EP1619236B1 - Process for reducing the cholesterol content in oils or fats - Google Patents

Process for reducing the cholesterol content in oils or fats Download PDF

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Publication number
EP1619236B1
EP1619236B1 EP05014281A EP05014281A EP1619236B1 EP 1619236 B1 EP1619236 B1 EP 1619236B1 EP 05014281 A EP05014281 A EP 05014281A EP 05014281 A EP05014281 A EP 05014281A EP 1619236 B1 EP1619236 B1 EP 1619236B1
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EP
European Patent Office
Prior art keywords
cholesterol
fat
oil
process according
demineralized
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.)
Not-in-force
Application number
EP05014281A
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German (de)
French (fr)
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EP1619236A1 (en
Inventor
Steffen Dr. Hruschka
Klemens Dipl.-Ing. Geissen
Wladislawa Boszulak
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GEA Mechanical Equipment GmbH
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Westfalia Separator GmbH
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    • 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

Definitions

  • the invention relates to a method for reducing the cholesterol content in cholesterol-containing organic, especially animal oils or fats. Such methods are described, for example, in the Korean Journal of Animal Science, 5.299-306 (1996), WO-A-9833875 . EP-A-0350379 and EP-A-0256911 disclosed.
  • oils or fats in particular of animal nature, preferably beef tallow, as high-quality processing as possible, it is desirable to reduce the cholesterol content in these oils or fats in a simple manner.
  • a particularly advantageous and suitable product for the treatment with the method according to the invention is the beef tallow.
  • the separation of the cholesterol-containing aqueous phase by means of a separating centrifuge, in particular a separating separator with a vertical axis of rotation with plate package, is particularly rapid and effective.
  • step a) has a fixed pH either in a particular acidic or in a basic range.
  • the demineralized and / or distilled water added in step a) has a pH between 4 and 6, preferably between 5 and 6 or if the demineralized and demineralized water added in step a) / or distilled water has a pH between 6.5 and 8. Most advantageous is a pH of the added water of 5 to 6.
  • the separation takes place immediately after the addition of the water, which is understood to mean directly a period of not more than 5-10 minutes, in particular of preferably up to 120 seconds or particularly preferably up to 60 seconds.
  • a buffer tank before separating the aqueous phase is also conceivable.
  • Fig. 1 shows a diagram representing the results of some experiments carried out by the method according to the invention.
  • the mixtures of beef tallow and water were then each immediately after the addition of water in a bucket centrifuge each separated into an aqueous cholesterol-containing phase and a cholesterol-reduced oil or fat phase.
  • the significant reductions in the cholesterol content of the beef tallow to be recognized in the figure of up to 40% resulted in an optimum in the acid range of the fixed pH value adjustment of the added water given above.
  • FIGS. 2 to 3 correspondingly show the results of two individual experiments.
  • a pH adjustment in the claimed ranges of the pH correction of the added water leads in each case to a particularly clear cholesterol value reduction.
  • Citric acid or caustic soda was used to adjust the pH.
  • the water was dosed cold to the tallow (50 ° C).
  • the extraction time was 5 min.
  • Fig. 3 was correspondingly in a further experiment with another sample in the mixing ratio 1: 1, a reduction of 660 ppm to 400 ppm with the addition of distilled water with a pH of 5 and 660 ppm to 540 ppm with the addition of distilled water without pH adjustment reached.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)
  • Edible Oils And Fats (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Steroid Compounds (AREA)

Abstract

Method of reducing cholesterol content (A) in cholesterol containing organics (preferably animal oil or fat) comprises: adding demineralized and/or distilled water to oil or fat in a firmly adjusted pH value to form a mixture; and separating the obtained mixture of oil or fat and demineralized and/or distilled water into cholesterol containing aqueous phase and a cholesterol reduced oil- or fat phase.

Description

Die Erfindung betrifft ein Verfahren zur Reduzierung des Cholesterolgehaltes in cholesterolhaltigen organischen, insbesondere tierischen Ölen oder Fetten. Derartige Verfahren sind beispielsweise im Korean Journal of Animal Science, 5.299-306(1996), WO-A-9833875 , EP-A-0350379 und EP-A-0256911 offenbart.The invention relates to a method for reducing the cholesterol content in cholesterol-containing organic, especially animal oils or fats. Such methods are described, for example, in the Korean Journal of Animal Science, 5.299-306 (1996), WO-A-9833875 . EP-A-0350379 and EP-A-0256911 disclosed.

Um organische Öle oder Fette, insbesondere tierischer Natur, vorzugsweise Rindertalg, einer möglichst hochwertigen Verarbeitung zuführen zu können, ist es wünschenswert, den Cholelsterolgehalt in diesen Ölen oder Fetten auf einfache Weise zu reduzieren.In order to be able to supply organic oils or fats, in particular of animal nature, preferably beef tallow, as high-quality processing as possible, it is desirable to reduce the cholesterol content in these oils or fats in a simple manner.

Die Lösung dieses Problems ist die Aufgabe der Erfindung.The solution to this problem is the object of the invention.

Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruchs 1.The invention solves this problem by the subject matter of claim 1.

Vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.Advantageous embodiments can be found in the dependent claims.

Erfindungsgemäß werden dem Öl oder Fett

  1. a) entmineralisiertes und/oder destilliertes Wasser zugesetzt und
  2. b) die Mischung aus dem Öl oder Fett und dem entmineralisierten und/oder destillierten Wasser wird in eine wässrige cholesterolhaltige Phase und eine cholesterolreduzierte Öl- oder Fettphase getrennt.
According to the invention, the oil or fat
  1. a) demineralized and / or distilled water is added and
  2. b) the mixture of the oil or fat and the demineralized and / or distilled water is separated into an aqueous cholesterol-containing phase and a cholesterol-reduced oil or fat phase.

Der verfahrenstechnische und zeitliche Aufwand zur Senkung des Cholesterolgehaltes sind bei diesem überraschend einfachen Verfahren außerordentlich gering. Genügend sind ein Behältnis zum Mischen des Öls oder Fettes mit dem Wasser und vorzugsweise eine diesem nachgeschaltete Trenneinrichtung. Erste Versuche haben ergeben, dass sich durch dieses Verfahren deutliche Reduzierungen des Cholesterolgehaltes im Öl oder Fett erzielen lassen. Ein besonders vorteilhaftes und geeignetes Produkt zur Behandlung mit dem erfindungsgemäßen Verfahrens stellt dabei der Rindertalg dar. Besonders schnell und effektiv erfolgt das Abtrennen der cholesterolhaltigen wässrigen Phase mittels einer trennenden Zentrifuge, insbesondere einem trennenden Separator mit vertikaler Drehachse mit Tellerpaket.The procedural and time required to reduce the cholesterol content are extremely low in this surprisingly simple process. Sufficient are a container for mixing the oil or fat with the water and preferably a downstream of this separator. Initial tests have shown that this method can be achieved significant reductions in the cholesterol content in oil or fat. A particularly advantageous and suitable product for the treatment with the method according to the invention is the beef tallow. The separation of the cholesterol-containing aqueous phase by means of a separating centrifuge, in particular a separating separator with a vertical axis of rotation with plate package, is particularly rapid and effective.

Es hat sich überraschend herausgestellt, dass es sich besonders vorteilhaft auswirkt, wenn das im Schritt a) zugesetzte entmineralisierte und/oder destillierte Wasser einen festeingestellten pH-Wert entweder in einem besonderen sauren oder einem basischen Bereich aufweist.It has surprisingly been found that it has a particularly advantageous effect if the demineralized and / or distilled water added in step a) has a fixed pH either in a particular acidic or in a basic range.

Gute Ergebnisse hinsichtlich der prozentualen Reduzierung des Cholesterolgehaltes lassen sich erzielen, wenn das im Schritt a) zugesetzte entmineralisierte und/oder destillierte Wasser einen pH-Wert zwischen 4 und 6, vorzugsweise zwischen 5 und 6 aufweist oder wenn das im Schritt a) zugesetzte entmineralisierte und/oder destillierte Wasser einen pH-Wert zwischen 6,5 und 8 aufweist. Am vorteilhaftesten ist ein pH-Wert des zugesetzten Wassers von 5 bis 6.Good results with regard to the percentage reduction of the cholesterol content can be achieved if the demineralized and / or distilled water added in step a) has a pH between 4 and 6, preferably between 5 and 6 or if the demineralized and demineralized water added in step a) / or distilled water has a pH between 6.5 and 8. Most advantageous is a pH of the added water of 5 to 6.

Es ist weiter vorteilhaft, wenn die Trennung unmittelbar nach dem Zusetzen des Wasser erfolgt, wobei unter unmittelbar ein Zeitraum von maximal 5-10 min, insbesondere von vorzugsweise bis zu 120sec oder besonders vorzugsweise bis zu 60 sec zu verstehen ist. Der Einsatz eines Puffertanks vor dem Abtrennen der wässrigen Phase ist ebenfalls denkbar.It is also advantageous if the separation takes place immediately after the addition of the water, which is understood to mean directly a period of not more than 5-10 minutes, in particular of preferably up to 120 seconds or particularly preferably up to 60 seconds. The use of a buffer tank before separating the aqueous phase is also conceivable.

Eine noch weitere Senkung des Cholesterolwertes lässt sich erreichen, wenn die Schritte a) des Zusetzens des Wassers und b) des Abtrennens der wässrigen Phase einmal oder mehrfach wiederholt werden.An even further lowering of the cholesterol value can be achieved if the steps a) of adding the water and b) separating the aqueous phase are repeated once or several times.

Fig. 1 zeigt ein Diagramm, welches die Ergebnisse einiger nach dem erfindungsgemäßen Verfahren durchgeführter Versuche wiedergibt.Fig. 1 shows a diagram representing the results of some experiments carried out by the method according to the invention.

Hierbei wurden jeweils Proben von 2kg zerkleinertem Rindertalg destilliertes Wasser im Verhältnis 1:1 mit verschiedenen pH-Werten von 4,5; 5; 6; 7; und 7, 5 zugesetzt.In each case, samples of 2 kg crushed beef tallow distilled water in the ratio 1: 1 with different pH values of 4.5; 5; 6; 7; and 7, 5 added.

Die Mischungen aus Rindertalg und Wasser wurden sodann jeweils unmittelbar nach dem Zusetzen des Wassers in einer Becherschleuder jeweils in eine wässrige cholesterolhaltige Phase und eine cholesterolreduzierte Öl- oder Fettphase getrennt. Dabei ergaben sich die in der Fig. zu erkennenden deutlichen Reduzierungen im Cholesterolgehalt des Rindertalges von bis zu 40% mit einem Optimum im vorstehend angegebenen sauren Bereich der festen pH-Werteinstellung des zugesetzten Wassers.The mixtures of beef tallow and water were then each immediately after the addition of water in a bucket centrifuge each separated into an aqueous cholesterol-containing phase and a cholesterol-reduced oil or fat phase. The significant reductions in the cholesterol content of the beef tallow to be recognized in the figure of up to 40% resulted in an optimum in the acid range of the fixed pH value adjustment of the added water given above.

Die Fig. 2 bis 3 zeigen entsprechend die Ergebnisse von zwei einzelnen Versuchen.FIGS. 2 to 3 correspondingly show the results of two individual experiments.

Eine pH-Wert-Einstellung in die beanspruchten Bereiche der pH-Wert-Korrektur des zugesetzten Wassers hinein führt jeweils zu einer besonders deutlichen Cholesterolwert-Reduzierung.A pH adjustment in the claimed ranges of the pH correction of the added water leads in each case to a particularly clear cholesterol value reduction.

Zur pH-Wert-Einstellung wurde Citronensäure oder Natronlauge verwendet. Das Wasser wurde kalt zum Talg (50°C) dosiert. Die Extraktionszeit betrug 5 min.Citric acid or caustic soda was used to adjust the pH. The water was dosed cold to the tallow (50 ° C). The extraction time was 5 min.

Nach dem Versuch der Fig.2 wurde wiederum einer Probe von 2 kg Rindertalg 21 Wasser mit einem pH-Wert von 5 zugesetzt.After the experiment of Fig.2 again a pH of 5 was added to a sample of 2 kg of beef tallow 21.

Diese 1:1 Mischung aus Rindertalg und Wasser wurde sodann jeweils unmittelbar nach dem Zusetzen des Wassers in einer Becherschleuder bei 6000g in eine wässrige cholesterolhaltige Phase und eine cholesterolreduzierte Öl- oder Fettphase getrennt. Dabei ergab sich die in der Fig. 2 zu erkennende deutliche Reduzierung im Cholesterolgehalt von 400 ppm auf 290 ppm.This 1: 1 mixture of beef tallow and water was then each immediately after the addition of water in a bucket centrifuge at 6000g in an aqueous cholesterol-containing phase and a cholesterol reduced oil or fat phase separated. This resulted in the apparent reduction in the cholesterol content from 400 ppm to 290 ppm, which can be seen in FIG.

Für industrielle Anwendungen eignen sich trennende Zentrifugen, vorzugsweise Separatoren, insbesondere Tellerseparatoren, vorzugsweise bei mehr als 5000 * g (g:= Erdbeschleunigung), die sogar bis zu 10.000 - 15.000 g bei dem Verfahren erreichen können.For industrial applications, separating centrifuges, preferably separators, in particular plate separators, preferably at more than 5000 * g (g: = gravitational acceleration), which can even reach up to 10,000 - 15,000 g in the process are suitable.

In Fig. 3 wurde entsprechend bei einem weiteren Versuch mit einer weiteren Probe im Mischungsverhältnis 1:1 eine Reduzierung von 660 ppm auf 400 ppm bei Zusatz destillierten Wassers mit einem pH-Wert von 5 und von 660 ppm auf 540 ppm bei Zusatz destillierten Wassers ohne pH-Wert-Einstellung erreicht.In Fig. 3 was correspondingly in a further experiment with another sample in the mixing ratio 1: 1, a reduction of 660 ppm to 400 ppm with the addition of distilled water with a pH of 5 and 660 ppm to 540 ppm with the addition of distilled water without pH adjustment reached.

Claims (9)

  1. Process for reducing the cholesterol content in cholesterol-containing organic, in particular animal, oils or fats, characterized in that
    a. demineralized and/or distilled water having a fixed pH is added to the oil or fat and
    b. the mixture of the oil or fat and the demineralized and/or distilled water is separated into an aqueous cholesterol-containing phase and a reduced-cholesterol oil or fat phase.
  2. Process according to Claim 1, characterized in that the cholesterol-containing aqueous phase is separated off by means of a centrifuge.
  3. Process according to Claim 1 or 2, characterized in that the cholesterol-containing aqueous phase is separated off by means of a separating centrifuge, in particular a separator.
  4. Process according to one of the preceding claims, characterized in that the demineralized and/or distilled water added in step a) has a fixed pH between 4 and 6, preferably between 5 and 6.
  5. Process according to one of Claims 1-3, characterized in that the demineralized and/or distilled water added in step a) has a fixed pH between 6.5 and 8.
  6. Process according to one of the preceding claims, characterized in that the separation proceeds immediately after addition of the water, wherein 'immediately' is taken to mean a period of less than 5 to 10 min, preferably less than 120 sec, in particular preferably less than 60 sec.
  7. Process according to one of the preceding claims, characterized in that the steps a) and b) of addition of water and separation off of the aqueous phase are repeated once or a plurality of times.
  8. Process according to one of the preceding claims, characterized in that the oil or fat is comminuted beef tallow.
  9. Process according to one of the preceding claims, characterized in that water is added to the oil or fat in the ratio 1:1.
EP05014281A 2004-07-21 2005-06-30 Process for reducing the cholesterol content in oils or fats Not-in-force EP1619236B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004035217 2004-07-21
DE102004037106A DE102004037106A1 (en) 2004-07-21 2004-07-30 Method for reducing the cholesterol content in oils or fats

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EP1619236A1 EP1619236A1 (en) 2006-01-25
EP1619236B1 true EP1619236B1 (en) 2007-10-31

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EP05014281A Not-in-force EP1619236B1 (en) 2004-07-21 2005-06-30 Process for reducing the cholesterol content in oils or fats

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US (1) US7695748B2 (en)
EP (1) EP1619236B1 (en)
AT (1) ATE377065T1 (en)
AU (1) AU2005203155B2 (en)
DE (2) DE102004037106A1 (en)
DK (1) DK1619236T3 (en)
ES (1) ES2296009T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8110235B2 (en) * 2008-05-06 2012-02-07 Alliance Enterprises Of S.E. Wisconsin, Llc Methods for reducing cholesterol in a milk product
US8092852B2 (en) * 2008-05-15 2012-01-10 I. Edward Salinas Systems and methods for producing reduced cholesterol dairy products

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1413579A (en) * 1921-06-09 1922-04-25 Catherine A Gill Basting cover for roasting pans
US3613555A (en) * 1969-05-29 1971-10-19 Murray Ogman Disposable cooking grease trap
US3804965A (en) * 1970-06-29 1974-04-16 L Peters Method for roasting meat
US4704294A (en) * 1985-10-23 1987-11-03 Durkee Famous Foods, Inc. Dry mix composition for home preparation of gravies
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
FR2633936B1 (en) * 1988-07-05 1991-04-12 Sanofi Sa PROCESS FOR THE EXTRACTION OF CHOLESTEROL CONTAINED IN FAT MATERIAL OF ANIMAL ORIGIN
US5232725A (en) * 1989-03-14 1993-08-03 S.A.N. Corman Process for reducing the content of cholesterol and of free fatty acids in an animal fat
US5116633A (en) * 1989-07-18 1992-05-26 Trustees Of Boston University Meat products having a markedly reduced saturated fat and cholesterol content and a markedly increased unsaturated fat content
US4980185A (en) * 1989-07-18 1990-12-25 Trustees Of Boston University Method for making meat products having a reduced saturated fat and cholesterol content
US5091203A (en) * 1989-12-01 1992-02-25 Campbell Soup Company Method for removing cholesterol from eggs
US5128162A (en) * 1990-07-31 1992-07-07 Kraft General Foods, Inc. Method for removing cholesterol from edible oils
US5370890A (en) * 1992-07-06 1994-12-06 The Regents Of The University Of California Aqueous process to remove cholesterol from food products
US5316780A (en) * 1992-10-14 1994-05-31 Kraft General Foods, Inc. Method for extracting cholesterol from egg yolk
EP0810826B1 (en) * 1995-02-22 2003-06-11 Cerestar USA, Inc. Process for reducing sterols and free fatty acids from animal fat
US5880300A (en) * 1997-01-31 1999-03-09 Cargill, Incorporated Phospholipid-based removal of sterols from fats and oils
US6129945A (en) * 1998-12-10 2000-10-10 Michael E. George Methods to reduce free fatty acids and cholesterol in anhydrous animal fat

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DK1619236T3 (en) 2008-02-25
DE502005001808D1 (en) 2007-12-13
AU2005203155B2 (en) 2010-12-16
US7695748B2 (en) 2010-04-13
US20060019008A1 (en) 2006-01-26
ES2296009T3 (en) 2008-04-16
ATE377065T1 (en) 2007-11-15
AU2005203155A1 (en) 2006-02-09
DE102004037106A1 (en) 2006-02-16
EP1619236A1 (en) 2006-01-25

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