Japanese green tea export continued until the world war 1st
ended. From around 1920, Americans began to prefer English black tea and Economical
block before world war 1st brought to lose Japanese green tea overseas market.
Then, Japanese green tea defused in domestic market.
Tea is medical effect had widely known from before as " medicine for life".
From late Taisho period( 1912-1929), scientific research of Japanese green tea'medical
effect advanced and as medical effect verified, Tea are recognized as hygienic
drink.
Product that contains tea was developed also. There was a discussion that tea
is unnecessary product in wartime, Tea was recognized necessary product as hygienic
drink and necessary drink to Japanese daily life's charm. In 1943, tea was appointed
a drink in army that supply Vitamins. In 1904, Gyokuro tea prototyped in Hosino.
In 1916, First all Japan's Japanese green tea competitive exhibition held in Sizuoka.
In1916, national tea research center established. In 1925, Sencha machine production
established and spreaded machine production rapidly. In 1933, Japanese tea industry
exhibit Japanese green tea and tea tool in Chicago global; exhibition.
Major tea's medical effect research
before world war 2nd |
1820 |
Physiologist Runge (Switzerland) discovered
Caffeine. |
1847 |
Rochelder (German) discovered tannin contained
in tea. |
1924 |
Seitaro Miura, Tsujimura Mitiyo announced
that a lot of Vitamin C is contained in tea. |
1927 |
Raizo Yamamoto separated substance similar
to Catechin from green tea. |
1929 |
Ms. Michiyo Tujimura separeted (-)epicatechin
from green tea. |
1932 |
Michiyo Tsujimura and Ryo Yamamoto separated
outrider substance of Vitamin A |
1933 |
Yasuyoshi Oshima and Teruo Arima separated
galocatechin from tea. |
1935 |
Michiyo Tsujimura separated epigalo-catechin. |
1941 |
Michiyo Tsujimura separated Vitamin A from
green tea. |
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