Method for producing green tea in microfine powder
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Dec 16, 1999
filing date -
Aug 5, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Crude green tea is pulverized with a ball mill to screen a microfine powder of 1 micron or less with a sieve. The screened green tea microfine powder is spread in a flat box, on which distilled water is sprayed to a final moisture content of 7.5 to 8.0%, followed by agitation. The flat box is arranged in an infrared irradiation chamber, where the green tea microfine powder is heated with infrared rays at a temperature of 40.degree. C. to 60.degree. C. for 130 minutes to 180 minutes. In such manner, the microfine powder with a high ratio of nutrient digestion and absorption and with high active oxygen-eliminating potency due to SOD contained therein can be provided, together with a method for producing the same.
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