Process of preparing a tea product
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United States of America Patent
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-
Nov 2, 1993
Issued Date -
N/A
app pub date -
Mar 10, 1993
filing date -
Apr 6, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a process of preparing a tea extract, the extract is adjusted to 20.degree.-80.degree. C., treated with tannase at pH=4-7 and then subjected to ultrafiltration at 2.degree.-90.degree. C. using a membrane with an average molecular weight exclusion point of at least 5000 Daltons (preferably at least 30,000 Daltons). The extract may finally be subjected to an additional filtration, preferably microfiltration. Also an instant a cold-water soluble tea powder or granulate is claimed.
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