Gottlieb Kirchhoff
| Gottlieb Sigismund Kirchhoff | |
|---|---|
| Born |
19 February 1764 Teterow, Mecklenburg-Schwerin |
| Died | 14 February 1833 (aged 68) Saint Petersburg, Russian Empire |
| Residence | Russia |
| Fields | Chemistry |
| Known for |
Hydrolysis of starch into a sugar. Refining vegetable oil. |
Hydrolysis of starch into a sugar.
Gottlieb Sigismund Constantin Kirchhoff (19 February 1764 – 14 February 1833) was a German chemist. In 1811 he became the first person to convert starch into a sugar (corn syrup), by heating it with sulfuric acid. This sugar was eventually named glucose. He also developed a method of refining vegetable oil, and established a factory that prepared two tons of refined oil a day.
Since the sulfuric acid was not consumed, it was an early example of a catalyst. (A term that Jöns Jacob Berzelius would later coin.)
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