1=R2= -H and X = -OAc), to a composition comprising an effective amount of a novel evodone derivative, and to the use of such a composition for repelling insects, in particular mosquitoes and, more particularly, mosquitoes of the species Aedes aegypti, Aedes albopictus and Culex pipiens.
A01N 43/12 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom five-membered rings condensed with a carbocyclic ring
A01N 65/36 - Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
C07D 307/88 - Benzo [c] furansHydrogenated benzo [c] furans with one oxygen atom directly attached in position 1 or 3
The invention relates to a method for producing lactones from a strain of Aureobasidium pullulans. The invention is characterized in that the method includes the following steps, according to which: a preculture of the Aureobasidium pullulans CBS 771.97 (obtained from the CBS-KNAW Fungal Biodiversity Centre, Uppsalalaan 8, 3584 CT Utrecht, Netherlands) or the related strains thereof; a culture is created, from an inoculum from the preculture, by fermenting, at a temperature of 20°C to 40°C for a period of at 3 days, such as to produce metabolites, in a sterilized aqueous production medium containing, at a concentration of 2 to 100 mM, a carbon source, a nitrogen source, a mineral salt solution, and a calcium source; and at the end of the fermentation period, the metabolites produced are converted into a lactone mixture containing (R)-5,6-dihydro-6-pentyl-2H-pyran-2-one (or (R)-(-)-massoia lactone) and/or (4R,6R)-4-hydroxy-6-pentyl-tetrahydro-2H-pyran-2-one.
C12P 7/64 - FatsFatty oilsEster-type waxesHigher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl groupOxidised oils or fats
C12P 17/06 - Oxygen as only ring hetero atoms containing a six-membered hetero ring, e.g. fluorescein
INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE (France)
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (France)
Inventor
Mouloungui, Zéphirin
Maruejouls, Christophe
Lavoine-Hanneguelle, Sophie
Abstract
The invention relates to a method for synthesising dimethyl carbonate from methanol and urea, in which a saline ureic medium is used that comprises at least one inorganic salt selected from the group made up of zinc (Zn) (II) chloride, tin (Sn) chlorides and iron (Fe) (III) chloride, characterised in that: methanol, in the presence of a catalytic composition, is placed in contact with said saline ureic medium that is at least partially liquid at a temperature referred to as synthesis temperature, which is higher than 140°C, such that reaction vapours are produced; the reaction vapours are condensed, and a condensate of said reaction vapours is collected, comprising dimethyl carbonate; the method is carried out at atmospheric pressure. The invention also relates to a method for enriching and purifying dimethyl carbonate.
Methods for extracting an extract of volatile odorous compounds from an organic raw material containing odorous compounds is disclosed. The method includes contacting an organic raw material with dimethyl carbonate, as a solvent, in at least one bath at a temperature of 10° C. to 70° C. A liquid organic phase is obtained that includes the dimethyl carbonate charged with volatile odorous compounds and is collected. If the liquid organic phase comprises an immiscible aqueous phase, decanting occurs to separate the dimethyl carbonate charged with odorous compounds therefrom thereby eliminating the aqueous phase. Next, partially eliminating by evaporation forms a pre-concentrated extract of volatile odorous compounds, which is recovered and if water is present, decanting occurs to eliminate the water. Additionally, concentrating the pre-concentrated extract of volatile odorous compounds by evaporation is performed to obtain the extract of volatile odorous compounds.
2 extraction of the alcoholic floral infusion to obtain a scented extract. This scented extract has an alcohol titrate of at least 75%. The invention also relates to scented water or perfume, food flavoring, and cosmetic compositions that contain the scented extract as an ingredient.
A61K 36/00 - Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
A61K 31/34 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
A01N 43/12 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atom with one hetero atom five-membered rings condensed with a carbocyclic ring
A01N 65/00 - Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
A01N 65/36 - Rutaceae [Rue family], e.g. lime, orange, lemon, corktree or pricklyash
11.
METHOD FOR EXTRACTING AN ODOROUS EXTRACT BY AN ALTERNATIVE SOLVENT TO CONVENTIONAL SOLVENTS
The invention relates to a method for extracting an extract of volatile odorous compounds from an organic raw material containing odorous compounds including the steps according to which: a) said organic raw material is placed in contact, in at least one bath at a temperature of 10 ºC to 70 ºC, with dimethyl carbonate used as a solvent in said bath in order to charge said dimethyl carbonate solvent with volatile odorous compounds from said organic material and to obtain a liquid organic phase; b) the liquid organic phase is collected from said bath; c) in the event that the collected liquid organic phase comprises an aqueous phase that is immiscible with the dimethyl carbonate resulting from the organic material, the liquid organic phase is decanted such as to separate the dimethyl carbonate charged with odorous compounds from said immiscible aqueous phase and the aqueous phase is eliminated; d) the dimethyl carbonate is partially eliminated by evaporation and a pre-concentrated extract of volatile odorous compounds is recovered; e) in the event that, after partially eliminating the dimethyl carbonate by evaporation, the pre-concentrated extract of volatile odorous compounds includes water, the pre-concentrated extract is decanted such as to eliminate the water; and f) the pre-concentrated extract of volatile odorous compounds is concentrated by evaporation in order to obtain the extract of volatile odorous compounds. The invention also relates to an extract of volatile odorous compounds prepared by the method according to the invention and to the uses thereof as a perfume, perfumery ingredient, food flavouring or even in the composition of a cosmetic product.
The invention relates to a process for obtaining a scented extract from fresh flowers, heads in bloom and/or leaves of a moist plant, comprising the following steps according to which a) the flowers, heads in bloom and/or leaves of the plant are picked; b) said freshly picked flowers, heads in bloom and/or leaves are infused in at least one bath comprising an alcoholic solvent, at a temperature below 50°C, in such a way as to obtain an alcoholic mixture; c) said alcoholic mixture is filtered in such a way as to recover an alcoholic floral infusion; and d) the alcoholic floral infusion is extracted with supercritical CO2 in order to obtain said scented extract, this scented extract having an alcohol titre of at least 75%. The invention also relates to an extract prepared by means of the process according to the invention and to the use thereof as a fragrance, fragranced diluting alcohol, perfumery ingredient or food flavouring, or else in the composition of a cosmetic product.
A61K 36/00 - Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
A61K 31/34 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
14.
EXTRACT OF EUODIA SUAVEOLENS SCHEFF, REPELLENT COMPOSITIONS, AND USE THEREOF
The invention relates to an extract of Euodia suaveolens Scheff, and is characterised in that the extract is produced from the airborne portions of the plant via at least one extraction step using an organic or hydro-alcoholic solvent, and contains evodone in a concentration of between 0.1 and 35 wt % relative to the total weight of the extract, and in that it has an insect repellent activity. The invention also relates to an insect repellent composition characterised in that it contains evodone in a cosmetically acceptable medium in a concentration of between 0.1 and 25 wt % relative to the total weight of the composition, and to the use of evodone as an active agent for repelling insects, in particular mosquitoes and more particularly European/Mediterranean mosquitoes of the Aedes aegypti species.
A01N 65/00 - Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
patents
