GB206145A - Process for preparing caffein-free coffee-beans - Google Patents

Process for preparing caffein-free coffee-beans

Info

Publication number
GB206145A
GB206145A GB26460/23A GB2646023A GB206145A GB 206145 A GB206145 A GB 206145A GB 26460/23 A GB26460/23 A GB 26460/23A GB 2646023 A GB2646023 A GB 2646023A GB 206145 A GB206145 A GB 206145A
Authority
GB
United Kingdom
Prior art keywords
beans
caffein
preparing
water
chloride
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
GB26460/23A
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.)
IND EN HANDEL MIJ HAG
Original Assignee
IND EN HANDEL MIJ HAG
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 IND EN HANDEL MIJ HAG filed Critical IND EN HANDEL MIJ HAG
Publication of GB206145A publication Critical patent/GB206145A/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
    • A23F5/206—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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Caffeine is extracted from coffee beans by treatment with a solvent having a boiling-point lying within the range 36-45 DEG C. Suitable solvents are extrone (methylene chloride), isopropyl chloride, methyl iodide, ethyl bromide, amylene, n-pentane, and n-propyl chloride. The beans before extraction are treated with steam or water so as to contain 18-30 per cent of water. The Specification as open to inspection under Sect. 91 (3) (a) covers also the use of solvents boiling below 36 DEG C. This subject-matter does not appear in the Specification as accepted.
GB26460/23A 1922-10-24 1923-10-23 Process for preparing caffein-free coffee-beans Expired GB206145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL206145X 1922-10-24

Publications (1)

Publication Number Publication Date
GB206145A true GB206145A (en) 1924-09-25

Family

ID=19778561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26460/23A Expired GB206145A (en) 1922-10-24 1923-10-23 Process for preparing caffein-free coffee-beans

Country Status (1)

Country Link
GB (1) GB206145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276315A (en) * 1979-02-12 1981-06-30 General Foods Corporation Method for decaffeinating coffee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276315A (en) * 1979-02-12 1981-06-30 General Foods Corporation Method for decaffeinating coffee

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