@article {1210, title = {Pharmacognostic and Phytochemical Evaluation of the bark of Grewia tiliifolia Vahl.}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {967-976}, type = {Original Article}, chapter = {967}, abstract = {

Introduction: Grewia tiliifolia Vahl. is an important ethnomedicinal tree widely distributed in the tropical and sub-tropical areas and has been used as a source of herbal shampoo by the local communities in many places of Kerala, India. It has been routinely used in the traditional Ayurvedic medicines against cough, ulcers, cancer, skin diseases, pruritus, wounds and urinary infections. Objective: The aim of this study was the pharmacognostical standardisation of G. tiliifolia. Methods: Pharmacognostic evaluation of G.tiliifolia bark was carried out by usual macroscopic and microscopic examinations and phytochemical screening. In addition, the quantification of major phytoconstituents such as alkaloids, flavonoids, phenols, tannins, saponins and carotenoids were carried out by standard procedures which can further throw light on the medicinal use of this ethnobotanically important plant. Results: Anatomical studies revealed the presence of prismatic crystals of calcium oxalate and druses in the stem and bark. Mucilage cavities were observed only in the stem. Histochemical studies revealed that the tissues of phloem parenchyma are the main localising region of various phytoconstituents. The physicochemical examinations along with the estimation of alkaloids, flavonoids, phenols, tannins, saponins and carotenoids will help in setting the pharmacopoeial standards of G.tiliifolia. Conclusion: The present study provides useful information that will help in the exact identification as well as assessment of purity of crude drugs of G.tiliifoia.

}, keywords = {Grewia tiliifolia, Pharmacognostic studies, Physicochemical evaluation, Phytochemical screening, Quantification of phytoconstituents}, doi = {10.5530/pj.2020.12.137}, author = {Jaya Kuruvilla and M Anilkumar} } @article {694, title = {Pharmacognostic Studies on the Root of Anthocephalus cadamba (Roxb.) Miq.}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {August 2018}, pages = {973-978}, type = {Original Article}, chapter = {973}, abstract = {

Purpose: To undertake the pharmacognostic studies of Anthocephalus cadamba (Roxb.) Miq. Root for the purpose of identification and differentiation from related species. Methods: The macroscopic and microscopic features of the root were studied, including the use of powder microscopy with the aid of suitable tools and reagents. Physicochemical parameters such as ash value, extractive value and weight loss on drying were also determined. The root powder was successively extracted with different solvents followed by preliminary phytochemical screening of the extracts. Results: Macro- and micro-scopic studies revealed cork i.e. the layer of periderm present above the cortex along with lenticels. The periderm is many layered membranous with irregularly fissured crevices containing phellum and phellogen. Secondary phloem is comparatively massive without lignified tissues i.e. bast fibres and contains sieve tubes, phloem parenchyma, many enriched with starch grains. The secondary xylem lignified mingled with medullary rays, vessels, parenchyma and wood fibers. Preliminary phytochemical screening of different extracts revealed the presence of alkaloids, carbohydrate, protein, gum, steroid, tri-terpenoid, saponin, flavonoid and tannin in the root. Conclusion: The findings of this study facilitate pharmacognostic standardization of the plant material and add clues in the preparation of herbal monographs for Phyto pharmacopeia.

}, keywords = {Anthocephalus cadamba, Kadamba, Macroscopic, Microscopic, Pharmacognostic studies, Phytochemical, Root}, doi = {10.5530/pj.2018.5.165}, author = {Suman Acharyya and Ranjan Padhy and Santosh Kumar Dash} } @article {247, title = {Pharmacognostic Studies and Nephroprotective Potential of Hydroalcoholic Extract of Trichosanthes cucumerina in Acute Renal Failure}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {176-184}, type = {Original Article}, chapter = {176}, abstract = {

Objective: The present research work unearthed not only pharmacognostic features of the seeds of Trichosanthes cucumerina but also the nephroprotective activity of 60\% hydro alcoholic extract against Cisplatin-induced Wistar rat model. Materials and methods: Present study dealt with the detailed pharmacognostic study of the seeds of Trichosanthes cucumerina. 60\% hydro alcoholic extract was prepared by hot extraction method. Preliminary phytochemical screening was carried out. Based on acute toxicity studies nephroprotective effect of the extract was screened at 200 and 400 mg/kg, b. w. in curative and prophylactic regimen. Nephrotoxicity was induced in male Wistar rats by administration of Cisplatin (5mg/kg, b.w. i.p. as a single dose). Nephroprotective activity was assessed by estimating serum markers and urinary functional parameters supported by anti-oxidant studies and histopathological aspects. Results: Microscopic studies showed that the seed coat had outer aerenchymatous tissue, inner parenchymatous tissue and innermost compact lines of sclereids. Physicochemical evaluation yielded alcohol and water soluble extractive values of 20.8 and 8.05\%w/w. Total ash, acid insoluble and water soluble ash values were 7.15, 6.45 and 0.5 respectively. Fluorescence analysis imparted characteristic colours to the seed powder when observed under visible and UV light. Cisplatin-induced nephrotoxicity was indicated by increased levels of serum markers and urinary functional parameters which were reversed by the extract in dose dependent manner. The results were substantiated by anti-oxidant studies and histopathological studies. Conclusion: Various pharmacognostic parameters evaluated assisted in identification and standardization of seeds of Trichosanthes cucumerina in crude form. Present study revealed that hydroalcoholic extract attenuated the nephrotoxicity and provided the strengthened scientific evidence for the use of seeds of Trichosanthes cucumerina in nephrotoxicity.

}, keywords = {Anti-oxidants, Cisplatin, Histopathological studies, Pharmacognostic studies, Trichosanthes cucumerina}, doi = {10.5530/pj.2017.2.29}, url = {http://phcogj.com/fulltext/296}, author = {Doppalapudi Prasanthi and Sreedevi Adikay} }