EP0423204A1 - Process for extracting cholesterol from a fat of animal origin - Google Patents

Process for extracting cholesterol from a fat of animal origin

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Publication number
EP0423204A1
EP0423204A1 EP89908224A EP89908224A EP0423204A1 EP 0423204 A1 EP0423204 A1 EP 0423204A1 EP 89908224 A EP89908224 A EP 89908224A EP 89908224 A EP89908224 A EP 89908224A EP 0423204 A1 EP0423204 A1 EP 0423204A1
Authority
EP
European Patent Office
Prior art keywords
cholesterol
glycerol
molar concentration
fat
added
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.)
Pending
Application number
EP89908224A
Other languages
German (de)
French (fr)
Inventor
Jean-Claude Montet
Marc Henri Lindheimer
Bernard Brun
Jacques Frankinet
Francis Mollard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GROUPEMENT D'INTERET ECONOMIQUE MONSERBIO
Institut National de la Sante et de la Recherche Medicale INSERM
Original Assignee
GROUPEMENT D'INTERET ECONOMIQUE MONSERBIO
Institut National de la Sante et de la Recherche Medicale INSERM
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GROUPEMENT D'INTERET ECONOMIQUE MONSERBIO, Institut National de la Sante et de la Recherche Medicale INSERM filed Critical GROUPEMENT D'INTERET ECONOMIQUE MONSERBIO
Publication of EP0423204A1 publication Critical patent/EP0423204A1/en
Pending legal-status Critical Current

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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
    • C11B3/00—Refining fats or fatty oils
    • C11B3/006—Refining fats or fatty oils by extraction
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C15/00—Butter; Butter preparations; Making thereof
    • A23C15/12—Butter preparations
    • A23C15/14—Butter powder; Butter oil, i.e. melted butter, e.g. ghee ; Anhydrous butter
    • A23C15/145—Removal of steroids, e.g. cholesterol or free acids; Fractionation of anhydrous milkfat by extraction with solvents other than solvent crystallisation or with supercritical gases or by distillation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/23—Removal of unwanted matter, e.g. deodorisation or detoxification by extraction with solvents

Definitions

  • the present invention relates to a new method for extracting cholesterol from a fat of animal origin.
  • the invention also relates to the fat depleted in cholesterol thus obtained.
  • the invention mainly finds its application in the manufacture of edible fats with a reduced sterol content.
  • the butter contains, per 100 g, between 200 and 30 mg of cholesterol, 90% of which is free cholesterol and 10% of esterified cholesterol.
  • the gravity that atherosclerosis can assume has precisely led to research into techniques allowing the preparation of edible fats and in particular of compositions based on milk fat whose cholesterol content is reduced.
  • REPLACEMENT SHEET liquid-liquid extraction of unesterified cholesterol This process is applicable to the elimination of cholesterol from animal fats used in human food and more particularly to the extraction of cholesterol from milk fats and in particular dehydrated butter or not.
  • Butter is an emulsion consisting of an oily phase and an aqueous phase.
  • the first consists essentially of triacylglycerol, diglycerides and phospholipids. It contains almost all of the cholesterol.
  • This oily phase constitutes the anhydrous milk fat below called MGLA.
  • the aqueous phase consists of casein, lactoglobulin lactose and mineral salts.
  • the process according to the invention is carried out on the oily phase: MGLA to which an aqueous saline solution is added with the addition of a bile salt and one or more glycerol mono- or di-esters.
  • the method according to the invention consists in depleting the oily phase in cholesterol by the action of the aqueous detergent solution, in allowing this aqueous phase to settle and then in eliminating it.
  • the present invention refers to a process for the extraction of cholesterol from an animal fat, characterized in that: a) an aqueous saline solution containing a bile salt and one or more mono- or glycerol diesters; b) a fine emulsion is formed; c) the mixture is decanted; d) the aqueous phase containing the extracted cholesterol is separated in order to obtain the anhydrous milk fat depleted in cholesterol.
  • the volume of the added aqueous solution is equal to the volume of the fat treated or greater until representing 60 times the volume of the fat treated: at least 1 volume of water for 1 volume of MGLA.
  • a cholate is preferably used, for example sodium cholate.
  • the glycerol esters used are monoesters or diesters of unsaturated fatty acids.
  • glycerol monoester glycerol monooleate or monolein can be used. It is also possible to use a mixture of monp- or diesters of one or more unsaturated fatty acids. For example, you can use DIMODAN LS (registered trademark), PECEOL (registered trademark) or GELEOL (registered trademark).
  • DIMODAN LS is marketed by Grinsted; it is a distillate of sunflower oil alcoholized with glycerol; it consists of 90% monoglycerides of linoleic and oleic acids in the proportion of approximately 3 linoleic acids per 1 oleic acid.
  • PECEOL is marketed by Gattefossé; it is a mixture of monooleate and glycerol dioleate containing approximately 0% monoester and 60% diester.
  • GELEOL is marketed by Gattefossé; it is a mixture of palmitic and stearic esters of glycerol containing approximately 4-0% of monoester and 60% of diester.
  • the molar concentration of bile salt in the aqueous solution can vary from 0.01 M to 1 M.
  • the molar concentration of mono- or di-ester of glycerol in the aqueous solution can vary from 0.01 M to 1 M.
  • the ratio of the molar concentration of bile salt to the molar concentration of mono- or di-glycetol ester can vary from 0.5 to 10.
  • the sodium chloride concentration can vary from 0.05 M to 0.2 M.
  • the molar concentration of bile salt is between 0.3 M and 0.6 M
  • the molar concentration of glycerol mono- or di-ester is between 0.3 M and 0.6 M
  • the ratio is understood between 0.5 and 2.
  • Spontaneous decantation can be accelerated by centrifuging the mixture or adding a sufficient amount of concentrated saline solution.
  • the whole process is carried out at a temperature between 20 ° C and 45 ° C, preferably at a temperature between 25 ° C and 37 ° C.
  • the analysis of the cholesterol level in the 2 phases was made by the use of radioactive cholesterol or by application of an anzymatic method involving cholesterol oxidase (Clin. Chim. Acta, 1975, 64_, 337-34-1) .
  • a solution containing 5 g of 0.15 M saline, 2.5 g (5.8 mmol) of sodium cholate and 2.5 g (6.3 mmol) of DIMODAN LS (registered trademark) is prepared.
  • the emulsion formed is left under stirring for 2 hours.
  • the stirring means used is an ultrasonic probe.
  • Oh add solid sodium chloride until the concentration of 2 M is reached, and the aqueous phase settles. After separation of the aqueous phase, the cholesterol-depleted MGLA is obtained.
  • this example can be repeated by adding to the starting MGLA 5 microcuries of carbon-labeled cholesterol.
  • the cholesterol present in the MGLA before the extraction and the cholesterol present in the aqueous phase after the extraction are measured.
  • the cholesterol extraction yield is 70%.
  • the extraction operation described can be repeated 1 or 2 times. An MGLA is thus obtained from which 97% of the cholesterol has been extracted.
  • PECEOL registered trademark sold by Gattefossé was used as the glycerol ester.
  • the cholestetol extraction yield is 0%.
  • glycerol monooleate or monoolein was used as the glycerol ester.
  • a solution containing 5 g of 0.15 M saline, 0.52 g of sodium cholate and 0.85 g of monoolein is prepared. At 22 ° C, this aqueous solution is added to 1 g of MGLA. The emulsion formed is left under stirring by an ultrasonic probe for 2 hours. Solid sodium chloride is added until the concentration is 2 M and the aqueous phase decanted. The yield of cholesterol extraction is 50%.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Edible Oils And Fats (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Steroid Compounds (AREA)

Abstract

La présente invention concerne un procédé d'extraction du cholestérol d'une matière grasse animale consistant à: ajouter à la matière grasse anhydre une solution aqueuse saline contenant un sel biliaire et un ou plusieurs esters de glycérol, former une émulsion fine, décanter le mélange, séparer la phase aqueuse contenant le cholestérol extrait, éventuellement répéter les différentes opérations. La présente invention concerne également la matière grasse anhydre obtenue par ledit procédé. Applications: fabrication de matières grasses anhydres appauvries en cholestérol.The present invention relates to a process for extracting cholesterol from animal fat consisting in: adding to the anhydrous fat an aqueous saline solution containing a bile salt and one or more glycerol esters, forming a fine emulsion, decanting the mixture , separate the aqueous phase containing the extracted cholesterol, possibly repeat the different operations. The present invention also relates to the anhydrous fat obtained by said process. Applications: manufacture of anhydrous fats depleted in cholesterol.

Description

Procédé d'extraction du cholestérol dans une matière grasse d'origine animale La présente invention concerne un nouveau procédé d'extraction du cholestérol contenu dans une matière grasse d'origine animale. The present invention relates to a new method for extracting cholesterol from a fat of animal origin.
L'invention concerne également la matière grasse appauvrie en cholestérol ainsi obtenue.The invention also relates to the fat depleted in cholesterol thus obtained.
L'invention trouve principalement son application dans la fabrication de matières grasses alimentaires à teneur réduite en stérols.The invention mainly finds its application in the manufacture of edible fats with a reduced sterol content.
On sait que chez les personnes ayant une alimentation riche en cholestérol, on constate une altération de la paroi des artères : l'athérosclérose due en partie à un dépôt anormal de cholestérol dans la paroi (J. Am. Med. Assoc, 1985, _2_5_3, 2080-2086) .We know that in people with a high cholesterol diet, there is a deterioration of the artery wall: atherosclerosis due in part to an abnormal deposition of cholesterol in the wall (J. Am. Med. Assoc, 1985, _2_5_3 , 2080-2086).
On sait également que le cholestérol est essentiellement apporté dans l'alimentation humaine par les matières grasses d'origine animale. Ainsi le beurre contient, pour 100 g, entre 200 et 3 0 mg de cholestérol dont 90 % est du cholestérol libre et 10 % du cholestérol estérifié.We also know that cholesterol is mainly provided in human food by fats of animal origin. Thus the butter contains, per 100 g, between 200 and 30 mg of cholesterol, 90% of which is free cholesterol and 10% of esterified cholesterol.
La gravité que peut revêtir l'athérosclérose a précisément conduit à rechercher des techniques permettant la préparation de matières grasses alimentaires et notamment de compositions à base de matière grasse laitière dont la teneur en cholestérol est réduite.The gravity that atherosclerosis can assume has precisely led to research into techniques allowing the preparation of edible fats and in particular of compositions based on milk fat whose cholesterol content is reduced.
Plusieurs procédés physico-chimiques ont été proposés pour réduire la teneur en cholestérol des matières grasses.Several physicochemical methods have been proposed to reduce the cholesterol content of fat.
Le passage de la matière grasse liquide sur une colonne absorbante de charbon actif est décrit dans le brevet européen publié sous le numéro 174- 84-8. La distillation moléculaire de la matière grasse laitière anhydre est utilisée pour préparer un substitut du beurre dans le brevet français 2 13 038. On a également décrit l'extraction du cholestérol par l'oxyde de carbone supercritique (Agric. Biol. Chem., 1982, 0 (5), 1209-1215).The passage of the liquid fat over an absorbent column of activated carbon is described in the European patent published under the number 174- 84-8. Molecular distillation of anhydrous milk fat is used to prepare a butter substitute in French patent 2 13 038. The extraction of cholesterol by supercritical carbon monoxide has also been described (Agric. Biol. Chem., 1982 , 0 (5), 1209-1215).
Ces différents procédés ne sont pas adaptés à une utilisation industrielle car ils nécessitent la mise en oeuvre de manipulations complexes et onéreuses.These different processes are not suitable for industrial use because they require the implementation of complex and expensive manipulations.
On a maintenant trouvé un nouveau procédé qui permet uneWe have now found a new process which allows
FEUILLE DE REMPLACEMENT extraction liquide-liquide du cholestérol non estérifié. Ce procédé est applicable à l'élimination du cholestérol à partir de matières grasses animales utilisées en alimentation humaine et plus particulièrement à l'extraction du cholestérol à partir de matières grasses laitières et notamment du beurre déshydraté ou non.REPLACEMENT SHEET liquid-liquid extraction of unesterified cholesterol. This process is applicable to the elimination of cholesterol from animal fats used in human food and more particularly to the extraction of cholesterol from milk fats and in particular dehydrated butter or not.
Le beurre est une émulsion constituée d'une phase huileuse et d'une phase aqueuse. La première est constituée essentiellement de triacylglycérol, de diglycérides et de phospholipides. Elle contient la quasi totalité du cholestérol. Cette phase huileuse constitue la matière grasse laitière anhydre ci-dessous dénommée MGLA. La phase aqueuse est constituée de caséine, lactoglobuline lactose et sels minéraux.Butter is an emulsion consisting of an oily phase and an aqueous phase. The first consists essentially of triacylglycerol, diglycerides and phospholipids. It contains almost all of the cholesterol. This oily phase constitutes the anhydrous milk fat below called MGLA. The aqueous phase consists of casein, lactoglobulin lactose and mineral salts.
Le procédé selon l'invention est réalisé sur la phase huileuse : la MGLA à laquelle on ajoute une solution aqueuse saline additionnée d'un sel biliaire et d'un ou plusieurs mono- ou di- esters de glycérol.The process according to the invention is carried out on the oily phase: MGLA to which an aqueous saline solution is added with the addition of a bile salt and one or more glycerol mono- or di-esters.
Le procédé selon l'invention consiste à appauvrir la phase huileuse en cholestérol par action de la solution aqueuse détergente, à laisser décanter cette phase aqueuse puis à l'éliminer.The method according to the invention consists in depleting the oily phase in cholesterol by the action of the aqueous detergent solution, in allowing this aqueous phase to settle and then in eliminating it.
Ainsi la présente invention se réfère à un procédé d'extraction du cholestérol d'une matière grasse animale caractérisé en ce que : a) on ajoute à la matière grasse laitière anhydre une solution aqueuse saline contenant un sel biliaire et un ou plusieurs mono- ou di- esters du glycérol ; b) on forme une émulsion fine ; c) on décante le mélange ; d) on sépare la phase aqueuse contenant le cholestérol extrait pour obtenir la matière grasse laitière anhydre appauvrie en cholestérol.Thus, the present invention refers to a process for the extraction of cholesterol from an animal fat, characterized in that: a) an aqueous saline solution containing a bile salt and one or more mono- or glycerol diesters; b) a fine emulsion is formed; c) the mixture is decanted; d) the aqueous phase containing the extracted cholesterol is separated in order to obtain the anhydrous milk fat depleted in cholesterol.
On peut éventuellement répéter l'ensemble des opérations pour diminuer encore la teneur en cholestérol de la matière grasse.You can optionally repeat all of the operations to further decrease the cholesterol content of the fat.
Le volume de la solution aqueuse ajoutée est égal au volume de la matière grasse traitée ou supérieur jusqu'à représenter 60 fois le volume de la matière grasse traitée : au moins 1 volume d'eau pour 1 volume MGLA.The volume of the added aqueous solution is equal to the volume of the fat treated or greater until representing 60 times the volume of the fat treated: at least 1 volume of water for 1 volume of MGLA.
Comme sel biliaire, on utilise préférentiellement un cholate, par exemple le cholate de sodium.As bile salt, a cholate is preferably used, for example sodium cholate.
Les esters du glycérol mis en oeuvre sont des monoesters ou des diesters d'acides gras insaturés.The glycerol esters used are monoesters or diesters of unsaturated fatty acids.
Comme monoester du glycérol, on peut utiliser le monooleate de glycérol ou monooléine. On peut également utiliser un mélange de monp- ou di- esters d'un ou plusieurs acides gras insaturés. Par exemple, on peut utiliser le DIMODAN LS (marque déposée), le PECEOL (marque déposée) ou le GELEOL (marque déposée).As the glycerol monoester, glycerol monooleate or monolein can be used. It is also possible to use a mixture of monp- or diesters of one or more unsaturated fatty acids. For example, you can use DIMODAN LS (registered trademark), PECEOL (registered trademark) or GELEOL (registered trademark).
Le DIMODAN LS est commercialisé par Grinsted ; c'est un distillât d'huile de tournesol alcoolisé par le glycérol ; il est constitué à 90 % de monoglycérides d'acides linoléïque et oléïque dans la proportion d'environ 3 acides linoléïques pour 1 acide oléïque.DIMODAN LS is marketed by Grinsted; it is a distillate of sunflower oil alcoholized with glycerol; it consists of 90% monoglycerides of linoleic and oleic acids in the proportion of approximately 3 linoleic acids per 1 oleic acid.
Le PECEOL est commercialisé par Gattefossé ; c'est un mélange de monooleate et de dioleate de glycérol contenant environ 0 % de monoester et 60 % de diester.PECEOL is marketed by Gattefossé; it is a mixture of monooleate and glycerol dioleate containing approximately 0% monoester and 60% diester.
Le GELEOL est commercialisé par Gattefossé ; c'est un mélange d'esters palmitique et stéarique de glycérol contenant environ 4-0 % de monoester et 60 % de diester.GELEOL is marketed by Gattefossé; it is a mixture of palmitic and stearic esters of glycerol containing approximately 4-0% of monoester and 60% of diester.
La concentration molaire en sel biliaire dans la solution aqueuse peut varier de 0,01 M a 1 M.The molar concentration of bile salt in the aqueous solution can vary from 0.01 M to 1 M.
La concentration molaire en mono- ou di- ester de gly¬ cérol dans la solution aqueuse peut varier de 0,01 M à 1 M.The molar concentration of mono- or di-ester of glycerol in the aqueous solution can vary from 0.01 M to 1 M.
Le rapport de la concentration molaire en sel biliaire à la concentration molaire en mono- ou di- ester de glycetol peut varier de 0,5 à 10.The ratio of the molar concentration of bile salt to the molar concentration of mono- or di-glycetol ester can vary from 0.5 to 10.
La concentration en chlorure de sodium peut varier de 0,05 M à 0,2 M.The sodium chloride concentration can vary from 0.05 M to 0.2 M.
Préférentiellement, la concentration molaire en sel biliaire est comprise entre 0,3 M et 0,6 M, la concentration molaire en mono- ou di- ester de glycérol est comprise entre 0,3 M et 0,6 M et le rapport est compris entre 0,5 et 2.Preferably, the molar concentration of bile salt is between 0.3 M and 0.6 M, the molar concentration of glycerol mono- or di-ester is between 0.3 M and 0.6 M and the ratio is understood between 0.5 and 2.
Pour réaliser 1 'émulsion de la matière grasse et de la phase aqueuse, on peut agiter fortement ou utiliser une sonde à ultrasons.To produce the emulsion of the fatty substance and of the aqueous phase, it is possible to shake vigorously or use an ultrasonic probe.
L'agitation est maintenue pendant un temps compris entreAgitation is maintained for a time between
~h^ ^τ 30 minutes et 4 heures, préférentiellement pendant 2 heures. ~ h ^ ^ τ 30 minutes and 4 hours, preferably for 2 hours.
On peut accélérer la décantation spontanée par centrifugation du mélange ou adjonction d'une quantité suffisante de solution saline concentrée.Spontaneous decantation can be accelerated by centrifuging the mixture or adding a sufficient amount of concentrated saline solution.
L'ensemble du procédé est effectué à une température comprise entre 20°C et 45°C, de préférence à une température comprise entre 25°C et 37°C.The whole process is carried out at a temperature between 20 ° C and 45 ° C, preferably at a temperature between 25 ° C and 37 ° C.
Différentes études analytiques ont permis de montrer que seul le cholestérol est extrait de la MGLA par le procédé selon l'invention.Different analytical studies have shown that only cholesterol is extracted from MGLA by the method according to the invention.
L'analyse du taux de cholestérol dans les 2 phases a été faite par utilisation du cholestérol radioactif ou par application d'une méthode anzymatique mettant en jeu la cholestérol oxydase (Clin. Chim. Acta, 1975, 64_, 337-34-1).The analysis of the cholesterol level in the 2 phases was made by the use of radioactive cholesterol or by application of an anzymatic method involving cholesterol oxidase (Clin. Chim. Acta, 1975, 64_, 337-34-1) .
Les exemples suivants illustrent l'invention sans toutefois la limiter.The following examples illustrate the invention without, however, limiting it.
EXEMPLE 1EXAMPLE 1
On prépare une solution contenant 5 g de solution salin 0,15 M, 2,5 g (5,8 mmoles) de cholate de sodium et 2,5 g (6,3 mmoles) de DIMODAN LS (marque déposée). A 30°C, on ajoute cette solution aqueuse (pH = 8) à 5 g de MGLA. On laisse 1'émulsion formée sous agitation pendant 2 heures. Le moyen d'agitation utilisé est une sonde à ultrasons. Oh ajoute du chlorure de sodium solide jusqu'à atteindre la concentration de 2 M, et la phase aqueuse décante. Après séparation de la phase aqueuse, on obtient la MGLA appauvrie en cholestérol.A solution containing 5 g of 0.15 M saline, 2.5 g (5.8 mmol) of sodium cholate and 2.5 g (6.3 mmol) of DIMODAN LS (registered trademark) is prepared. At 30 ° C., this aqueous solution (pH = 8) is added to 5 g of MGLA. The emulsion formed is left under stirring for 2 hours. The stirring means used is an ultrasonic probe. Oh add solid sodium chloride until the concentration of 2 M is reached, and the aqueous phase settles. After separation of the aqueous phase, the cholesterol-depleted MGLA is obtained.
Pour mesurer le rendement de l'extraction selon le procédé décrit, on peut reprendre cet exemple en additionnant à la MGLA de départ 5 microcuries de cholestérol marqué au Carbone 14-. Par comptage en scintillation liquide, on mesure le cholestérol présent dans la MGLA avant l'extraction et le cholestérol présent dans la phase aqueuse après l'extraction. Le rendement d'extraction du cholestérol est de 70 %.To measure the yield of the extraction according to the method described, this example can be repeated by adding to the starting MGLA 5 microcuries of carbon-labeled cholesterol. By liquid scintillation counting, the cholesterol present in the MGLA before the extraction and the cholesterol present in the aqueous phase after the extraction are measured. The cholesterol extraction yield is 70%.
L'opération d'extraction décrite peut être répétée 1 ou 2 fois. On obtient ainsi une MGLA de laquelle 97 % du cholestérol a été extrait.The extraction operation described can be repeated 1 or 2 times. An MGLA is thus obtained from which 97% of the cholesterol has been extracted.
MP CEMENT EXEMPLE 2MP CEMENT EXAMPLE 2
Selon un autre mode de réalisation, on a utilisé comme ester de glycérol le PECEOL (marque déposée) commercialisé par Gattefossé. En opérant sur 1 g de MGLA mélangé à 60 g de solution saline contenant 0,43 g de PECEOL et 0,52 g de cholate de sodium, le rendement d'extraction du cholestétol est de 0 %.According to another embodiment, PECEOL (registered trademark) sold by Gattefossé was used as the glycerol ester. By operating on 1 g of MGLA mixed with 60 g of saline solution containing 0.43 g of PECEOL and 0.52 g of sodium cholate, the cholestetol extraction yield is 0%.
EXEMPLE 3EXAMPLE 3
Selon un autre mode de réalisation, on a utilisé comme ester de glycérol le monooleate de glycérol ou monooléine.According to another embodiment, glycerol monooleate or monoolein was used as the glycerol ester.
On prépare une solution contenant 5 g de solution saline 0,15 M, 0,52 g de cholate de sodium et 0,85 g de monooléine. A 22°C, on ajoute cette solution aqueuse à 1 g de MGLA. On laisse l'émulsion formée sous agitation par une sonde à ultrasons pendant 2 heures. On ajoute du chlorure de sodium solide jusqu'à atteindre la concentration 2 M et la phase aqueuse décante. Le rendement de l'extraction du cholestérol est de 50 %.A solution containing 5 g of 0.15 M saline, 0.52 g of sodium cholate and 0.85 g of monoolein is prepared. At 22 ° C, this aqueous solution is added to 1 g of MGLA. The emulsion formed is left under stirring by an ultrasonic probe for 2 hours. Solid sodium chloride is added until the concentration is 2 M and the aqueous phase decanted. The yield of cholesterol extraction is 50%.
FEUILLE DERE FE U ITY DERE

Claims

R E V E N D I C A T I-O S R E V E N D I C A T I-O S
1) Procédé d'extraction du cholestérol d'une matière grasse animale caractérisé en ce que : a) on ajoute à la matière grasse laitière anhydre une solution aqueuse saline contenant un sel biliaire et un ou plusieurs mono- ou di- esters du glycérol, b) on forme une émulsion fine, c) on décante le mélange, d) on sépare la phase aqueuse contenant le cholestérol extrait pour obtenir la matière grasse laitière anhydre appauvrie en cholestérol. e) et éventuellement, on répète les opérations a, b, c, d.1) Process for extracting cholesterol from an animal fat, characterized in that: a) an aqueous saline solution containing a bile salt and one or more glycerol mono- or diesters is added to the anhydrous milk fat, b) a fine emulsion is formed, c) the mixture is decanted, d) the aqueous phase containing the extracted cholesterol is separated to obtain the anhydrous milk fat depleted in cholesterol. e) and optionally, the operations a, b, c, d are repeated.
2) Procédé selon la revendication 1 caractérisé en ce que la solution saline est une solution de chlorure de sodium à une concentration de 0,15 M.2) Method according to claim 1 characterized in that the saline solution is a sodium chloride solution at a concentration of 0.15 M.
3) Procédé selon la revendication 1 caractérisé en ce que le sel biliaire ajouté dans la solution aqueuse est un sel de cholate dont la concentration molaire est comprise entre 0,01 M et 1 M.3) Method according to claim 1 characterized in that the bile salt added to the aqueous solution is a cholate salt whose molar concentration is between 0.01 M and 1 M.
4-) Procédé selon la revendication 1 caractérisé en ce que l'ester de glycérol ajouté dans la solution aqueuse est un mono- ou di- ester d'un ou plusieurs acides gras insaturés du glycérol dont la concentration molaire est compris entre 0,01 M et 1 M.4-) Method according to claim 1 characterized in that the glycerol ester added in the aqueous solution is a mono- or di- ester of one or more unsaturated fatty acids of glycerol whose molar concentration is between 0.01 M and 1 M.
5) Procédé selon les revendications 1 et 3 caractérisé en ce que l'ester de glycérol ajouté dans la phase aqueuse est choisi parmi les esters suivants : monooléine, DIMODAN LS (marque déposée), PECEOL (marque déposée) ou GELEOL (marque déposée) .5) Method according to claims 1 and 3 characterized in that the glycerol ester added in the aqueous phase is chosen from the following esters: monoolein, DIMODAN LS (registered trademark), PECEOL (registered trademark) or GELEOL (registered trademark) .
6) Procédé selon la revendication 1 caractérisé en ce que le rapport entre la concentration molaire en sel biliaire et la concentration molaire mono- ou di- ester de glycérol est comprise entre 0,5 et 10.6) Method according to claim 1 characterized in that the ratio between the molar concentration of bile salt and the mono- or di-glycerol molar concentration is between 0.5 and 10.
7) Procédé selon les revendications 1 à 5 caractérisé en ce que : a) on ajoute à la matière grasse laitière anhydre une solution aqueuse de chlorure de sodium 0,15 M contenant un sel de cholate à une concentration molaire comprise entre 0,3 M et 0,6 M, un mono- ou di- ester de glycérol à une concentration molaire comprise entre 0,3 M et 0,6 M, b) on forme une émulsion fine par agitation pendant un temps compris entre 30 minutes et 4- heures, c) on décante le mélange, d) on sépare la phase aqueuse contenant le cholestérol extrait pour obtenir la matière grasse laitière anhydre appauvrie en cholestérol.7) Method according to claims 1 to 5 characterized in that: a) is added to the anhydrous milk fat an aqueous solution of sodium chloride 0.15 M containing a cholate salt at a molar concentration between 0.3 M and 0.6 M, a mono- or di-ester of glycerol at a molar concentration of between 0.3 M and 0.6 M, b) a fine emulsion is formed by stirring for a time between 30 minutes and 4- hours, c) the mixture is decanted, d) the aqueous phase containing the extracted cholesterol is separated to obtain the anhydrous milk fat depleted in cholesterol.
8) Matière grasse laitière anhydre appauvrie en cholestérol caractérisée en ce qu'elle est obtenue par le procédé selon l'une quelconque des revendications 1 à 6.8) Anhydrous milk fat depleted in cholesterol, characterized in that it is obtained by the process according to any one of claims 1 to 6.
FEUILLE DE REMPLACEMENT REPLACEMENT SHEET
EP89908224A 1988-07-05 1989-06-30 Process for extracting cholesterol from a fat of animal origin Pending EP0423204A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809093 1988-07-05
FR8809093A FR2633936B1 (en) 1988-07-05 1988-07-05 PROCESS FOR THE EXTRACTION OF CHOLESTEROL CONTAINED IN FAT MATERIAL OF ANIMAL ORIGIN

Publications (1)

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EP0423204A1 true EP0423204A1 (en) 1991-04-24

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EP89908224A Pending EP0423204A1 (en) 1988-07-05 1989-06-30 Process for extracting cholesterol from a fat of animal origin
EP89401892A Withdrawn EP0350379A1 (en) 1988-07-05 1989-06-30 Process for extracting cholesterol from a fatty material of animal origin

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Application Number Title Priority Date Filing Date
EP89401892A Withdrawn EP0350379A1 (en) 1988-07-05 1989-06-30 Process for extracting cholesterol from a fatty material of animal origin

Country Status (5)

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EP (2) EP0423204A1 (en)
AU (1) AU3871189A (en)
FR (1) FR2633936B1 (en)
NZ (1) NZ229800A (en)
WO (1) WO1990000590A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0442184A1 (en) * 1990-02-15 1991-08-21 Campbell Soup Company Production of low cholesterol animal fat by short path distillation
DE4013367A1 (en) * 1990-04-26 1991-10-31 Sueddeutsche Kalkstickstoff METHOD FOR REMOVING CHOLESTERIN OR CHOLESTERINE STARS FROM EGG YELLOW
DE4029287A1 (en) * 1990-09-14 1992-03-19 Sueddeutsche Kalkstickstoff METHOD FOR PRODUCING CHOLESTERIN-REDUCED EGG YELLOW
BE1007151A3 (en) * 1993-06-18 1995-04-11 Tirtiaux Fractionnement Degumming method of fats and fats obtained.
DE102004037106A1 (en) * 2004-07-21 2006-02-16 Westfalia Separator Ag Method for reducing the cholesterol content in oils or fats

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
FR2314721A2 (en) * 1975-04-23 1977-01-14 Henry Michel Antihypercholesterolaemic compsn. - of deconjugated bile acid or a salt and dried whole pancreas, esp. contg. sodium deoxycholate
EP0084052A1 (en) * 1981-07-23 1983-07-27 Arthur D. Little, Inc. Micellular drug delivery system
NZ216680A (en) * 1985-06-28 1988-10-28 Dallas Varney Chapman Extracting fat and cholesterol from meat
FR2601959B1 (en) * 1986-07-24 1988-12-02 Monserbio Gie PROCESS FOR REMOVAL OF CHOLESTEROL FROM ANIMAL FATTY MATERIAL AND DEPLETED CHOLESTEROL FATTY MATERIAL OBTAINED

Non-Patent Citations (1)

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Title
See references of WO9000590A1 *

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NZ229800A (en) 1990-12-21
EP0350379A1 (en) 1990-01-10
AU3871189A (en) 1990-02-05
WO1990000590A1 (en) 1990-01-25
FR2633936B1 (en) 1991-04-12
FR2633936A1 (en) 1990-01-12

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