GB1413351A - Tea - Google Patents

Tea

Info

Publication number
GB1413351A
GB1413351A GB455673A GB455673A GB1413351A GB 1413351 A GB1413351 A GB 1413351A GB 455673 A GB455673 A GB 455673A GB 455673 A GB455673 A GB 455673A GB 1413351 A GB1413351 A GB 1413351A
Authority
GB
United Kingdom
Prior art keywords
tea
extract
tannase
immobilised
jan
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
GB455673A
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.)
Unilever PLC
Original Assignee
Unilever PLC
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 Unilever PLC filed Critical Unilever PLC
Publication of GB1413351A publication Critical patent/GB1413351A/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
    • A23F3/00—Tea; Tea substitutes; Preparations thereof
    • A23F3/06—Treating tea before extraction; Preparations produced thereby
    • A23F3/08—Oxidation; Fermentation
    • A23F3/10—Fermentation with addition of microorganisms or enzymes
    • 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
    • A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
    • A23F3/166—Addition of, or treatment with, enzymes or microorganisms

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Biotechnology (AREA)
  • Tea And Coffee (AREA)

Abstract

1413351 Tea UNILEVER LTD 30 Jan 1973 [31 Jan 1972] 4556/73 Heading A2B Unfermented tea is contacted with tannase and subsequently converted to black tea in the presence of natural tea enzymes. The tea may be in the form of a slurry of preferably fresh tea leaf, the contacting with tannase being effected under anaerobic conditions, and the conversion under aerobic conditions, the enzymes being provided by the tealeaf, whereafter the product may be separated into a black tea extract and a leaf residue, which latter may be extracted with water, the resulting extract being combined with the first extract. Alternatively the tea may be in the form of a green tea extract, the tannase being immobilised on a solid support, and the conversion effected in the presence of added enzyme, which may be similarly immobilised. The extracts may be dried to give an instant tea powder.
GB455673A 1972-01-31 1973-01-30 Tea Expired GB1413351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22223172A 1972-01-31 1972-01-31

Publications (1)

Publication Number Publication Date
GB1413351A true GB1413351A (en) 1975-11-12

Family

ID=22831408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB455673A Expired GB1413351A (en) 1972-01-31 1973-01-30 Tea

Country Status (6)

Country Link
JP (1) JPS5242877B2 (en)
CA (1) CA995512A (en)
CH (1) CH570772A5 (en)
DE (1) DE2304073C3 (en)
GB (1) GB1413351A (en)
KE (1) KE2642A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639375A (en) * 1983-08-12 1987-01-27 The Procter & Gamble Company Enzymatic treatment of black tea leaf
US5258188A (en) * 1989-04-06 1993-11-02 Thomas J. Lipton Co., Division Of Conopco, Inc. Process of preparing a tea product
US5919500A (en) * 1996-02-05 1999-07-06 Lipton, Division Of Conopco, Inc. Enzyme extraction process for tea
US5925389A (en) * 1996-02-05 1999-07-20 Lipton Extraction process of tea with enzymes
US5952023A (en) * 1996-02-05 1999-09-14 Lipton, Division Of Conopco, Inc. Enzyme extraction process for tea
US6491961B1 (en) 1999-02-08 2002-12-10 Lipton, Division Of Conopco, Inc. Cold brew tea
US6761918B2 (en) 2002-07-18 2004-07-13 Tata Tea Ltd. Method of processing green tea leaves to produce black tea that can be brewed in cold water
US6833144B2 (en) 1999-02-08 2004-12-21 Lipton, Division Of Conopco, Inc. Cold water infusing leaf tea
EP1574136A2 (en) * 2004-03-12 2005-09-14 The Nippon Synthetic Chemical Industry Co., Ltd. Process for preparing fermented tea and composition
US8039510B2 (en) 2001-11-28 2011-10-18 Nashai Biotech, Llc Methods of making and using theaflavin, theaflavin-3-gallate, theaflavin-3′-gallate and theaflavin 3,3′-digallate and mixtures thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ533190A (en) * 2001-11-28 2008-07-31 Nashai Biotech Llc Methods of making and using theaflavin, theaflavin-3-gallate, theaflavin-3'-gallate and theaflavin 3,3'-digallate and mixtures thereof
EP2008526A3 (en) 2007-06-29 2009-04-15 Jürgen Schneider Method for producing a hot drink from a foodstuff

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639375A (en) * 1983-08-12 1987-01-27 The Procter & Gamble Company Enzymatic treatment of black tea leaf
US5258188A (en) * 1989-04-06 1993-11-02 Thomas J. Lipton Co., Division Of Conopco, Inc. Process of preparing a tea product
US5919500A (en) * 1996-02-05 1999-07-06 Lipton, Division Of Conopco, Inc. Enzyme extraction process for tea
US5925389A (en) * 1996-02-05 1999-07-20 Lipton Extraction process of tea with enzymes
US5952023A (en) * 1996-02-05 1999-09-14 Lipton, Division Of Conopco, Inc. Enzyme extraction process for tea
US6491961B1 (en) 1999-02-08 2002-12-10 Lipton, Division Of Conopco, Inc. Cold brew tea
US6780454B2 (en) 1999-02-08 2004-08-24 Lipton, Division Of Conopco, Inc. Cold brew tea
US6833144B2 (en) 1999-02-08 2004-12-21 Lipton, Division Of Conopco, Inc. Cold water infusing leaf tea
US8039510B2 (en) 2001-11-28 2011-10-18 Nashai Biotech, Llc Methods of making and using theaflavin, theaflavin-3-gallate, theaflavin-3′-gallate and theaflavin 3,3′-digallate and mixtures thereof
US6761918B2 (en) 2002-07-18 2004-07-13 Tata Tea Ltd. Method of processing green tea leaves to produce black tea that can be brewed in cold water
EP1574136A3 (en) * 2004-03-12 2005-09-28 The Nippon Synthetic Chemical Industry Co., Ltd. Process for preparing fermented tea and composition
EP1757191A1 (en) * 2004-03-12 2007-02-28 The Nippon Synthetic Chemical Industry Co., Ltd. Process for preparing fermented tea and comosition
EP1574136A2 (en) * 2004-03-12 2005-09-14 The Nippon Synthetic Chemical Industry Co., Ltd. Process for preparing fermented tea and composition
US8663720B2 (en) 2004-03-12 2014-03-04 Nippon Supplement, Inc. Process for preparing fermented tea and composition

Also Published As

Publication number Publication date
DE2304073C3 (en) 1979-11-15
CH570772A5 (en) 1975-12-31
KE2642A (en) 1976-06-25
AU5149473A (en) 1974-08-01
CA995512A (en) 1976-08-24
DE2304073A1 (en) 1973-08-16
JPS5242877B2 (en) 1977-10-27
JPS4882098A (en) 1973-11-02
DE2304073B2 (en) 1979-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee