WO1994005650A1 - Gewinnung von tocopherol und sterol - Google Patents
Gewinnung von tocopherol und sterol Download PDFInfo
- Publication number
- WO1994005650A1 WO1994005650A1 PCT/EP1993/002207 EP9302207W WO9405650A1 WO 1994005650 A1 WO1994005650 A1 WO 1994005650A1 EP 9302207 W EP9302207 W EP 9302207W WO 9405650 A1 WO9405650 A1 WO 9405650A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixture
- tocopherol
- sterol
- lower alcohol
- fatty acids
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A23B2/00—Preservation of foods or foodstuffs, in general
- A23B2/70—Preservation of foods or foodstuffs, in general by treatment with chemicals
- A23B2/725—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of liquids or solids
- A23B2/729—Organic compounds; Microorganisms; Enzymes
- A23B2/771—Organic compounds containing hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
Definitions
- the invention relates to a process for the simultaneous recovery of tocopherol and sterol from a mixture containing tocopherol, fats and / or fat derivatives, in particular fatty acids, and sterol and / or sterol derivatives, in particular a damper distillate of natural oils and fats.
- Tocopherol compounds are found in many vegetable and animal oils and are also known as vitamin E.
- vitamin E refers to the physiological effect of these food ingredients.
- the second group of substances with vitamin E activity are the derivatives of tocotrienol. They differ from the other tocopherol homologs by the unsaturated isoprenoid side chain with 16 carbon atoms.
- the naturally occurring toco-enols also show a vitamin E effect and are usually isolated together with the saturated tocopherol homologs from their natural sources when vitamin E is obtained.
- the term “tocopherol” is also intended to include these tocopherol homologs, that is to say all substances with a vitamin E effect. Because of their antioxidant properties, the tocopherols are used in the food and cosmetic-pharmaceutical sectors and as an additive in paints based on natural oils.
- sterol in this application includes the sterols, which are also called sterols. Both terms “sterol” and “sterol” are used synonymously in this patent application.
- the sterols are 1-valent secondary steroid alcohols with 27 to 30 carbon atoms, which have the basic structure of the gonan.
- the carbon atom 3 of the gonan carries the hydroxyl group.
- the structural differences between the individual sterols found so far in nature consist in the occurrence of double bonds within the ring system, in the entry of substituents at preferred locations and in the constitution of the side chain which is anchored to the carbon atom 17 of the gonan.
- sterol The most important representative of sterols is cholesterol, which is found free or esterified in animal organs and fluids, especially in the brain, spinal cord, adrenal glands, cod liver oil and wool fat.
- Cholesterol belongs to the so-called zoosterols, which are used to describe the sterols contained in animal fats.
- the plant sterols are called phytosterols.
- the main representatives are Ergosterin, Stigmasterjn, Campesterin and Sitosterin.
- the sterols or sterols are valuable starting materials in the synthesis of pharmaceuticals, in particular steroid hormones, e.g. Corticosteroids and progestogens. For example, stigmasterol can easily be converted to progesterone.
- the starting mixtures for the recovery of tocopherol and sterol can be a variety of vegetable and animal substances.
- the highest concentrations of tocopherol are found in vegetable oils such as wheat germ, corn, soybean and palm kernel oil.
- tocopherol is also found in other vegetable oils, for example safflower oil, peanut oil, cotton seed oil, sunflower oil, rapeseed oil, palm oil and other vegetable oils.
- the natural vegetable oils contain only small amounts of tocopherol. Concentration is desirable for commercial applications. Contaminants are also to be separated in order to remove the antioxidant Effect and enhance vitamin E activity.
- the most important natural sources of tocopherol are therefore not the vegetable oils themselves, but rather the water vapor distillates obtained in the deodorization of vegetable and animal oils, which are also called damper distillates.
- the tocopherols are concentrated, but mixed with sterol and sterol esters, free fatty acids and triglycerides.
- the distillate from the deodorization of soybean oil is particularly interesting. The special suitability of soybean oil as a source of tocopherols is described, for example, in Fat Sei. Technol., 91st year, 1989, pp.
- the So damper distillate contains about 10% by mass of mixed tocopherols and sterols of the same order of magnitude, the majority of which are present in their ester form.
- tocopherol concentrates according to DE 3126 110 A1 are obtained from by-products of the deodorization of oils and fats by esterifying the free fatty acids contained therein by addition of an alcohol or distilling off the free fatty acids from the distillates, whereupon these products are one Hydrogenation and then a solvent fractionation to extract the tocopherols are subjected.
- Another method for concentrating tocopherol is known from the same document.
- the deodorization distillates are subjected to a transesterification with methanol and the fatty acid methyl esters are distilled off. The residue is concentrated by molecular distillation.
- GB 2 145 079 A describes the use of acidic ion exchangers as catalysts for the esterification of free fatty acids contained in rapeseed oil distillate with 5 parts by volume of methanol, based on 1 part by volume of deodorizing distillate. Since components insoluble in methanol precipitate out, the esterification is carried out in a fluidized bed. The necessity of the fluidized bed leads to a complex process, the economic viability of which is questionable in large-scale implementation.
- the extraction processes often have to be matched to the starting mixture, since the accompanying substances therein have a strong influence on the extraction and the desired valuable products tocopherol and sterol with the same extraction process and different starting mixtures do not always go to the desired phase.
- the known extraction processes also use solvents which are harmful to health.
- Ion exchangers have a specific effect on the starting material, require thorough pre-cleaning of the mixture and do not allow simultaneous concentration of tocopherol and sterol.
- tocopherol is subjected to molecular distillation or steam distillation after esterification of the free fatty acids by means of polyhydric alcohols in order to obtain a distillate with a high tocopherol content.
- the molecular distillation process step is in tech ⁇ African scale uneconomical, and the steam distillation leads to a higher thermal load, which at least partially destroys the sterols. In the latter case, only the more thermally stable tocopherol can be obtained in good yield.
- the invention is therefore based on the object of providing a process for the simultaneous recovery of tocopherol and sterol which can be used for many different starting mixtures and which works without toxicologically and ecologically questionable solvents, is thermally gentle, achieves good yields and is economical in technical terms Scale is feasible.
- esterifying free fatty acids present in the mixture with a lower alcohol preferably methanol, esterifying 0.4 to 1.6, in particular 1 to 1.5, parts by volume of mixture with one part by volume of the lower alcohol,
- the conversion catalyst and, if appropriate, the glycerol present are separated off, in particular by washing, 5) the fatty acid alkyl ester, in particular after removal of the transesterification catalyst, is distilled off from the mixture and
- a first step the free fatty acids contained in the starting mixture are reacted with a lower alcohol to form fatty acid alkyl esters, in particular fatty acid methyl esters, in order to exclude a saponification reaction with the esterification catalyst used in the next step.
- This first step can be omitted in the case of mixtures without free fatty acids.
- the transesterification the sterol fatty acid esters are converted to sterol and fatty acid methyl ester.
- the partial and triglycerides react to glycerol and fatty acid methyl ester.
- the tocopherol contained in the mixture does not react.
- tocopherols not only tocopherols, but also tocopherol esters are present in the starting mixture, for example in the soybean oil steamer distillate with 0.5% by mass.
- the esters are converted into tocopherols.
- the distillation of the excess lower alcohol it is particularly advantageous if an alcohol which is as short-chain as possible, in particular methanol, has been used in the previous stages. In this way, the thermal load can be kept low.
- the fatty acid alkyl esters are distilled off, in addition to the removal of the glycerol, which is formed in the transesterification stage from any triglycerides present, it is also advisable to remove the transesterification catalyst.
- the catalyst is essentially in the form of alkali soap, which can interfere with the distillation and could, for example, increase the boiling point.
- a great advantage of the process according to the invention lies in the versatility of application to different mixtures containing tocopherol and sterol.
- soybean oil Damper style runs out This is obtained by steam distillation of the raw soybean oil as the first step in the deodorization process.
- the distillate contains approximately 20% sterol, 8% tocopherol, 20% free fatty acids and, as the main constituent, triglycerides (Ullmann, loc. Cit.).
- Damper distillates from other oils can also be processed with the process, for example rapeseed oil distillates.
- the process is not limited to steam distillates of vegetable oils and fats. It can also be used advantageously on tall oil.
- Tall oil is one of the economically most important by-products of the cellulose sulfate process in paper manufacture. It is obtained by acidifying the sodium salt mixture of resin and fatty acids obtained in this process.
- Tall oil is a natural mixture of resin acids of the abietic acid type, saturated and unsaturated fatty acids as well as fatty acid esters and unsaponifiables. In addition to higher alcohols and hydrocarbons, the unsaponifiable matter also contains sterols.
- mixtures containing tocopherol can also be worked up using the process according to the invention, for example the residue obtained in the production of rapeseed oil methyl ester, which also contains sterols and sterol esters.
- the fatty acids are esterified in the presence of a strongly acidic ion exchanger, in particular in a fixed bed reactor, at temperatures from 60 to 100 ° C., in particular from 65 to 70 ° C.
- a strongly acidic ion exchanger in particular in a fixed bed reactor
- the ratio of the volume flows between damper distillate and lower alcohol is between 1.1 and 1.7 and preferably at 1.4.
- the residence time in the fixed bed reactor is 1 to 2, preferably 1.6 hours. This information refers to the actually available free volume.
- the fatty acids present in the mixture are converted to fatty acid alkyl esters at the active centers of the strongly acidic ion exchanger.
- the excess lower alcohol ie usually methanol
- the alcohol also contains the major part of the water formed during the esterification.
- the catalyst and any glycerol present are removed from the mixture.
- the catalyst is preferably neutralized beforehand by acidification with an inorganic acid.
- Soybean steam distillate with an acid number of 70 was poured into a 0.3 m long glass column with a volume flow of 0.094 l / h together with 0.067 l / h methanol, with catalyst, namely with a strongly acidic, macroporous ion exchange resin (Lewatit K 2631) , promoted.
- the diameter of the column was 0.07.
- the mixture was collected in a glass container after a residence time of 1.6 h and decanted.
- a subsequent evaporation to separate the methanol / water mixture from the fat phase was carried out under vacuum.
- a final acid number gave a value of 1.3. This corresponded to a conversion of 98%, with a negligible loss of tocopherol.
- the material has thus been deacidified for the subsequent transesterification step.
- the soybean steam distillate deacidified in the first step with an acid number of about 1 was brought into contact with methanol and the basic catalyst in a stirred reactor.
- the reaction temperature was between 60 and 90 ° C, preferably 65 ° C.
- Based on the used Soybean steam distillate was 40-80% methanol (preferably 50-60%) and 0.8-1.5% catalyst (preferably 1%).
- Sodium methylate was preferably used as the catalyst.
- Other basic catalysts are also possible, such as sodium, potassium and lithium hydroxide, etc.
- the reaction time at 65 ° C. was about 2 hours. After the transesterification, at least 90% of the sterol esters and at least 95% of the glycerides were converted.
- the starting mixture contained around 6% free sterols; after transesterification, after deduction of the methanol content, 16% was determined.
- the initial glyceride content decreased from 25% to 1.2%. 90% of the glycerides were monoglycerides. Triglycerides were no longer detectable.
- the demethanolized reaction mixture contained the catalyst used mainly in the form of the alkali soap.
- the demethanolized soy steamer distillate was acidified with 148 g of 3% hydrochloric acid and washed with 1.1 kg of water. Both phases were separated in the decanter.
- Example 5 Methyl Ester Separation After distillation of the methyl ester formed from the product from Example 4, a mixture was obtained which contained 40% by weight of free sterols and 30% by weight of tocopherols as main components.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Pyrane Compounds (AREA)
- Fats And Perfumes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Steroid Compounds (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK93919091T DK0656894T4 (da) | 1992-08-27 | 1993-08-18 | Udvinding af tocopherol og sterol |
| BR9306967A BR9306967A (pt) | 1992-08-27 | 1993-08-18 | Obtenção de tocoferol e esterol |
| DE59308185T DE59308185D1 (de) | 1992-08-27 | 1993-08-18 | Gewinnung von tocopherol und sterol |
| JP50679994A JP3746292B2 (ja) | 1992-08-27 | 1993-08-18 | トコフェロールおよびステロールの回収 |
| CA002143441A CA2143441C (en) | 1992-08-27 | 1993-08-18 | Recovery of tocopherol and sterol |
| US08/387,933 US5627289A (en) | 1992-08-27 | 1993-08-18 | Recovery of tocopherol and sterol from tocopherol and sterol containing mixtures of fats and fat derivatives |
| EP93919091A EP0656894B2 (de) | 1992-08-27 | 1993-08-18 | Gewinnung von tocopherol und sterol |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4228476A DE4228476C2 (de) | 1992-08-27 | 1992-08-27 | Verfahren zum Gewinnen von Tocopherol und/oder Sterin |
| DEP4228476.7 | 1992-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994005650A1 true WO1994005650A1 (de) | 1994-03-17 |
Family
ID=6466542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1993/002207 Ceased WO1994005650A1 (de) | 1992-08-27 | 1993-08-18 | Gewinnung von tocopherol und sterol |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5627289A (de) |
| EP (1) | EP0656894B2 (de) |
| JP (1) | JP3746292B2 (de) |
| AT (1) | ATE163416T1 (de) |
| BR (1) | BR9306967A (de) |
| CA (1) | CA2143441C (de) |
| DE (2) | DE4228476C2 (de) |
| DK (1) | DK0656894T4 (de) |
| ES (1) | ES2112427T5 (de) |
| MY (1) | MY111793A (de) |
| WO (1) | WO1994005650A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179535A1 (de) * | 2000-08-07 | 2002-02-13 | Cognis Deutschland GmbH | Verfahren zur Gewinnung von Sterinen |
| WO2002012222A1 (de) * | 2000-08-07 | 2002-02-14 | Cognis Deutschland Gmbh & Co. Kg | Verfahren zur (rück)gewinnung von sterinen und tocopherolen |
| WO2004080942A1 (en) * | 2003-02-21 | 2004-09-23 | Cognis Brasil Ltda. | Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
| EP1179536A3 (de) * | 2000-08-07 | 2005-06-08 | Cognis Deutschland GmbH & Co. KG | Verfahren zur Gewinnung von Sterinen aus fettsäurehaltigen Rückständen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE289301T1 (de) * | 1993-08-06 | 2005-03-15 | Cognis Corp | Wiedergewinnung von tocopherolen |
| US5703252A (en) * | 1995-12-13 | 1997-12-30 | Henkel Corporation | Recovery of Tocopherols |
| FR2787714B1 (fr) | 1998-12-23 | 2003-01-31 | Pharmascience Lab | Utilisation d'insaponifiables d'huiles vegetales pour la preparation d'un medicament stimulant l'expression du tgf-beta ou l'expression de l'inhibiteur pai-1 de l'activateur du plasminogene |
| DE19906551C1 (de) | 1999-02-13 | 2000-06-29 | Cognis Deutschland Gmbh | Verfahren zur Herstellung von Phytosterinen |
| DE19916034C1 (de) * | 1999-04-09 | 2000-08-03 | Cognis Deutschland Gmbh | Verfahren zur Gewinnung von Phytosterinen |
| MY127954A (en) | 1999-11-04 | 2007-01-31 | Malaysian Palm Oil Board | A method of chromatographic isolation for non-glyceride components |
| US6414166B1 (en) | 1999-12-29 | 2002-07-02 | National Science Council | Process for preparing tocopherol concentrates |
| BR0115907B1 (pt) | 2000-12-04 | 2011-10-04 | processo para o tratamento prévio de óleos crus e graxas cruas para uma subsequente transesterificação alcalina com álcoois primários e/ou secundários e processo para a produção de ésteres de ácido graxo de álcoois primários e/ou secundários a partir de óleos crus ou graxas cruas que contém ácidos graxos livres e substáncias mucilaginosas ou a partir de óleos velhos carregados com ácidos graxos livres da indústria alimentìcia. | |
| DE60133460D1 (de) | 2001-09-07 | 2008-05-15 | Raisio Staest Oy | Verfahren zur Isolierung von Sterinen und/oder Wachsalkoholen aus Talölprodukten |
| US7293047B2 (en) * | 2003-10-23 | 2007-11-06 | Microsoft Corporation | Synchronization view |
| US20080015367A1 (en) * | 2006-07-11 | 2008-01-17 | Wiley Organics, Inc. | Process for isolating phytosterols and tocopherols from deodorizer distillate |
| US20080282606A1 (en) * | 2007-04-16 | 2008-11-20 | Plaza John P | System and process for producing biodiesel |
| WO2009113935A1 (en) * | 2008-03-10 | 2009-09-17 | Sunpine Ab | Recovery of phytosterols from residual vegetable oil streams |
| CA2774343A1 (en) * | 2009-09-15 | 2011-03-24 | Council Of Scientific & Industrial Research | A process for conversion of low cost and high ffa oils to biodiesel |
| PL2635592T5 (pl) | 2010-11-03 | 2025-09-08 | Verbio Se | Sposób otrzymywania fitosteroli i/lub tokoferoli z pozostałości po destylacji estrów olejów roślinnych, korzystnie z pozostałości po destylacji z transestryfikacji olejów roślinnych |
| ES2556788T3 (es) | 2011-04-14 | 2016-01-20 | Alfa Laval Corporate Ab | Un proceso para la esterificación autocatalítica de ácidos grasos |
| US20150125052A1 (en) * | 2012-06-05 | 2015-05-07 | Agency For Science, Technology And Research | Drusen lesion image detection system |
| CN105492006B (zh) * | 2013-08-30 | 2022-02-25 | 因温特国际有限公司 | 从脂类混合物中分离或纯化维生素e、生育酚和生育三烯酚的方法 |
| CN103467432B (zh) * | 2013-09-16 | 2016-08-17 | 四川省仁德制药有限公司 | 一种从毛叶山桐子油脱臭馏出物中提取维生素e的方法 |
| WO2015047187A1 (en) | 2013-09-30 | 2015-04-02 | Aak Ab (Publ) | Enrichment of triterpene esters |
| DE102014009237A1 (de) | 2014-06-24 | 2015-12-24 | Weylchem Wiesbaden Gmbh | Verfahren zur Gewinnung von Vitamin E, Sterolen und/oder Terpenen aus öligen oder fettigen Gemischen biologischer Herkunft |
| WO2016075313A1 (en) | 2014-11-14 | 2016-05-19 | Basf Plant Science Company Gmbh | Materials and methods for increasing the tocopherol content in seed oil |
| CN105693683B (zh) * | 2014-11-28 | 2018-11-27 | 丰益(上海)生物技术研发中心有限公司 | 维生素e脱除塑化剂的方法 |
| MY193786A (en) | 2015-01-12 | 2022-10-27 | Ho Sue San David | Recovery of tocopherols/tocotrienols, carotenoids, glycerols, sterols and fatty acid esters from crude vegetable oil and the process thereof |
| MY176376A (en) * | 2015-02-06 | 2020-08-04 | Ho Sue San David | Recovery of tocopherols/tocotrienols, glycerine, sterols and fatty acid esters from vegetable oil distillate and the process thereof |
| JP6548087B2 (ja) * | 2015-05-18 | 2019-07-24 | 国立大学法人東北大学 | ビタミンe類の選択的な分離方法 |
| CN108033938B (zh) * | 2017-11-21 | 2021-06-15 | 合肥工业大学 | 一种采用酸性离子液体催化酯化和柱层析相结合从茶油脱臭馏出物提取生育酚的方法 |
| CA3146079A1 (en) | 2019-09-27 | 2021-04-01 | Valerie Eychenne | Process for the production and purification of sterols |
| EP4034620A1 (de) | 2019-09-27 | 2022-08-03 | Basf Se | Verfahren zur herstellung von sterolen und/oder tocopherolen unter rückgewinnung von nebenprodukten |
| CA3146266A1 (en) * | 2019-09-27 | 2021-04-01 | Basf Se | Process for the purification of phytosterol |
| SE545114C2 (en) * | 2021-06-24 | 2023-04-04 | Stora Enso Oyj | Fractionation of crude tall oil |
| WO2026062438A1 (en) * | 2024-09-17 | 2026-03-26 | Itelyum Regeneration S.p.A. | Recovery of fatty waste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1170126A (fr) * | 1954-09-23 | 1959-01-09 | Eastman Kodak Co | Procédé d'obtention de concentrés de tocophérol à partir de boues de désodorisation et produits obtenus |
| US3335154A (en) * | 1963-06-04 | 1967-08-08 | Eastman Kodak Co | Separation of tocopherols and sterols from deodorizer sludge and the like |
| EP0333472A2 (de) * | 1988-03-16 | 1989-09-20 | PALM OIL RESEARCH & DEVELOPMENT BOARD | Herstellung von hochkonzentrierten Tocoferolen und Tocotrienolen als Nebenprodukt des Palmöls |
| GB2218989A (en) * | 1987-12-15 | 1989-11-29 | Inst Penyelidikan Minyak Kelap | Recovery of carotenoids, tocopherols, tocotrienols and sterols from esterified palm oil |
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| DE3126110A1 (de) * | 1980-07-04 | 1982-04-01 | The Nisshin Oil Mills, Ltd., Tokyo | Verfahren zur gewinnung von tocopherol-konzentraten |
| JPS6042495A (ja) * | 1983-08-17 | 1985-03-06 | 日清製油株式会社 | 油脂脱臭留出物のメチルエステル化法 |
| GB8418274D0 (en) * | 1984-07-18 | 1984-08-22 | Inst Penyelidikan Minyak Kelap | Carboxylic acid esterification |
| EP0171009B1 (de) * | 1984-08-02 | 1991-05-22 | HENKEL CORPORATION (a Delaware corp.) | Reinigung von Tocopherolen durch Extraktion |
| DE3501761A1 (de) * | 1985-01-21 | 1986-07-24 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur vorveresterung freier fettsaeuren in rohfetten und/oder -oelen |
| DE3615029A1 (de) * | 1985-05-06 | 1986-11-06 | Henkel Corp., Minneapolis, Minn. | Methanol-extraktion von tocopherol |
-
1992
- 1992-08-27 DE DE4228476A patent/DE4228476C2/de not_active Expired - Fee Related
-
1993
- 1993-08-18 WO PCT/EP1993/002207 patent/WO1994005650A1/de not_active Ceased
- 1993-08-18 EP EP93919091A patent/EP0656894B2/de not_active Expired - Lifetime
- 1993-08-18 BR BR9306967A patent/BR9306967A/pt not_active Application Discontinuation
- 1993-08-18 DE DE59308185T patent/DE59308185D1/de not_active Expired - Fee Related
- 1993-08-18 ES ES93919091T patent/ES2112427T5/es not_active Expired - Lifetime
- 1993-08-18 US US08/387,933 patent/US5627289A/en not_active Expired - Lifetime
- 1993-08-18 JP JP50679994A patent/JP3746292B2/ja not_active Expired - Fee Related
- 1993-08-18 CA CA002143441A patent/CA2143441C/en not_active Expired - Fee Related
- 1993-08-18 AT AT93919091T patent/ATE163416T1/de not_active IP Right Cessation
- 1993-08-18 DK DK93919091T patent/DK0656894T4/da active
- 1993-08-24 MY MYPI93001694A patent/MY111793A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1170126A (fr) * | 1954-09-23 | 1959-01-09 | Eastman Kodak Co | Procédé d'obtention de concentrés de tocophérol à partir de boues de désodorisation et produits obtenus |
| US3335154A (en) * | 1963-06-04 | 1967-08-08 | Eastman Kodak Co | Separation of tocopherols and sterols from deodorizer sludge and the like |
| GB2218989A (en) * | 1987-12-15 | 1989-11-29 | Inst Penyelidikan Minyak Kelap | Recovery of carotenoids, tocopherols, tocotrienols and sterols from esterified palm oil |
| EP0333472A2 (de) * | 1988-03-16 | 1989-09-20 | PALM OIL RESEARCH & DEVELOPMENT BOARD | Herstellung von hochkonzentrierten Tocoferolen und Tocotrienolen als Nebenprodukt des Palmöls |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179535A1 (de) * | 2000-08-07 | 2002-02-13 | Cognis Deutschland GmbH | Verfahren zur Gewinnung von Sterinen |
| WO2002012222A1 (de) * | 2000-08-07 | 2002-02-14 | Cognis Deutschland Gmbh & Co. Kg | Verfahren zur (rück)gewinnung von sterinen und tocopherolen |
| US6815551B2 (en) | 2000-08-07 | 2004-11-09 | Cognis Deutschland Gmbh & Co. Kg | Processes for concentrating tocopherols and/or sterols |
| EP1179536A3 (de) * | 2000-08-07 | 2005-06-08 | Cognis Deutschland GmbH & Co. KG | Verfahren zur Gewinnung von Sterinen aus fettsäurehaltigen Rückständen |
| DE10038457B4 (de) * | 2000-08-07 | 2008-09-25 | Cognis Ip Management Gmbh | Verfahren zur Gewinnung von Sterinen und Tocopherolen |
| WO2004080942A1 (en) * | 2003-02-21 | 2004-09-23 | Cognis Brasil Ltda. | Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
| US9079845B2 (en) | 2003-02-21 | 2015-07-14 | Cognis Ip Management Gmbh | Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4228476C2 (de) | 2002-05-02 |
| JPH08500598A (ja) | 1996-01-23 |
| DK0656894T3 (da) | 1998-09-23 |
| DE59308185D1 (de) | 1998-04-02 |
| JP3746292B2 (ja) | 2006-02-15 |
| EP0656894B2 (de) | 2002-06-12 |
| DK0656894T4 (da) | 2002-07-15 |
| EP0656894B1 (de) | 1998-02-25 |
| EP0656894A1 (de) | 1995-06-14 |
| ES2112427T5 (es) | 2003-01-01 |
| MY111793A (en) | 2001-01-31 |
| ES2112427T3 (es) | 1998-04-01 |
| CA2143441C (en) | 2004-03-30 |
| DE4228476A1 (de) | 1994-03-03 |
| CA2143441A1 (en) | 1994-03-17 |
| BR9306967A (pt) | 1999-01-12 |
| ATE163416T1 (de) | 1998-03-15 |
| US5627289A (en) | 1997-05-06 |
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