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 productsInfo
- 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
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.
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) |
-
1947
- 1947-05-29 GB GB14294/47A patent/GB628514A/en not_active Expired
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