DE913569C - Process for the production of odorless fish liver oils - Google Patents

Process for the production of odorless fish liver oils

Info

Publication number
DE913569C
DE913569C DEST4545A DEST004545A DE913569C DE 913569 C DE913569 C DE 913569C DE ST4545 A DEST4545 A DE ST4545A DE ST004545 A DEST004545 A DE ST004545A DE 913569 C DE913569 C DE 913569C
Authority
DE
Germany
Prior art keywords
odorless
production
fish liver
distillation
liver oils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEST4545A
Other languages
German (de)
Inventor
Dr Ernst Kofranyi
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.)
J E STROSCHEIN CHEM FAB
Original Assignee
J E STROSCHEIN CHEM FAB
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 J E STROSCHEIN CHEM FAB filed Critical J E STROSCHEIN CHEM FAB
Priority to DEST4545A priority Critical patent/DE913569C/en
Application granted granted Critical
Publication of DE913569C publication Critical patent/DE913569C/en
Expired legal-status Critical Current

Links

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
    • C11B3/12—Refining fats or fatty oils by distillation

Landscapes

  • 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)

Description

Verfahren zur Herstellung von geruchlosen Fischleberölen Die Erfindung richtet sich auf ein Verfahren zur Herstellung von geruchlosen Fischleberölen, insbesondere von geruchlosem Lebertran.Process for making odorless fish liver oils The invention is directed to a process for the production of odorless fish liver oils, in particular of odorless cod liver oil.

Es wurde gefunden, daß die den unangenehmen Geruch verursachenden Bestandteile der Fischleberöle dadurch sehr einfach beseitigt werden können, daß man die Öle in Gegenwart von Glycerin od. ä. ungiftigen Alkoholen einer Vakuumdestillation bei möglichst niedriger Temperatur unter Luftsauerstoffabschluß so lange unterwirft, bis das zugesetzte Glycerin vollständig abdestilliert ist. Der Geruchsstoff geht bei dieser Destillation vollständig mit dem Glycerin über, und es hinterbleibt ein geruchloses Leberöl, insbesondere ein geruchloser Lebertran, dessen Vitamine in vollem Umfang erhalten geblieben sind. Die Destillationstemperatur liegt zweckmäßig bei i2o° bei einem Vakuum von o,5 Torr. Es kann aber auch eine andereTemperatur gewählt werden, z.B. etwa i5o° bei etwa 2,o Torr. Jedoch ist eine Dest,illationstemperatur von über i5o° zweckmäßig zu vermeiden. DasMischungsverhältniszwischenGlycerin und C51 liegt zweckmäßig bei i : i, es können aber auch andere Mischungsverhältnisse verwendet werden, wie z. B. 2 : 1 oder andere. Beispiel io ccm Lebertran werden in einem Destillationskolben mit io ccm Glycerin vermischt, worauf das Glycerin samt dem Geruchsstoff des Lebertrans im Vakuum abdestilliert wird. Als Vakuumpumpe wird zweckmäßig eine Drehschieberölpumpe verwendet; bei einem Vakuum von 0,5 Torr siedet das Glycerin bei i2o° C. Der Destillationskolben wird in einem Sandbad beheizt; durch eine doppelt ausgezogene Kapillare wird reiner Stickstoff oder Kohlendioxyd in bekannter Weise in den Kolben gesaugt, da das in dem Lebertran enthaltene Vitamin A bei erhöhter Temperatur gegen Luftsauerstoff empfindlich ist. Die Destillation wird so lange fortgesetzt, bis alles Glycerin übergegangen ist. Der Geruchsstoff des Lebertrans findet sich in der Vorlage als ölige, gelbe Schicht auf dem Glycerin schwimmend. Es handelt sich um einen stickstof£- und schwefelfreien Stoff, der an der Luft langsam verharzt.It has been found that the constituents of fish liver oils which cause the unpleasant odor can be removed very easily by subjecting the oils in the presence of glycerol or similar non-toxic alcohols to vacuum distillation at the lowest possible temperature with the exclusion of atmospheric oxygen until the added glycerol is completely distilled off. During this distillation, the odorous substance is completely transferred with the glycerine, and an odorless liver oil remains, in particular an odorless cod liver oil, the vitamins of which are fully preserved. The distillation temperature is expediently at 120 ° with a vacuum of 0.5 Torr. However, another temperature can also be selected, for example about 150 ° at about 2.0 Torr. However, it is advisable to avoid a distillation temperature of over 150 °. The mixing ratio between glycerol and C51 is expediently i: i, but other mixing ratios can also be used, e.g. B. 2: 1 or others. Example 10 cc of cod liver oil are mixed with 10 cc of glycerin in a distillation flask, whereupon the glycerin and the odorous substance of the liver oil are distilled off in vacuo. A rotary vane oil pump is expediently used as the vacuum pump; in a vacuum of 0.5 Torr, the glycerine boils at 120 ° C. The distillation flask is heated in a sand bath; Through a double-drawn capillary, pure nitrogen or carbon dioxide is sucked into the flask in a known manner, since the vitamin A contained in cod liver oil is sensitive to atmospheric oxygen at elevated temperatures. The distillation is continued until all the glycerine has passed over. The odor of the liver oil is found in the template as an oily, yellow layer floating on the glycerine. It is a nitrogen and sulfur-free substance that slowly becomes resinous in the air.

Der Destillationsrückstand von 7,5 ccm besteht aus geruchlosem Lebertran. Die Bestimmung des Vitamins A nach Carr-Price (Colorimetrierung des mit Sb C13 gebildeten blauen Farbstoffs) ergab keine Verminderung des Vitamin-A-Gehaltes des Lebertrans.The distillation residue of 7.5 ccm consists of odorless cod liver oil. The determination of vitamin A according to Carr-Price (colorimetry of that formed with Sb C13 blue dye) showed no reduction in the vitamin A content of the liver oil.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von geruchlosen Fischleberölen, insbesondere Lebertran, dadurch gekennzeichnet, daß man das 01 in Gegenwart von Glycerin einer Vakuumdestillation bei möglichst niedriger Temperatur unter Luftsauerstoffabschluß so lange unterwirft, bis das zugesetzte Glycerin vollständig abdestilliert ist. PATENT CLAIM: A process for producing odorless fish liver oils, particularly cod liver oil, characterized in that the subjecting 01 in the presence of glycerol to a vacuum distillation at low temperature under atmospheric oxygen completion as long, is completely removed by distillation until the added glycerin.
DEST4545A 1952-03-06 1952-03-06 Process for the production of odorless fish liver oils Expired DE913569C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST4545A DE913569C (en) 1952-03-06 1952-03-06 Process for the production of odorless fish liver oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST4545A DE913569C (en) 1952-03-06 1952-03-06 Process for the production of odorless fish liver oils

Publications (1)

Publication Number Publication Date
DE913569C true DE913569C (en) 1954-06-14

Family

ID=7453601

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST4545A Expired DE913569C (en) 1952-03-06 1952-03-06 Process for the production of odorless fish liver oils

Country Status (1)

Country Link
DE (1) DE913569C (en)

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