EP1501781A1 - Verfahren zur herstellung von konjugierten linolsäureglyceriden - Google Patents
Verfahren zur herstellung von konjugierten linolsäureglyceridenInfo
- Publication number
- EP1501781A1 EP1501781A1 EP03718788A EP03718788A EP1501781A1 EP 1501781 A1 EP1501781 A1 EP 1501781A1 EP 03718788 A EP03718788 A EP 03718788A EP 03718788 A EP03718788 A EP 03718788A EP 1501781 A1 EP1501781 A1 EP 1501781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conjugated linoleic
- linoleic acid
- fatty acid
- trans
- double bond
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/14—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by isomerisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
- C11C3/06—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils with glycerol
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/09—Geometrical isomers
Definitions
- the invention is in the field of food additives and relates to an improved one-pot process for the production of special conjugated linoleic acid glycerides.
- Linoleic acid with conjugated double bonds which are commercially available under the name "CLA” (conjugated linoleic acid), are physiologically active and are used as food additives.
- CLA conjugated linoleic acid
- the disadvantage is that they are highly hydrophilic and therefore difficult to work into oil phases or are absorbed by fats. In addition, they can react with other food components, which leads to sensory disadvantages (taste, smell, discoloration) and is therefore undesirable.
- the problem can be avoided if the corresponding triglycerides are used instead of the free acids.
- these conjugated linoleic acid glycerides are in principle accessible, but they are disadvantageous. however, that they have a comparatively high proportion of physiologically inactive and undesirable trans, trans double bond isomers.
- the object of the present invention was therefore to develop an improved process for the production of conjugated linoleic acid glycerides which requires as little technical effort as possible and, on the other hand, provides those products which are characterized by the lowest possible amount of trans, trans double bond isomers and distinguishes the highest possible proportion of c9, tl 1 and tlO, cl2 isomers. Description of the invention
- the invention relates to a process for the preparation of conjugated linoleic acid glycerides with a reduced proportion of trans / trans isomers, which is characterized in that
- CO in the R ! CO is a predominantly polyunsaturated acyl radical with 16 to 22, preferably 18 to 20 carbon atoms and R 2 is an alkyl radical with 1 to 4 carbon atoms and preferably methyl, is subjected to double bond isomerization at temperatures in the range from 100 to 160 ° C. with basic catalysts, and
- Suitable starting materials for the production of the conjugated linoleic acid glycerides are preferably those fatty acid lower alkyl esters which have a di- and / or tri-unsaturated acyl radical content of more than 50 and in particular more than 60 mol%, such as sunflower, safflower or Rapsfettklakylester. Usually one starts from methyl or ethyl esters. double bond
- Basic catalysts of the type of alkali metal hydroxides or alkali metal alcoholates, which are in particular anhydrous or in alcoholic solution, are generally used to form the conjuene fatty acid esters.
- the amount used can be 1 to 5% by weight, based on the ester used. Reaction times in the range from 1 to 6, preferably 2 to 4 h and temperatures from 100 to 160, preferably 120 to 140 ° C. are typical.
- One of the main advantages of the method is that it is a one-top reaction, ie the conjuene fatty acid ester formed in the meantime does not have to be isolated, but can be transesterified directly to the glyceride by adding glycerol. As a rule, it is not even necessary to add further catalyst.
- Fatty acid lower alkyl esters and glycerol are usually used in a molar ratio of 1: 0.3 to 1: 0.5, the amount being normally selected so that it is sufficient to form a statistical mono / di / triester mixture.
- the transesterification can be carried out at temperatures in the range from 100 to 160, preferably 120 to 140 ° C., optionally under reduced pressure from 50 to 100 mbar.
- the alcohol released is continuously removed from the reaction equilibrium in order to contribute to the formation of the product.
- the catalyst is then neutralized by adding a mineral acid, such as phosphoric acid, or an organic acid, such as lactic acid, and filtered with the addition of filter aids to obtain a bare product. If desired, deodorization of the glyceride in a thin film evaporator can follow.
- Example 1 200 g of sunflower fatty acid methyl ester were placed together with 6.4 g of potassium methylate in a 500 ml three-necked flask equipped with a stirrer, dropping funnel and reflux condenser and heated to 130 ° C. in the course of 2 h and held at this temperature for 1.5 h. 48.1 g of glycerol were then added dropwise, stirring was continued for 1 h at 130 ° C. and the pressure was then reduced to 80 mbar. After a further stirring time of 2 h at 130 ° C., the mixture was cooled to 75 ° C., aerated with nitrogen and neutralized by adding phosphoric acid, with a lightening of the color being observed. The product was then mixed with a filter aid, filtered through a Beco Cl filter plate and deodorized using a thin-film evaporator. The composition of the reaction product is shown in Table 1
- Example 2 200 g of methyl safflower fatty acid together with 4.4 g of potassium tert-butoxide were placed in a 500 ml three-necked flask with stirrer, dropping funnel and reflux condenser and heated to 130 ° C. in the course of 2 h and held at this temperature for 1.5 h. 48.1 g of glycerol were then added dropwise, stirring was continued for 1 h at 130 ° C. and the pressure was then reduced to 80 mbar. After a further stirring time of 2 h at 130 ° C., the mixture was cooled to 75 ° C., aerated with nitrogen and neutralized by adding phosphoric acid, a lightening of the color being observed. The product was then mixed with a filter aid, filtered through a Beco Cl filter plate and deodorized using a thin-film evaporator. The composition of the reaction product is shown in Table 2 Table 2
- Comparative Example VI 320 g of fatty acid (conjugated linoleic acid: 76%, of which c9, tll: 35.5% and tl0, cl2: 36.2%) and 35 g of glycerol were combined with 0.25 g of tin (IT) oxalate, 4. 4 g of potassium methylate are placed in a 500 ml three-necked flask with stirrer, dropping funnel and reflux condenser and heated to 210 ° C. in the course of 2 h and kept at this temperature and a pressure of 800 mbar for 2 h. The pressure was then reduced to ⁇ 30 mbar.
- the mixture was cooled to 75 ° C., aerated with nitrogen and neutralized by adding phosphoric acid.
- the product was then mixed with a filter aid, filtered through a Beco Cl filter plate and deodorized using a thin-film evaporator.
- the composition of the reaction product is shown in Table 3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General 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)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10219781 | 2002-05-03 | ||
DE10219781A DE10219781A1 (de) | 2002-05-03 | 2002-05-03 | Verfahren zur Herstellung von konjugierten Linolsäureglyceriden |
PCT/EP2003/004302 WO2003093214A1 (de) | 2002-05-03 | 2003-04-25 | Verfahren zur herstellung von konjugierten linolsäureglyceriden |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1501781A1 true EP1501781A1 (de) | 2005-02-02 |
Family
ID=29225011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03718788A Withdrawn EP1501781A1 (de) | 2002-05-03 | 2003-04-25 | Verfahren zur herstellung von konjugierten linolsäureglyceriden |
Country Status (5)
Country | Link |
---|---|
US (1) | US7179929B2 (de) |
EP (1) | EP1501781A1 (de) |
AU (1) | AU2003222837A1 (de) |
DE (1) | DE10219781A1 (de) |
WO (1) | WO2003093214A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101797012B (zh) * | 2010-02-05 | 2011-11-30 | 杨玉峰 | 一种饲料油的生产工艺 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080113067A1 (en) * | 2005-10-17 | 2008-05-15 | Monoj Sarma | Protein-Containing Food Product and Coating for a Food Product and Method of Making Same |
US20070087085A1 (en) * | 2005-10-17 | 2007-04-19 | Bunge Oils, Inc. | Protein-containing food product and coating for a food product and method of making same |
US20070129253A1 (en) * | 2005-12-02 | 2007-06-07 | Alefesh Hailu | Fatty acid ester blends as carriers for pesticide active ingredients |
US20070148311A1 (en) * | 2005-12-22 | 2007-06-28 | Bunge Oils, Inc. | Phytosterol esterification product and method of make same |
US8809560B2 (en) | 2011-05-17 | 2014-08-19 | Board Of Trustees Of The University Of Arkansas | Trans-, trans-conjugated linoleic acid compositions and use thereof |
US9062276B2 (en) | 2012-12-03 | 2015-06-23 | Board Of Trustees Of The University Of Arkansas | Conjugated linoleic acid rich vegetable oil production from linoleic rich oils by heterogeneous catalysis |
CN105566103B (zh) * | 2014-10-13 | 2019-02-19 | 浙江医药股份有限公司新昌制药厂 | 一种甘油酯型多不饱和脂肪酸的制备方法 |
CN107698447B (zh) * | 2016-08-09 | 2021-10-29 | 浙江医药股份有限公司新昌制药厂 | 制备脂肪酸甘油酯的方法 |
CN109053438A (zh) * | 2018-06-28 | 2018-12-21 | 菏泽中禾健元生物科技有限公司 | 一种提高共轭亚油酸甘油酯生产效率的方法 |
CN112251296B (zh) * | 2020-09-22 | 2023-07-04 | 西南林业大学 | 一种固体碱催化直接酯化制备共轭亚油酸甘油酯的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1156788C2 (de) * | 1959-12-02 | 1973-11-22 | Brinckmann Harburger Fett | Verfahren zur Umwandlung von Fettsaeureestern einwertiger Alkohole mit isolierten Doppelbindungen (íÀIsolenfettsaeureesterníÂ) in Fettsaeureester mit konjugierten Doppelbindungen (íÀKonjuenfettsaeureesteríÂ) |
DE19718245C5 (de) | 1997-04-30 | 2004-11-11 | Cognis Deutschland Gmbh & Co. Kg | Synthetische Triglyceride auf Basis konjugierter Linolsäure, Verfahren zu deren Herstellung und deren Verwendung |
US6177580B1 (en) * | 1998-04-21 | 2001-01-23 | Henkel Kommanditgesellschaft Auf Aktien | Conjugated linolenic acid-based synthetic triglycerides |
EP0954983B1 (de) * | 1998-05-04 | 2007-07-11 | Natural ASA | Verfahren zur Verwendung von Zusammensetzungen von konjugierter Linolsäure die mit Isomeren angereichert sind |
DE10143534B4 (de) * | 2001-09-06 | 2005-03-24 | Cognis Deutschland Gmbh & Co. Kg | Verfahren zur Herstellung von konjugierten Fettsäureestern |
-
2002
- 2002-05-03 DE DE10219781A patent/DE10219781A1/de not_active Withdrawn
-
2003
- 2003-04-25 AU AU2003222837A patent/AU2003222837A1/en not_active Abandoned
- 2003-04-25 EP EP03718788A patent/EP1501781A1/de not_active Withdrawn
- 2003-04-25 WO PCT/EP2003/004302 patent/WO2003093214A1/de not_active Application Discontinuation
- 2003-04-25 US US10/513,314 patent/US7179929B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03093214A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101797012B (zh) * | 2010-02-05 | 2011-11-30 | 杨玉峰 | 一种饲料油的生产工艺 |
Also Published As
Publication number | Publication date |
---|---|
US20050176977A1 (en) | 2005-08-11 |
AU2003222837A1 (en) | 2003-11-17 |
DE10219781A1 (de) | 2003-11-13 |
WO2003093214A1 (de) | 2003-11-13 |
US7179929B2 (en) | 2007-02-20 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
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RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB IT |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: COGNIS IP MANAGEMENT GMBH |
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17Q | First examination report despatched |
Effective date: 20100806 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20150716 |