Summary
The wax and resin components of the root bark ofCalotropis gigantea have been examined. A substance corresponding to the description of ‘mudarol’ of previous workers could be isolated. However, its properties indicate that it is a triterpene alcohol and not a sterol. β-amyrin is also found as a major component. These two alcohols are present as esters of volatile and non-volatile fatty acids. β-amyrin acetate could be isolated by direct fractional crystallisation. No substance corresponding to the description of “akundarol” of Hill and Sirkar could be found.
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References
P. B. R. Murti and T. R.Proc. Ind. Acad. Sci., A, 1943,18, 145.
—Ibid.,, 1945,21, 8.
Hill and SirkarJ. C. S., 1915, 1437.
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Murti, P.B.R., Seshadri, T.R. Wax and resin components ofCalotropis gigantea . Proc. Indian Acad. Sci. 21, 147–154 (1945). https://doi.org/10.1007/BF03050876
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DOI: https://doi.org/10.1007/BF03050876