Chemical examination of gymnema leaves / by Frederick B. Power and Frank Tutin.

  • Frederick Belding Power
Date:
[1904]
Catalogue details

Licence: In copyright

Credit: Chemical examination of gymnema leaves / by Frederick B. Power and Frank Tutin. Source: Wellcome Collection.

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    been described by the authors (Journ. Ghem. Soc., 1904, 85, 624). It was associated with a sugar, the crystalline osazone of which melted at 218 to 219°C., and, therefore, corresponds with that of inactive glucose. 6. The constituents of the fruits of Gymnema sylvestre appear to be similar to those of the leaves, but no quercitol could be obtained from them. 7. Some experiments conducted in the Wellcome Physiological Research Laboratories have shown that neither the gymnemic acid nor the resin insoluble in ethyl acetate possesses toxic properties, nor could any pronounced physiological effects be observed when these substances were administered to the lower animals in doses of 0-5 to 1 Gm. - THE WELLCOME CHEMICAL RESEARCH LABORATORIES, LONDON, E.C.
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