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Friday 20 May 2016

Scientist of the day - Eduard Buchner

Eduard Buchner was a German chemist and a zymologist who won the 1907 Nobel Prize in Chemistry. Born into an educationally distinguished family, he lost his father when he was barely eleven years old. His elder brother, Hans Buchner, helped him to get good education. However, financial crisis forced Eduard to give up his studies for a temporary phase and he spent this period working in preserving and canning factory. Later, he resumed his education under well-known scientists and very soon received his doctorate degree. He then began working on chemical fermentation. However, his experience at the canning factory did not really go waste. Many years later while working with his brother at the Hygiene Institute at Munich he remembered how juices were preserved by adding sugar to it and so to preserve the protein extract from the yeast cells, he added a concentrated doze of sucrose to it. What followed is history. Sugar in the presence of enzymes in the yeast broke into carbon dioxide and alcohol. Later he identified the enzyme as zymase. This chance discovery not only brought him Nobel Prize in Chemistry, but also brought about a revolution in the field of biochemistry. 

Childhood & Early Years
Eduard Buchner was born on May 20, 1860, in Munich, into a well-known Bavarian family. His father, Ernst Buchner, was the Professor Extraordinary of Forensic Medicine and Obstetrics. In addition, he was also the editor of the Ärztliches Intelligenzblatt (later Münchener medizinische Wochenschrift). His mother’s name was Friederike née Martin.

Eduard’s elder brother, Hans Ernst August Buchner, was ten years senior to him. He grew up to be a well-known bacteriologist and a pioneer in the field of immunology. He not only supported Eduard’s education after their father’s death in 1872, but also assisted him in his works in later years. 

Major Works
Eduard Buchner is best remembered for his discovery of zymase, an enzyme mixture that promotes cell free fermentation. However, it was a chance discovery. He was then working in his brother’s laboratory in Munich trying to produce yeast cell free extracts, which the latter wanted to use in an application for immunology.
 
To preserve the protein in the yeast cells, Eduard Buchner added concentrated sucrose to it. Bubbles began to form soon enough. He realized that presence of enzymes in the yeast has broken down sugar into alcohol and carbon dioxide. Later, he identified this enzyme as zymase and showed that it can be extracted from yeast cells. This single discovery laid the foundation of modern biochemistry.
 
Awards & Achievements
In 1907, Eduard Buchner was awarded the Nobel Prize in Chemistry "for his biochemical researches and his discovery of cell-free fermentation".
He was elected as the President of the German Chemical Society in 1904-1905.