GOOGLE DOODLE CELEBRATES JAPANESE GREEN TEA RESEARCHER MICHIYO TSUJIMURA ON 133RD BIRTHDAY

Google doodle, green tea, Michiyo Tsujimura, researcher

 Today marks the 133rd birth anniversary of Japanese educator and biochemist Michio Tsujimura, and Google is honoring him with a special doodle.


GOOGLE DOODLE CELEBRATES JAPANESE GREEN TEA RESEARCHER MICHIYO TSUJIMURA ON 133RD BIRTHDAY
GOOGLE DOODLE CELEBRATES JAPANESE GREEN TEA RESEARCHER MICHIYO TSUJIMURA

GOOGLE DOODLE CELEBRATES JAPANESE GREEN TEA RESEARCHER MICHIYO TSUJIMURA

If you enjoy green tea, you know that it shouldn't be steeped for too long or it tastes bitter. Well, you have Tsujimura to thank for that knowledge.

Born in 1888, Sujimura was the first woman in Japan to receive a doctorate degree in agriculture. She was mentored by another great woman scientist – biologist Kono Yasui, who was the first Japanese woman to receive a doctorate degree in science.

Google Doodle

During her work, she was not easily accepted as a female scientist.

However, he first gained recognition when he, along with his colleague Sitaro Miura, discovered that green tea contained vitamin C in 1924. He published an article titled "On Vitamin C in Green Tea", which led to an increase in green tea exports in the North. America.

He continued his research on green tea, and in 1929 he isolated catechins—a component that makes tea bitter.

The next year he isolated tannins, an even more bitter compound.

These two findings became the foundation for his thesis, "On the chemical constituents of green tea."

In 1934, he isolated gallocatechin from green tea, and in 1935, he registered a patent on his method of extracting vitamin C crystals from plants.

She made history as a teacher when she became the first dean of the Faculty of Home Economics at Tokyo Women's Higher Normal School in 1950. She retired in 1955 but continued to teach part-time.

Tsujimura died in Toyohashi on 1 June 1969 at the age of 80. A stone monument in his honor can be found in the city of Okegawa, his birthplace.

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