PHARMACOGNOSTICAL AND PRELIMINARY PHYTOCHEMICAL INVESTIGATIONS OF AERIAL PARTS OF TRICHODESMA INDICUM R. BR.
Keywords:Trichodesma indicum R Br Boraginaceae, Undhaphuli
Objective: This study was undertaken to carry out pharmacognostical studies and phytochemical studies on aerial parts of Trichodesma indicum R. Br belonging to the family Boraginaceae.
Methods: The aerial parts of plant leaf and stem were evaluated for pharmacognostical studies such as macroscopy, microscopy, powder study, and quantitative microscopy. The powder was evaluated for proximate analysis like ash vale, extracting value, moisture content, swelling index, elemental analysis, fluorescence analysis, and preliminary phytochemical studies.
Results: Transverse section of leaf of T. indicum R. Br. showed presence of covering trichomes with bulbous base upper and lower epidermis, collenchyma, prisms of calcium oxalate, vascular bundle and palisade cells. Surface preparation showed the presence of wavy epidermal cells, anomocytic stomata, anisocytic stomata, trichomes. Transverse section of Stem of Trichodesma indicum R. Br showed the presence of trichomes with, epidermis, hypodermis, cortex, xylem and pith. Powder study of aerial parts of T. indicum R. Br showed the presence of trichomes, xylem vessels, parenchyma, epidermal cells, fibres, calcium oxalate crystals. The powder of aerial parts was evaluated for proximate analysis such as ash value, extractive value, moisture content, total solid content, and the swelling index, which give idea about the presence of siliceous material, and amount of constituents extracted into different solvent. The elemental analysis of aerial parts showed that plant was free from heavy metal contamination i.e. arsenic, lead. The fluorescence analysis of plant powder showed that plant contains phenolic compounds. Qualitative chemical examination showed that the aerial parts of Trichodesma indicum R. Br, is credited with phytosterol, triterpenoids, tannins, phenolic compounds, carbohydrates, fixed oil, fatty acids mucilage.
Conclusion: The study reveals specific identifying characteristics for the particular crude drug which will be of significant use in identification and control to adulteration of the raw drug and can serve as a reference for any further investigations.
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