This person won a Nobel Prize

Hermann Emil Fischer

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Hermann Emil Fischer
Born October 9, 1852(1852-10-09)
Euskirchen, Rhine Province
Died July 15, 1919(1919-07-15) (aged 66)
Berlin, Germany
Occupation chemist
Known for Nobel Prize in Chemistry in 1902

Hermann Emil Fischer (October 9, 1852 – July 15, 1919) was a German chemist who won the Nobel Prize in Chemistry in 1902. He studied the active principles of tea, coffee and cocoa, namely, caffeine and theobromine.

Fischer also proposed the lock & key model of enzyme action.