GB628514A - Improvements in or relating to the recovery of caffein from coffee products - Google Patents

Improvements in or relating to the recovery of caffein from coffee products

Info

Publication number
GB628514A
GB628514A GB14294/47A GB1429447A GB628514A GB 628514 A GB628514 A GB 628514A GB 14294/47 A GB14294/47 A GB 14294/47A GB 1429447 A GB1429447 A GB 1429447A GB 628514 A GB628514 A GB 628514A
Authority
GB
United Kingdom
Prior art keywords
caffeine
extract
recovery
caffein
relating
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
GB14294/47A
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.)
General Foods Corp
Original Assignee
General Foods Corp
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 General Foods Corp filed Critical General Foods Corp
Publication of GB628514A publication Critical patent/GB628514A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
    • C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine

Landscapes

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

Abstract

Caffeine is extracted from its solution in an organic solvent (obtained by extraction of coffee or its aqueous extracts) by treatment with water and subsequent recovery from the latter; the aqueous mother-liquor may then be treated with an organic solvent to extract the remaining caffeine, this extract being either worked up separately or returned to the original solution (if the same solvent has been used). The aqueous extract is preferably treated with activated carbon before crystallization of the caffeine. Suitable apparatus is shown.
GB14294/47A 1946-06-20 1947-05-29 Improvements in or relating to the recovery of caffein from coffee products Expired GB628514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US628514XA 1946-06-20 1946-06-20

Publications (1)

Publication Number Publication Date
GB628514A true GB628514A (en) 1949-08-30

Family

ID=22045249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14294/47A Expired GB628514A (en) 1946-06-20 1947-05-29 Improvements in or relating to the recovery of caffein from coffee products

Country Status (1)

Country Link
GB (1) GB628514A (en)

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