DE2737794C2 - Verfahren zur Entkoffeinierung von Kaffee mit Lösungsmitteln bei hohen Drücken - Google Patents
Verfahren zur Entkoffeinierung von Kaffee mit Lösungsmitteln bei hohen DrückenInfo
- Publication number
- DE2737794C2 DE2737794C2 DE19772737794 DE2737794A DE2737794C2 DE 2737794 C2 DE2737794 C2 DE 2737794C2 DE 19772737794 DE19772737794 DE 19772737794 DE 2737794 A DE2737794 A DE 2737794A DE 2737794 C2 DE2737794 C2 DE 2737794C2
- Authority
- DE
- Germany
- Prior art keywords
- coffee
- pressure
- solvent
- bar
- caffeine
- 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
- 239000002904 solvent Substances 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 27
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 238000000605 extraction Methods 0.000 claims description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 7
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 claims 1
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 42
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 description 21
- 229960001948 caffeine Drugs 0.000 description 21
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 description 21
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 239000006286 aqueous extract Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- -1 formaldehyde demethyl acetal Chemical class 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0203—Solvent extraction of solids with a supercritical fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Tea And Coffee (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772737794 DE2737794C2 (de) | 1977-08-22 | 1977-08-22 | Verfahren zur Entkoffeinierung von Kaffee mit Lösungsmitteln bei hohen Drücken |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772737794 DE2737794C2 (de) | 1977-08-22 | 1977-08-22 | Verfahren zur Entkoffeinierung von Kaffee mit Lösungsmitteln bei hohen Drücken |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2737794A1 DE2737794A1 (de) | 1979-03-08 |
| DE2737794C2 true DE2737794C2 (de) | 1987-05-07 |
Family
ID=6017000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772737794 Expired DE2737794C2 (de) | 1977-08-22 | 1977-08-22 | Verfahren zur Entkoffeinierung von Kaffee mit Lösungsmitteln bei hohen Drücken |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2737794C2 (US20040232935A1-20041125-M00001.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2853169A1 (de) * | 1978-12-08 | 1980-06-26 | Hag Ag | Verfahren zum entcoffeinieren von rohkaffee |
| NL8203139A (nl) * | 1982-08-09 | 1984-03-01 | Douwe Egberts Tabaksfab | Werkwijze voor het decaffeineren van groene koffie. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2212281C3 (de) * | 1972-03-14 | 1978-11-18 | Hag Ag | Verfahren zur entcoffeinierung von rohkaffee |
| DE2357590C3 (de) * | 1973-11-19 | 1983-02-03 | Hag Ag, 2800 Bremen | Verfahren zur Entcoffeinierung von Rohkaffee |
| DE2450978A1 (de) * | 1974-10-26 | 1976-04-29 | Helmut Dallinga | Verfahren und vorrichtung zum entkoffeinieren von kaffee |
-
1977
- 1977-08-22 DE DE19772737794 patent/DE2737794C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2737794A1 (de) | 1979-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |