GB635185A - Improvements in or relating to the treatment of coffee - Google Patents

Improvements in or relating to the treatment of coffee

Info

Publication number
GB635185A
GB635185A GB6168/48A GB616848A GB635185A GB 635185 A GB635185 A GB 635185A GB 6168/48 A GB6168/48 A GB 6168/48A GB 616848 A GB616848 A GB 616848A GB 635185 A GB635185 A GB 635185A
Authority
GB
United Kingdom
Prior art keywords
caffeine
solvent
coffee
relating
treatment
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
GB6168/48A
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.)
HANS KONRAD DURRENMATT
Original Assignee
HANS KONRAD DURRENMATT
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 HANS KONRAD DURRENMATT filed Critical HANS KONRAD DURRENMATT
Publication of GB635185A publication Critical patent/GB635185A/en
Expired legal-status Critical Current

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
    • A23F5/22—Reducing or removing alkaloid content from coffee extract
    • A23F5/226—Reducing or removing alkaloid content from coffee extract by extraction with selective solvents

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Caffeine is obtained from an aqueous infusion made from roasted coffee beans by mixing the infusion with a non-aqueous caffeine-solvent immiscible in water and having a specific gravity different from that of water and a boiling point below 100 DEG C., mechanically separating the caffeine-containing solvent from the mixture and then separating the caffeine from the solvent by evaporation. Suitable solvents are trichlorethylene, dichlorethylene, dichlormethane and benzene.
GB6168/48A 1942-07-25 1948-02-27 Improvements in or relating to the treatment of coffee Expired GB635185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US635185XA 1942-07-25 1942-07-25

Publications (1)

Publication Number Publication Date
GB635185A true GB635185A (en) 1950-04-05

Family

ID=22049745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6168/48A Expired GB635185A (en) 1942-07-25 1948-02-27 Improvements in or relating to the treatment of coffee

Country Status (1)

Country Link
GB (1) GB635185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817588A (en) * 1954-01-07 1957-12-24 Standard Brands Inc Decaffeination of coffee
US4465699A (en) * 1975-08-18 1984-08-14 Societe D'assistance Technique Pour Produits Nestle S.A. Decaffeination process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817588A (en) * 1954-01-07 1957-12-24 Standard Brands Inc Decaffeination of coffee
US4465699A (en) * 1975-08-18 1984-08-14 Societe D'assistance Technique Pour Produits Nestle S.A. Decaffeination process

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