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Pharmacognostical Studies of Bauhinia variegata Linn., stem.
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UPLOADED BY-ADMIN, PATEL L. D. , GOLWALA D. K.
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| Abstract:
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The present study deals with the macroscopical and microscopical studies of Bauhinia variegata Linn., stem. Some distinct and different characters were observed with section of stem. The anatomy of the stem was studied by taking transverse section. Periderm and cortex were seen distinctly. Secondary phloem was wide and continuous cylindrical, it consisted of thin and narrow straight rays, three or four cylinders of discontinuous masses of fibres and randomly distributed sieve elements. Secondary xylem was diffuse porous and it included vessels, fibres, xylem rays and xylem parenchyma. Xylem fibres had thick lignified walls or some had gelatinous walls. Xylem parenchyma cells were abundant in the xylem. Xylem rays were one cell wide; they were straight and consisted of radially elongated thick walled lignified walls. Calcium-oxalate crystals are predominantly prismatic crystals and druses type. Powder microscopical examination showed presence of fibres, parenchymatous cells, periderm and vessel elements. Histochemical analysis of stem showed presence of protein, tannin, lignin and cellulose. Physicochemical parameters and preliminary phytochemical studies of the stem powder were also carried out. The present study on pharmacognostical investigation of Bauhinia variegata L., stem might be useful to supplement information in regard to its identification parameters assumed significantly in the way of acceptability of herbal drugs in present scenario lacking regulatory laws to control quality of herbal drugs.
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Bauhinia variegata, stem, macroscopy and microscopy.
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