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Planta Med 1971; 20(5): 257-262
DOI: 10.1055/s-0028-1099702
© Georg Thieme Verlag Stuttgart · New York

ON THE INTRINSIC FACTORS AND NODAL COMPLEXITIES OF DIOSCOREA DELTOIDEA AND DIOSCOREA PRAZERII

C. R. Karnick
  • Pharmacognosy Research Unit, C. C. R. I. M. & H., Botany Department, Panjab University, Chandigarh. India
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Publikationsdatum:
15. Januar 2009 (online)

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Abstract

Different parts of Dioscorea deltoidea and Dioscorea prazerii have been screened for various constituents.

Sapogenins from the tubers have been hydrolysed into diosgenin, from both the plants, but other constituents have been overlooked.

Tubers were also found to be rich in glycosides and phenolic compounds.

Stems, nodes (nodal plexus) and leaves are rich in alkaloids, saponins, tannins, proteins and phenolic constituents, amounts varying in different parts of the vines.

Furthermore, chemicalstudies of nodal ganglion (nodal plexus) were carried out. It contains all the constituents in varying proportions.

Growth studies reveal that percentage of glycosides increases with age, constant in case of lamina but shows decrease in nodal plexus. Relationship is noticed between the amounts of glycosides percentage produced or reduced with the total percentage of phenolic compounds within the nodal plexus.

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