Glycogen
History

Glycogen was discovered by Claude Bernard. His experiments showed that the liver contained a substance that could give rise to reducing sugar by the action of a "ferment" in the liver. By 1857, he described the isolation of a substance he called " la matière glycogène ", or "sugar-forming substance". Soon after the discovery of glycogen in the liver, M.A. Sanson found that muscular tissue also contains glycogen. The empirical formula for glycogen of (C H O) was established by August Kekulé in 1858.

Sanson, M. A. "Note sur la formation physiologique du sucre dans l’economie animale." Comptes rendus des seances de l’Academie des Sciences 44 (1857): 1323-5.
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