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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0337300 (1982-01-05) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 16 인용 특허 : 2 |
Dry tea leaf is extracted with aqueous solvent, preferably by countercurrent procedures at atmospheric pressure, the spent tea leaf is separated from the extract, the spent tea leaf is acidified to a pH within the range of 2.0 to 3.0, the acidified spent tea leaf is further extracted with aqueous so
The process for extracting tea from dry tea leaf comprising the steps of: (a) contacting the tea leaf with aqueous solvent to extract tea leaf solids; (b) separating the aqueous extract from the spent tea leaf; (c) adding an acid to the spent tea leaf to reduce the pH thereof to within the range of
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