CH114904A - Process for making decaffeinated coffee. - Google Patents

Process for making decaffeinated coffee.

Info

Publication number
CH114904A
CH114904A CH114904DA CH114904A CH 114904 A CH114904 A CH 114904A CH 114904D A CH114904D A CH 114904DA CH 114904 A CH114904 A CH 114904A
Authority
CH
Switzerland
Prior art keywords
making
decaffeinated coffee
caffeine
coffee
decaffeinated
Prior art date
Application number
Other languages
German (de)
Inventor
Cie F Jun Kuendig
Original Assignee
Kuendig Jun & Cie F
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 Kuendig Jun & Cie F filed Critical Kuendig Jun & Cie F
Publication of CH114904A publication Critical patent/CH114904A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/20—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
    • A23F5/206—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof by extraction of the beans with selective solvents other than water or aqueous bean extracts, including supercritical gases

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Tea And Coffee (AREA)
  • Extraction Or Liquid Replacement (AREA)

Description

  

  Verfahren zur Herstellung von     koffeinfreiem        Kaffee.       Bei den bekannten Verfahren zur Her  stellung von koffeinfreiem Kaffee werden Ex  traktionsapparate verwendet, in denen den  ganzen Kaffeebohnen das Koffein mittelst  Lösungsmittel mit oder ohne Druckeinwirkung  entzogen wird, wobei nur einige bestimmte       Lt:sungsmittel    Anwendung finden. Es hat  sich nun gezeigt, dass bei Druckerhöhungen  bis auf mindestens 15 Atmosphären sich die  Zahl der anwendbaren Lösungsmittel erhöhen  lässt, indem überhaupt alle Koffeinlösungs  mittel nutzbare Anwendung finden. Eine ein  fache Ausführungsform des Verfahrens gemäss  der Erfindung beruht darauf, das     Koffein     den ganzen Kaffeebohnen unter Anwendung  von mindestens 15 Atmosphären Druck, z. B.

    in einem     Autoklaven    mit Hilfe eines Kohlen-.       wasserstoffes    oder dessen     halogenierten    Deri  vaten, z. B. Benzin,     Toluol,        Tetrachlorkohlen-          stoff,    zu entziehen.  



  Ebenso finden Anwendung sämtliche Stoffe  der     Ketonengruppe,    wie zum Beispiel     Diäthyl-          keton,        Mesityloxyd        etc.,    sowie die ganze    Gruppe von Alkoholen, z. B.     Allylalkohol,          Propylalkohol        etc.     



  Das Entziehen des Koffeins mittelst     Kohlen-          wasserstoffen,        Ketonen    oder Alkoholen kann  mit oder ohne     Zusatz    von alkalisch wirken  den Stoffen, wie Natronlauge, Kalilauge,  Kalk     etc.    geschehen.



  Process for making decaffeinated coffee. In the known processes for the manufacture of decaffeinated coffee, extraction apparatuses are used in which the caffeine is removed from the whole coffee beans by means of solvents with or without the action of pressure, with only a few specific solvents being used. It has now been shown that when the pressure is increased up to at least 15 atmospheres, the number of solvents that can be used can be increased by using all caffeine solvents. A simple embodiment of the method according to the invention is based on the caffeine the whole coffee beans using at least 15 atmospheres pressure, for. B.

    in an autoclave with the help of a coal. hydrogen or its halogenated derivatives, z. B. gasoline, toluene, carbon tetrachloride to withdraw.



  Likewise, all substances of the ketone group, such as diethyl ketone, mesityl oxide, etc., as well as the whole group of alcohols, e.g. B. allyl alcohol, propyl alcohol etc.



  The removal of caffeine by means of hydrocarbons, ketones or alcohols can be done with or without the addition of alkaline substances such as caustic soda, potassium hydroxide, lime, etc.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von koffein freiem Kaffee, dadurch gekennzeichnet, dass man die ganzen Kaffeebohnen unter An wendung von mindestens 15 Atmosphären Druck der Wirkung eines Lösungsstoffes aus setzt. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass alkalische Stoffe zugesetzt werden. PATENT CLAIM: Process for the production of caffeine-free coffee, characterized in that the whole coffee beans are exposed to the action of a solvent using at least 15 atmospheres pressure. SUBClaim: Method according to claim, characterized in that alkaline substances are added.
CH114904D 1924-05-16 1924-05-06 Process for making decaffeinated coffee. CH114904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH114904T 1924-05-16

Publications (1)

Publication Number Publication Date
CH114904A true CH114904A (en) 1926-05-17

Family

ID=4373994

Family Applications (1)

Application Number Title Priority Date Filing Date
CH114904D CH114904A (en) 1924-05-16 1924-05-06 Process for making decaffeinated coffee.

Country Status (1)

Country Link
CH (1) CH114904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062776A1 (en) * 1981-04-14 1982-10-20 Societe Des Produits Nestle S.A. Purification of caffeine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062776A1 (en) * 1981-04-14 1982-10-20 Societe Des Produits Nestle S.A. Purification of caffeine

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