EP0698076B1 - Procede et installation d'extraction sans solvant de produits naturels par micro-ondes - Google Patents
Procede et installation d'extraction sans solvant de produits naturels par micro-ondes Download PDFInfo
- Publication number
- EP0698076B1 EP0698076B1 EP94915607A EP94915607A EP0698076B1 EP 0698076 B1 EP0698076 B1 EP 0698076B1 EP 94915607 A EP94915607 A EP 94915607A EP 94915607 A EP94915607 A EP 94915607A EP 0698076 B1 EP0698076 B1 EP 0698076B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- biological material
- chamber
- microwaves
- stage
- natural product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 229930014626 natural product Natural products 0.000 title claims abstract description 23
- 238000000874 microwave-assisted extraction Methods 0.000 title abstract description 5
- 239000012620 biological material Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000001704 evaporation Methods 0.000 claims abstract description 6
- 230000008020 evaporation Effects 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 29
- 239000000284 extract Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 9
- 238000010908 decantation Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000009172 bursting Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 description 42
- 239000000341 volatile oil Substances 0.000 description 21
- 235000004357 Mentha x piperita Nutrition 0.000 description 12
- 244000246386 Mentha pulegium Species 0.000 description 11
- 235000016257 Mentha pulegium Nutrition 0.000 description 11
- 235000001050 hortel pimenta Nutrition 0.000 description 11
- 238000009434 installation Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000001296 salvia officinalis l. Substances 0.000 description 9
- 235000002020 sage Nutrition 0.000 description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 241000207923 Lamiaceae Species 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 235000006679 Mentha X verticillata Nutrition 0.000 description 3
- 235000002899 Mentha suaveolens Nutrition 0.000 description 3
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 241001080024 Telles Species 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 240000002234 Allium sativum Species 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 244000258393 Ligusticum scoticum Species 0.000 description 1
- 241001604105 Lippia sidoides Species 0.000 description 1
- 241001479543 Mentha x piperita Species 0.000 description 1
- 240000007164 Salvia officinalis Species 0.000 description 1
- 235000002912 Salvia officinalis Nutrition 0.000 description 1
- 241000218636 Thuja Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 235000019577 caloric intake Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006862 enzymatic digestion Effects 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000004611 garlic Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000000762 glandular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000001771 mentha piperita Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 239000008601 oleoresin Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/027—Recovery of volatiles by distillation or stripping
Definitions
- the invention relates to the field of extraction of natural products contained in biological material and in particular, but not exclusively, the extraction of such products from plants.
- Extraction of natural products from biological material can be carried out according to several methods, whether or not employing one or more extraction solvents, depending on the nature of the biological material used and that of the product or products you want to extract from it. It should be noted on this subject that the name given to an extract is often a function of the technology used to achieve it.
- the concretes, the resinoids, the oleoresins ... which are extracts consisting of volatile compounds or waxy and fatty products and non-volatile, are conventionally obtained in the presence of at least one solvent organic.
- Essential oils mainly consisting of volatile compounds odorants are generally obtained by distillation with water vapor (hydrodistillation) and / or by mechanical processes.
- oilseeds, essential oils citrus peel, fish oil ... is conventionally carried out using physical processes such as grinding and / or pressing, in the absence of solvent or by hydrodistillation.
- physical processes such as grinding and / or pressing, in the absence of solvent or by hydrodistillation.
- such techniques have the advantage of making it possible to obtain products of extraction (and biological material after extraction) free of solvents and therefore do not have to undergo a subsequent treatment for the elimination of such residues.
- the diffusion of the extracted product could be greatly improved by subjecting biological material a pretreatment which may consist in particular of a grinding, enzymatic digestion or even drying.
- a pretreatment which may consist in particular of a grinding, enzymatic digestion or even drying.
- sonication processes consisting in applying ultrasound to the mixture formed by the biological material and the solvent in order to favor the passage of the extract in the solvent.
- the mechanical waves formed by the ultrasound indeed allow locally generate a cavitation of the biological material and consequently a heating thereof promoting the release of the extract.
- EP 0 485 668 also describes an extraction process involving an extraction liquid which may be a supercritical liquid.
- the objective of the present invention is to propose an extraction process by microwave of natural products, not having the disadvantages of state of the art processes.
- one of the objectives of the invention is to provide such a method allowing extraction in the absence of solvent and therefore obtaining an extract free of any solvent residue.
- Another object of the invention is to propose such a process without both require excessive energy intake, for a given amount of biological material to be treated.
- Another objective of the invention is to propose an installation for the implementation of such a method.
- Such a method can be advantageously implemented on all natural biological materials, whether of animal, plant or micro-biological origin since these contain at least about 30% water.
- This process can in particular be used to extract essential oils from plants, tissues of animal origin and especially fish, but also from algae, microalgae and even possibly microorganisms.
- this biological material may, depending on its nature, be subdivided before being introduced in the enclosure to increase its microwave exposure factor.
- the process according to the invention makes it possible to carry out the hydrodistillation of product that we want to extract, not thanks to water brought from outside to during the process, but thanks to the water contained in the treated biological material.
- this water will be called water of constitution, when it may have been previously brought biological material, when it is available in dehydrated form, when a rehumidification stage.
- the method according to the invention therefore consists in subjecting the material biological treated with microwave radiation, in the absence of extracting solvent, allowing the contents of the cells of this material to be ejected outside.
- the pressure of the enclosure is reduced. This decrease in pressure allows, on the one hand, to increase the mechanical stress exerted on the cell walls of biological material and secondly increase volatility of the azeotropic mixture constituted by the product which it is desired to extract and the water vapour.
- the concomitant heating of the enclosure makes it possible to compensate for the very rapid decrease in temperature resulting from evaporation water of constitution under the effect of the lowering of the pressure in the enclosure. Such a decrease in temperature is indeed likely to mask completely the action of microwaves.
- the method according to the invention has many advantages.
- the method according to the invention is much less consuming of energy that microwave assisted extraction processes the state of the technical.
- the energy used work in the context of the invention is also less than that necessary for hydrodistillation.
- the residual biological material obtained at the end of the process is in a dry form, since the water of constitution which it contained was used for the training of the extracted product and that the process does not using external water supply. Consequently, this residual material may easily be degraded thermally and therefore possibly recycled as combustible.
- said step of the method according to the invention consisting in the intermittent application of a reduced pressure, consists in subjecting the interior from said enclosure to cycles of depression.
- said heating step is preferably carried out at a temperature below 100 ° C. It should be noted that the process could be carried out at a temperature advantageously below 75 ° C so as to allow extraction of products which tend to degrade under the effect of heat.
- the microwaves used during said microwave irradiation step advantageously have a frequency at least equal to 300 MHz.
- a frequency at least equal to 300 MHz We will note however, in many countries the use of frequencies is very strictly regulated and that for example in France, only the frequencies of 915 MHz and 2450 MHz is authorized for industrial equipment generating microwaves.
- said microwave irradiation step will preferably be conducted so as to apply a power ranging from approximately 100 W to approximately 10,000 W per kilogram of product treated.
- said irradiation step in the microwave is carried out with mechanical stirring of said biological material. Such agitation will increase the exposure factor of the material organic in the microwave.
- said means for recovering the extract comprise means for refrigerating the water vapor containing the extract.
- said installation has means for operate said means for reducing the pressure inside the enclosure cyclically.
- said enclosure is provided with stirring means.
- said installation comprises means for redirecting the waste water obtained from the means recovery of the extract inside said enclosure.
- an extraction facility for natural products from biological material is shown schematically.
- Such a installation includes an enclosure 1 equipped with means 2 making it possible to generate microwaves in the interior volume it defines.
- these means 2 allow the emission of microwaves having a frequency equal to 2450 MHz. (Note that it would also have been possible to use a microwave generator having a frequency of 915 MHz, this other frequency is also authorized in France).
- the enclosure 1 is moreover provided in its lower part with means agitation 9, constituted by a turbine with three blades, making it possible to agitate the biological material during its presence inside enclosure 1, when it is subjected to the action of microwaves.
- means agitation 9 constituted by a turbine with three blades, making it possible to agitate the biological material during its presence inside enclosure 1, when it is subjected to the action of microwaves.
- Such agitation increases exposure of biological material to microwaves and avoid certain areas of it are not sufficiently irradiated to carry out the operation extraction.
- the enclosure 1 is connected on the one hand with means 5 making it possible to reduce the pressure inside it and, on the other hand, with means 6 for recovering the natural product extracted thanks to the action of microwaves on biological material.
- the means 5 making it possible to decrease the pressure in the enclosure can consist of any means conventionally used for the purpose of creating a partial vacuum inside an enclosure, such as, for example, a pump or a water pump.
- the means 6 for recovering the extracted product comprise a pipe 11 installed in the upper part of the enclosure 1, around which cooling means 7 are provided, formed by a coil in which circulates a coolant.
- Line 11 allows vapor recovery from the action of microwaves on biological material and in which the oil is found essential. Thanks to the refrigeration means 7 these water vapors are condensed.
- a decanter 12 is provided at the outlet of the pipe 11 to recover these condensed vapors and separate the essential oil. The remaining waste water, after decantation is advantageously re-routed through a line 10 in enclosure 1 where it is recycled to complete the extraction.
- the enclosure 1 In order to allow heating of the interior of the enclosure 1 for compensate for the decrease in temperature resulting from the lowering of the pressure induced by the vacuum pump 5, the enclosure 1 has a thermostated double wall 3 connected to heating means 4.
- One kilogram of peppermint (Mentha piperita L., Hungarian variety) with 15% dry matter was placed inside the enclosure 1.
- the heating means 4 have been adjusted so that the thermostatically controlled wall 3 induce a temperature of around 70 ° C inside the enclosure 1 and the means agitation 9 have been implemented so as to have a speed of 40 revolutions per minute.
- the power emitted by the microwave generation means 2 is 1150 W and the reflected power varies between 170 W and 220 W. During the extraction operation, which lasted 15 minutes, the power actually absorbed therefore been from 930 to 980 W.
- the pump 5 was implemented so as to lower the pressure to 250 mb. This pressure reduction was carried out at the end 5 min, 10 min and 13 min.
- the temperature of the refrigeration medium circulating in the coil 7 has been set at 5 ° C so as to cause vapor condensation resulting from the action of microwaves on peppermint and containing oil essential.
- Example 1 The same amount of peppermint as in Example 1 was processed using the same operating conditions as in Example 1 but making operate pump 5 continuously so that the pressure at the interior of enclosure 1 is fixed at 250 mb during the entire extraction operation.
- sage sage (Salvia officinalis L.,) presenting 25% of dry matter has been placed inside enclosure 1.
- the means of heating 4 have been adjusted so that the thermostatically controlled wall 3 induces a temperature of around 70 ° C inside the enclosure 1 and the stirring means 9 have been implemented so as to have a speed of 40 revolutions per minute.
- the power emitted by the microwave generation means 2 is 1000 W and the reflected power varies between 150 W and 200 W. During the extraction operation, which lasted 10 minutes, the power actually absorbed therefore been from 800 to 850 W.
- the pump 5 was implemented so as to lower the pressure to 250 mb. This pressure reduction was carried out at the end 3.5 min and 7 min.
- the temperature of the refrigeration medium circulating in the coil 7 has been set at 5 ° C so as to cause vapor condensation resulting from the action of microwaves on peppermint and containing oil essential.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Fats And Perfumes (AREA)
- Compounds Of Unknown Constitution (AREA)
- Medicines Containing Plant Substances (AREA)
Description
- la solubilité du produit extrait dans le solvant choisi,
- la diffusion du produit extrait au sein de la matrice solide du matériel biologique utilisé.
- subdiviser un matériel biologique (menthe poivrée, livèche écossaise, cèdre ou ail) possédant une composante dispersée absorbant les micro-ondes (l'eau),
- mettre ce matériel subdivisé dans un solvant transparent ou partiellement transparent aux micro-ondes et absorbant moins les micro-ondes que la composante dispersée, tel que l'hexane, l'éthanol ou le dichlorométhane,
- exposer le mélange constitué par le matériel subdivisé et le solvant aux micro-ondes afin de permettre l'extraction des produits solubles en chauffant le matériel subdivisé préférentiellement au solvant,
- séparer le matériel biologique résiduel du solvant et,
- récupérer le produit extrait.
- placer ledit matériel biologique dans une enceinte, en l'absence de tout solvant,
- faire subir une irradiation aux micro-ondes audit matériel biologique présent dans ladite enceinte, afin de provoquer l'évaporation d'au moins une partie de l'eau contenue dans ledit matériel biologique et conséquemment l'éclatement des structures cellulaires dudit matériel biologique, de façon à permettre la libération d'au moins une partie dudit produit naturel,
- séparer le matériel biologique résiduel du produit naturel extrait, ledit procédé étant caractérisé en ce qu'il comprend les étapes complémentaires suivantes consistant à :
- appliquer, de façon intermittente, une pression réduite à l'intérieur de ladite enceinte durant ladite étape d'application des micro-ondes, afin de favoriser l'éclatement des structures cellulaire dudit matériel biologique induit par l'application des micro-ondes,
- chauffer, durant au moins l'essentiel de ladite étape d'application des micro-ondes, ladite enceinte, afin de compenser la chute de température résultant de l'évaporation de l'eau du matériel biologique,
- à réfrigérer la vapeur d'eau contenant ledit produit naturel extrait,
- à décanter le mélange liquide résultant d'une telle réfrigération et,
- à séparer ledit produit naturel extrait et l'eau résultant d'une telle décantation.
- une enceinte pourvue de moyens de génération de micro-ondes à l'intérieur de ladite enceinte et présentant une double-paroi thermostatée ;
- des moyens de chauffage permettant de réguler la température de ladite double-paroi thermostatée ;
- des moyens permettant de réduire la pression à l'intérieur de ladite enceinte ;
- des moyens de récupération de l'extrait à sa sortie de ladite enceinte.
- la figure 1 représente une vue schématique d'une installation selon l'invention ;
- la figure 2 traduit l'évolution de la pression de l'enceinte et de la température du matériel biologique, dans le cadre d'un premier exemple de mise en oeuvre du procédé selon l'invention avec l'installation schématisée à la figure 1, pour l'extraction d'huile essentielle de menthe poivrée ;
- la figure 3 représente l'évolution du rendement d'huile essentielle de menthe poivrée obtenu lors du premier exemple de mise en oeuvre du procédé ;
- la figure 4 traduit l'évolution de la pression de l'enceinte et de la température du matériel biologique, dans le cadre d'un exemple comparatif d'extraction d'huile essentielle de menthe poivrée ;
- la figure 5 représente l'évolution du rendement d'huile essentielle de menthe poivrée obtenu lors de l'exemple comparatif ;
- la figure 6 traduit l'évolution de la pression de l'enceinte et de la température du matériel biologique, dans le cadre d'un deuxième exemple de mise en oeuvre du procédé selon l'invention pour l'extraction d'huile essentielle de sauge officinale ;
- la figure 7 représente l'évolution du rendement d'huile essentielle de sauge officinale obtenu lors du deuxième exemple de mise en oeuvre du procédé selon l'invention.
Claims (13)
- Procédé d'extraction par micro-ondes d'au moins un produit naturel à partir d'un matériel biologique, ledit procédé comprenant les étapes consistant à:placer ledit matériel biologique dans une enceinte, en l'absence de tout solvant,faire subir une irradiation par micro-ondes audit matériel biologique présent dans ladite enceinte, afin de provoquer l'évaporation d'au moins une partie de l'eau de contenue dans ledit matériel biologique et conséquemment l'éclatement des structures cellulaires dudit matériel biologique, de façon à permettre la libération d'au moins une partie dudit produit naturel,séparer le matériel biologique résiduel du produit naturel extrait,appliquer de façon intermittente, une pression réduite à l'intérieur de ladite enceinte durant ladite étape d'application des micro-ondes, afin de favoriser l'éclatement des structures cellulaires dudit matériel biologique induit par l'application des micro-ondes,chauffer, durant au moins l'essentiel de ladite étape d'application des micro-ondes, ladite enceinte, afin de compenser la chute de température résultant de l'évaporation de l'eau du matériel biologique,
- Procédé selon la revendication 1 caractérisé en ce que ladite étape d'application d'une pression réduite consiste à soumettre l'intérieur de ladite enceinte à des cycles de dépression.
- Procédé selon l'une des revendications 1 ou 2 caractérisé en ce que ladite étape de séparation du matériel biologique résiduel de l'extrait consiste :à réfrigérer la vapeur d'eau contenant ledit produit naturel extrait,à décanter le mélange liquide résultant d'une telle réfrigération et,à séparer ledit produit naturel extrait et l'eau résultant d'une telle décantation.
- Procédé selon la revendication 3 caractérisé en ce qu'au moins une partie de ladite eau résultant de ladite étape de décantation est injectée dans l'enceinte pour effectuer l'hydrodistillation du produit naturel restant dans ledit résidu de matériel biologique.
- Procédé selon l'une des revendications 1 à 4 caractérisé en ce que ladite étape de chauffage est menée à une température inférieure à 100°C.
- Procédé selon l'une des revendications 1 à 5 caractérisé en ce que les micro-ondes utilisées lors de ladite étape d'irradiation aux micro-ondes possèdent une fréquence au moins égale à 300 MHz.
- Procédé selon l'une des revendications 1 à 6 caractérisé en ce que ladite étape d'irradiation aux micro-ondes est menée de façon à appliquer une puissance allant d'environ 100 W à environ 10 000 W par kilogramme de produit traité.
- Procédé selon l'une des revendications 1 à 7 caractérisé en ce que ladite étape d'irradiation aux micro-ondes est menée sous agitation mécanique dudit matériel biologique.
- Installation pour la mise en oeuvre du procédé selon l'une des revendications 1 à 8 caractérisée en ce qu'elle comprend :une enceinte (1) pourvue de moyens de génération de micro-ondes (2) à l'intérieur de ladite enceinte (1) et présentant une double-paroi thermostatée (3);des moyens de chauffage (4) permettant de réguler la température de ladite double-paroi thermostatée (3) ;des moyens permettant de réduire la pression (5) à l'intérieur de ladite enceinte ;des moyens de récupération de l'extrait (6) à sa sortie de ladite enceinte.
- Installation selon la revendication 9 caractérisée en ce que lesdits moyens de récupération de l'extrait (6) comprennent des moyens de réfrigération (7).
- Installation selon la revendication 9 ou 10 caractérisée en ce qu'elle présente des moyens (8) pour faire fonctionner lesdits moyens (5) permettant de réduire la pression à l'intérieur de l'enceinte de façon cyclique
- Installation selon l'une des revendications 9 à Il caractérisée en ce que ladite enceinte est pourvue de moyens d'agitation (9).
- Installation selon l'une des revendications 9 à 12 caractérisée en ce qu'elle comprend des moyens (10) permettant de réacheminer l'eau résiduaire obtenue au niveau des moyens de récupération de l'extrait à l'intérieur de ladite enceinte (1).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9305810 | 1993-05-11 | ||
FR9305810A FR2705035B1 (fr) | 1993-05-11 | 1993-05-11 | Procédé et installation d'extraction sans solvant de produits naturels par micro-ondes. |
PCT/FR1994/000551 WO1994026853A1 (fr) | 1993-05-11 | 1994-05-10 | Procede et installation d'extraction sans solvant de produits naturels par micro-ondes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0698076A1 EP0698076A1 (fr) | 1996-02-28 |
EP0698076B1 true EP0698076B1 (fr) | 1998-01-14 |
Family
ID=9447117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94915607A Expired - Lifetime EP0698076B1 (fr) | 1993-05-11 | 1994-05-10 | Procede et installation d'extraction sans solvant de produits naturels par micro-ondes |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0698076B1 (fr) |
JP (1) | JPH08512337A (fr) |
CN (1) | CN1059920C (fr) |
AT (1) | ATE162211T1 (fr) |
AU (1) | AU682035B2 (fr) |
BG (1) | BG62367B1 (fr) |
BR (1) | BR9406717A (fr) |
CA (1) | CA2161127C (fr) |
DE (1) | DE69407965T2 (fr) |
DK (1) | DK0698076T3 (fr) |
ES (1) | ES2114688T3 (fr) |
FR (1) | FR2705035B1 (fr) |
GR (1) | GR3026603T3 (fr) |
HU (1) | HU218708B (fr) |
RU (1) | RU2115700C1 (fr) |
WO (1) | WO1994026853A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1618798A1 (fr) | 2004-07-20 | 2006-01-25 | Milestone S.r.l. | Extraction par microondes de composés naturels volatils |
TWI601565B (zh) * | 2014-06-05 | 2017-10-11 | Timing Pharmaceutical Co Ltd | Essential oil extraction device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CA1336968C (fr) * | 1989-05-16 | 1995-09-12 | J. R. Jocelyn Pare | Methode amelioree d'extraction de produits naturels a l'aide d'energie ondulatoire |
SE9003593D0 (sv) * | 1990-11-12 | 1990-11-12 | T G Owe Berg | Foerfarande foer omvandling av vaerme till arbete |
EP0485668B1 (fr) * | 1990-11-16 | 1996-01-17 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of The Environment | Extraction d'huiles volatiles par micro-ondes et appareil pour le faire |
-
1993
- 1993-05-11 FR FR9305810A patent/FR2705035B1/fr not_active Expired - Fee Related
-
1994
- 1994-05-10 CA CA002161127A patent/CA2161127C/fr not_active Expired - Fee Related
- 1994-05-10 WO PCT/FR1994/000551 patent/WO1994026853A1/fr active IP Right Grant
- 1994-05-10 ES ES94915607T patent/ES2114688T3/es not_active Expired - Lifetime
- 1994-05-10 BR BR9406717A patent/BR9406717A/pt not_active IP Right Cessation
- 1994-05-10 CN CN94192507A patent/CN1059920C/zh not_active Expired - Fee Related
- 1994-05-10 HU HU9503230A patent/HU218708B/hu not_active IP Right Cessation
- 1994-05-10 AT AT94915607T patent/ATE162211T1/de not_active IP Right Cessation
- 1994-05-10 DK DK94915607T patent/DK0698076T3/da active
- 1994-05-10 RU RU95122234A patent/RU2115700C1/ru active
- 1994-05-10 JP JP6525060A patent/JPH08512337A/ja not_active Ceased
- 1994-05-10 EP EP94915607A patent/EP0698076B1/fr not_active Expired - Lifetime
- 1994-05-10 AU AU67251/94A patent/AU682035B2/en not_active Ceased
- 1994-05-10 DE DE69407965T patent/DE69407965T2/de not_active Expired - Lifetime
-
1995
- 1995-12-04 BG BG100187A patent/BG62367B1/bg unknown
-
1998
- 1998-04-10 GR GR980400799T patent/GR3026603T3/el unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1618798A1 (fr) | 2004-07-20 | 2006-01-25 | Milestone S.r.l. | Extraction par microondes de composés naturels volatils |
EP1629725A1 (fr) * | 2004-07-20 | 2006-03-01 | Milestone S.r.l. | Extraction par microondes de composés naturels volatils |
TWI601565B (zh) * | 2014-06-05 | 2017-10-11 | Timing Pharmaceutical Co Ltd | Essential oil extraction device |
Also Published As
Publication number | Publication date |
---|---|
BR9406717A (pt) | 1996-02-06 |
RU2115700C1 (ru) | 1998-07-20 |
HU9503230D0 (en) | 1996-01-29 |
FR2705035A1 (fr) | 1994-11-18 |
JPH08512337A (ja) | 1996-12-24 |
BG100187A (bg) | 1996-05-31 |
DK0698076T3 (da) | 1998-09-14 |
DE69407965D1 (de) | 1998-02-19 |
GR3026603T3 (en) | 1998-07-31 |
AU682035B2 (en) | 1997-09-18 |
ES2114688T3 (es) | 1998-06-01 |
EP0698076A1 (fr) | 1996-02-28 |
AU6725194A (en) | 1994-12-12 |
HUT75578A (en) | 1997-05-28 |
HU218708B (hu) | 2000-11-28 |
FR2705035B1 (fr) | 1995-08-04 |
CN1125461A (zh) | 1996-06-26 |
CN1059920C (zh) | 2000-12-27 |
DE69407965T2 (de) | 1998-09-10 |
WO1994026853A1 (fr) | 1994-11-24 |
CA2161127C (fr) | 2005-09-27 |
ATE162211T1 (de) | 1998-01-15 |
CA2161127A1 (fr) | 1994-11-24 |
BG62367B1 (bg) | 1999-09-30 |
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