CA1248812A - Process for the production of decaffeinated tea - Google Patents
Process for the production of decaffeinated teaInfo
- Publication number
- CA1248812A CA1248812A CA000480013A CA480013A CA1248812A CA 1248812 A CA1248812 A CA 1248812A CA 000480013 A CA000480013 A CA 000480013A CA 480013 A CA480013 A CA 480013A CA 1248812 A CA1248812 A CA 1248812A
- Authority
- CA
- Canada
- Prior art keywords
- carbon dioxide
- tea
- extraction
- caffein
- process according
- 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
- 238000000034 method Methods 0.000 title claims abstract description 33
- 235000015092 herbal tea Nutrition 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000000605 extraction Methods 0.000 claims abstract description 67
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims abstract description 64
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 49
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 49
- 241001122767 Theaceae Species 0.000 claims abstract description 40
- 235000013616 tea Nutrition 0.000 claims abstract description 40
- 239000003610 charcoal Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 238000004064 recycling Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 2
- 230000006854 communication Effects 0.000 claims 2
- 241001052209 Cylinder Species 0.000 claims 1
- 229940106265 charcoal Drugs 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/36—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
- A23F3/366—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof by extraction of the leaves with selective solvents
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)
- Extraction Or Liquid Replacement (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3415844A DE3415844C2 (de) | 1984-04-27 | 1984-04-27 | Verfahren zur Herstellung von entkoffeiniertem Tee |
| DEP3415844.8 | 1984-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1248812A true CA1248812A (en) | 1989-01-17 |
Family
ID=6234567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000480013A Expired CA1248812A (en) | 1984-04-27 | 1985-04-24 | Process for the production of decaffeinated tea |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0159724B2 (enrdf_load_stackoverflow) |
| JP (1) | JPS60234548A (enrdf_load_stackoverflow) |
| AT (1) | ATE64825T1 (enrdf_load_stackoverflow) |
| CA (1) | CA1248812A (enrdf_load_stackoverflow) |
| DE (2) | DE3415844C2 (enrdf_load_stackoverflow) |
| SU (1) | SU1602385A3 (enrdf_load_stackoverflow) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339181A1 (de) * | 1983-10-28 | 1985-05-09 | Uhde Gmbh, 4600 Dortmund | Verfahren und vorrichtung zur entkoffeinierung von teeblaettern |
| DE3515740A1 (de) * | 1985-05-02 | 1986-11-06 | Skw Trostberg Ag, 8223 Trostberg | Verfahren zur entcoffeinierung von tee |
| DE3640333C3 (de) * | 1986-11-26 | 1994-08-11 | Barth Raiser Hopfenextraktion | Verfahren und Vorrichtung zur Herstellung von aromatisiertem, entcoffeiniertem Tee |
| DE3640967A1 (de) * | 1986-11-29 | 1988-06-09 | Sueddeutsche Kalkstickstoff | Verfahren zur entaromatisierung und anschliessenden rearomatisierung von tee |
| AT388114B (de) * | 1987-05-20 | 1989-05-10 | Ver Edelstahlwerke Ag | Verfahren und anordnung zur beschickung eines druckraumes |
| DE3838952A1 (de) * | 1988-11-17 | 1990-05-23 | Barth Raiser Hopfenextraktion | Verfahren zur aromatisierung von behandeltem tee |
| DE4400096C2 (de) * | 1994-01-04 | 1997-06-12 | Barth Raiser Hopfenextraktion | Verfahren zur Entcoffeinierung von schwarzem Tee |
| DE19524481C2 (de) * | 1995-07-05 | 2000-03-02 | Hopfenextraktion Hvg Barth, Raiser & Co | Verfahren zur Entcoffeinierung von schwarzem Tee |
| WO2006005537A1 (de) | 2004-07-09 | 2006-01-19 | Nateco2 Gmbh + Co. Kg | Verfahren zur entcoffeinierung von tee |
| GB201405488D0 (en) | 2014-03-26 | 2014-05-07 | Infre S A | Decaffeination methods and systems |
| EP3120712B1 (de) | 2015-07-22 | 2017-09-13 | Evonik Degussa GmbH | Verfahren zur verbesserten extraktion von wacholderbeeren, hagebutten, sanddornbeeren, mehlbeeren |
| EP3165099A1 (de) | 2015-11-03 | 2017-05-10 | Evonik Degussa GmbH | Entölung und gleichzeitige entfernung von unerwünschten begleitstoffen aus bohnen mit überkritischem co2 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH535543A (de) * | 1970-02-05 | 1973-04-15 | Studiengesellschaft Kohle Mbh | Verfahren zur Entcoffeinierung von Rohkaffee |
| DE2127642C3 (de) * | 1971-06-03 | 1975-10-16 | Studiengesellschaft Kohle Mbh, 4330 Muelheim | Verfahren zur Herstellung von coffeinfreiem schwarzem Tee mit vollem Aromagehalt |
| DE2212281C3 (de) * | 1972-03-14 | 1978-11-18 | Hag Ag | Verfahren zur entcoffeinierung von rohkaffee |
| US4247570A (en) * | 1976-08-04 | 1981-01-27 | Studiengesellschaft Kohle Mbh | Process for the decaffeination of coffee |
| DE2637197C2 (de) * | 1976-08-18 | 1983-01-27 | Hag Ag, 2800 Bremen | Verfahren zum Entzug von Coffein aus coffeinhaltigen Naturstoffen mit einem überkritischen Extraktionsmittel |
| DE2639066A1 (de) * | 1976-08-30 | 1978-03-02 | Hag Ag | Verfahren zur entfernung von reizstoffen aus kaffee |
| DE2727191B2 (de) * | 1977-06-16 | 1980-07-03 | Hag Ag, 2800 Bremen | Verfahren zur selektiven Extraktion von Coffein aus pflanzlichen Materialien |
| DE3339181A1 (de) * | 1983-10-28 | 1985-05-09 | Uhde Gmbh, 4600 Dortmund | Verfahren und vorrichtung zur entkoffeinierung von teeblaettern |
| DE3414767A1 (de) * | 1984-04-18 | 1985-11-07 | Hopfenextraktion HVG Barth, Raiser & Co, 8069 Wolnzach | Verfahren zur herstellung von entcoffeiniertem schwarzen oder gruenen tee |
| EP0167399A3 (en) * | 1984-07-06 | 1987-08-26 | General Foods Corporation | Decaffeination of fermented unfired tea |
-
1984
- 1984-04-27 DE DE3415844A patent/DE3415844C2/de not_active Expired - Fee Related
-
1985
- 1985-04-10 SU SU853877651A patent/SU1602385A3/ru active
- 1985-04-24 CA CA000480013A patent/CA1248812A/en not_active Expired
- 1985-04-26 JP JP60089148A patent/JPS60234548A/ja active Granted
- 1985-04-26 AT AT85105153T patent/ATE64825T1/de not_active IP Right Cessation
- 1985-04-26 EP EP85105153A patent/EP0159724B2/de not_active Expired - Lifetime
- 1985-04-26 DE DE8585105153T patent/DE3583354D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60234548A (ja) | 1985-11-21 |
| DE3415844C2 (de) | 1994-02-03 |
| EP0159724A3 (en) | 1988-07-20 |
| DE3583354D1 (de) | 1991-08-08 |
| EP0159724A2 (de) | 1985-10-30 |
| DE3415844A1 (de) | 1985-10-31 |
| JPH053258B2 (enrdf_load_stackoverflow) | 1993-01-14 |
| SU1602385A3 (ru) | 1990-10-23 |
| ATE64825T1 (de) | 1991-07-15 |
| EP0159724B1 (de) | 1991-07-03 |
| EP0159724B2 (de) | 1998-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |