Nelumbo - The Bulletin of the Botanical Survey of India

M. Brahmam ¹, H. O. Saxena ¹

Affiliations
1 Regional Research Laboratory, Bhubaneswar, IN

Abstract

Phytochemical screening of 236 plant species from Orissa has shown the presence of tannins in 74,  saponins in 14, flavonoids in 74 and alkaloids in 51 species. The presence of alkaloids in 13 species is reported for the first time. The tannin content of 32 species is found to be between 0.4 to 21.2 percent.

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M. Brahmam ¹, N. K. Dhal ¹, H. O. Saxena ¹

Affiliations
1 Regional Research Laboratory, Bhubaneswar, IN

Abstract

Eighty three plant samples collected from the forests of erstwhile Kalahandi, Keonjhar, Koraput, Cuttack, Dhenkanal and Khurda districts of Orissa were screened for finding out new sources of therapeutically important active compounds. Tannins were found in 33, saponins in 4, flavonoids in 19 and alkaloids in 7 samples. Out of 83 samples screened, 40 samples belonging to 34 species were found to respond negatively for all the above ingredients. Garuga pinnata was found to contain 24.7% of tannins in its bark and the presence of saponins was recorded for the first time in the fruits of Eriolaena hookeriana.

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M. Brahmam ¹, N. K. Dhal ¹

Affiliations
1 Regional Research Laboratory, Bhubaneswar, IN

Abstract

Nabarangapur district of Orissa is floristically worked out. The vegetation of the district is found to fall broadly under 1). Tropical semi-evergreen Forests and 2). Tropical Dry Deciduous Forests as per the classification of Champion and Seth. In addition to the above, several sub types and sera1 types like Bamboo btakes, Riparian Fringing Forest, Scrubs, Grasslands etc. are noticed. The natural vegetation which was predominantly arboreal before 1970 became greatly modified due to the settlements of East Bengal (Bangladesh) refugees under Dandakaranya rehabilitation programme.

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