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GB1546508A - Tea - Google Patents

Tea

Info

Publication number
GB1546508A
GB1546508A GB10253/76A GB1025376A GB1546508A GB 1546508 A GB1546508 A GB 1546508A GB 10253/76 A GB10253/76 A GB 10253/76A GB 1025376 A GB1025376 A GB 1025376A GB 1546508 A GB1546508 A GB 1546508A
Authority
GB
United Kingdom
Prior art keywords
tea
fermented
heat
green
treated
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
GB10253/76A
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 GB1546508A publication Critical patent/GB1546508A/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

Landscapes

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

Abstract

To produce a tea leaf having improved cold- and hot-water extractability, freshly harvested, green tea leaves are used as starting material, which are contacted with tannase under anaerobic conditions for green tea and heat-treated without being fermented. For black tea or oolong tea, after the tannase treatment, the tea is fermented and heat-treated by conventional methods. The heat treatment allows a product to be obtained both from green and fermented tea leaves which, in contrast to similar products of known processes, is both cold- and hot-water extractable.
GB10253/76A 1975-03-17 1976-03-15 Tea Expired GB1546508A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55923275A 1975-03-17 1975-03-17
US61064775A 1975-09-05 1975-09-05

Publications (1)

Publication Number Publication Date
GB1546508A true GB1546508A (en) 1979-05-23

Family

ID=27072012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10253/76A Expired GB1546508A (en) 1975-03-17 1976-03-15 Tea

Country Status (7)

Country Link
JP (1) JPS51115999A (en)
AU (1) AU501876B2 (en)
CA (1) CA1087446A (en)
CH (1) CH622410A5 (en)
DE (1) DE2610533A1 (en)
GB (1) GB1546508A (en)
IN (1) IN144499B (en)

Cited By (13)

* 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
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
WO2000047056A3 (en) * 1999-02-08 2000-12-14 Unilever Plc Cold brew tea
WO2001011979A1 (en) * 1999-08-12 2001-02-22 Unilever Plc Tea product
US6589575B2 (en) 2000-03-22 2003-07-08 Lipton, Division Of Conopco, Inc. Cold water soluble 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
CN1305386C (en) * 2001-09-10 2007-03-21 联合咖啡株式会社 Method for preparing green tea, powdered green tea, and oolong tea
EP1472932B1 (en) * 2002-02-05 2008-04-23 Kao Corporation Process for producing green tea polyphenol
EP4533957A1 (en) * 2023-10-03 2025-04-09 Ekaterra Research and Development UK Limited A process for producing a tea product
EP4533956A1 (en) * 2023-10-03 2025-04-09 Ekaterra Research and Development UK Limited A process for producing a botanical product

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112404B2 (en) * 1992-05-08 1995-12-06 協同組合ティーライフクリエイティブ How to make green tea
JP4569965B2 (en) 2006-04-17 2010-10-27 花王株式会社 Method for producing purified green tea extract
JP4562682B2 (en) 2006-04-17 2010-10-13 花王株式会社 Method for producing purified green tea extract
WO2008001848A1 (en) 2006-06-30 2008-01-03 Kirin Beverage Company, Limited Method of enzymatically treating green tea leaves
JP4740186B2 (en) * 2007-04-12 2011-08-03 キリンビバレッジ株式会社 Method for producing high flavor tea extract with excellent umami

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812266A (en) * 1972-01-31 1974-05-21 Lipton T Inc Green tea conversion using tannase and natural tea enzymes

Cited By (20)

* 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
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
WO2000047056A3 (en) * 1999-02-08 2000-12-14 Unilever Plc Cold brew tea
US6833144B2 (en) 1999-02-08 2004-12-21 Lipton, Division Of Conopco, Inc. Cold water infusing leaf tea
US6780454B2 (en) 1999-02-08 2004-08-24 Lipton, Division Of Conopco, Inc. Cold brew tea
US6491961B1 (en) 1999-02-08 2002-12-10 Lipton, Division Of Conopco, Inc. Cold brew tea
US6432467B1 (en) 1999-08-12 2002-08-13 Lipton, A Division Of Conopco, Inc. Tea product
US6706310B2 (en) * 1999-08-12 2004-03-16 Lipton, Division Of Conopco, Inc. Tea product
WO2001011979A1 (en) * 1999-08-12 2001-02-22 Unilever Plc Tea product
RU2260985C2 (en) * 1999-08-12 2005-09-27 Унилевер Нв Tea product
US6589575B2 (en) 2000-03-22 2003-07-08 Lipton, Division Of Conopco, Inc. Cold water soluble tea
CN1305386C (en) * 2001-09-10 2007-03-21 联合咖啡株式会社 Method for preparing green tea, powdered green tea, and oolong tea
EP1472932B1 (en) * 2002-02-05 2008-04-23 Kao Corporation Process for producing green tea polyphenol
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
EP4533957A1 (en) * 2023-10-03 2025-04-09 Ekaterra Research and Development UK Limited A process for producing a tea product
EP4533956A1 (en) * 2023-10-03 2025-04-09 Ekaterra Research and Development UK Limited A process for producing a botanical product
WO2025073802A1 (en) * 2023-10-03 2025-04-10 Ekaterra Research and Development UK Limited A process for producing a tea product
WO2025073801A1 (en) * 2023-10-03 2025-04-10 Ekaterra Research and Development UK Limited A process for producing a botanical product

Also Published As

Publication number Publication date
DE2610533A1 (en) 1976-10-07
JPS51115999A (en) 1976-10-13
AU501876B2 (en) 1979-07-05
IN144499B (en) 1978-05-13
AU1207976A (en) 1977-09-22
CA1087446A (en) 1980-10-14
CH622410A5 (en) 1981-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]