@article {623, title = {High Performance Thin Layer Chromatographic Analysis for the Simultaneous Quantification of Two Polyphenolic Biomarkers in Methanolic Fraction of Bauhinia tomentosa L. Floral Buds}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {May 2018}, pages = {773-777}, type = {Original Article}, chapter = {773}, abstract = {

Objectives: A high-performance thin layer chromatography (HPTLC) method for the simultaneous quantitative determination of caffeic acid and quercetin in methanolic fraction of Bauhinia tomentosa L. floral buds was developed for the first time. Method: For achieving good separation, a mobile phase of toluene: ethyl acetate: formic acid (7:3:0.5, v/v/v) was used. The densitometric determination was carried out at 366 nm in reflection/absorption mode. The calibration curves were linear in the range of 100-600 ng per spot for caffeic acid and quercetin. Results: During the analysis methanolic fraction of Bauhinia tomentosa L. floral buds showed the pres\¬ence of caffeic acid (0.02\%) and quercetin (0.018\%). Conclusion: The proposed method is simple, precise, specific, accurate, less time consuming and cost effective. The statistical analysis of data obtained proves that the method is reproducible and selective and can be used for routine analysis of reported phenolic compounds in crude drug and extracts. The simultaneous quan\¬tification of these compounds has not yet been reported in floral buds of Bauhinia tomentosa which may be utilized for the proper standardization of the plant.

}, keywords = {Bauhinia tomentosa, Caffeic acid, HPTLC, Quercetin, Validation}, doi = {10.5530/pj.2018.4.130}, url = {http://fulltxt.org/article/668}, author = {Abhishek Gupta and Harinath Dwivedi and AKS Rawat} } @article {453, title = {Pharmacognostic Evaluation and Determination of Secondary Plant Metabolites by HPTLC and its Antioxidant Activity in Myrica esculenta}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {November 2017}, pages = {s103-s106}, type = {Original Article}, chapter = {s103}, abstract = {

Introduction: Myrica esculenta Buch.-Ham. (Myricaceae) is commonly known as Box Berry, Kaiphal, and Katphala in Ayurveda. As per the Ayurvedic literature the palnt is used for variety of diseases and disorders. Method: The present study deals with the pharmacognostical standardization, HPTLC analysis and antioxidant activity of methanolict extracts of the leaves of M. esculenta. The plant showed high phenolic and flavonoid content. In-vitro antioxidant study of dried leaves of Myrica esculanta was performed using methanolic extract. Results: Antioxidant activity of M. esculenta methanolic extract showed the least IC50 value of 60 \± 1.15 \μg/ml. Standard ascorbic acid showed an IC50 value of 2.03 \± 0.06 \μg/ml. The calibration curve of Gallic acid showed r2 of 0.949 and Rf of gallic acid was found to be 0.44 \± 0.006. Quantification of gallic acid in the samples of leaves of M. esculenta has been performed and the gallic acid was found to be 0.056\%. Conclusion: The presence of gallic acid has not yet been reported and quantified in this species which may be utilized for the proper standardization of the drug. The present study showed new natural antioxidant that can replace the synthetic ones to be used in foods and cosmetics.

}, keywords = {Antioxidant, DPPH, Gallic acid, HPTLC, Myrica Esculenta}, doi = {10.5530/pj.2017.6s.165}, url = {http://fulltxt.org/article/390}, author = {Prashant Kumar and Abhishek Gupta and Anita Singh} } @article {241, title = {Pharmacognostic Standardization and Chromatographic Fingerprint Analysis on Triterpenoids Constituents of the Medicinally Important Plant Plumeria rubra f. rubra by HPTLC technique}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {February 2017}, pages = {135-141}, type = {Original Article}, chapter = {135}, abstract = {

Introduction: Plumeria rubra f. rubra commonly known as Lal Gulachin has wide horizon of medicinal possessions. Plant is found in India and in its tropical regions. Though the plant and its extracts have been indigenously valued as folklore medicine diversely in India, yet literature lacks somewhere in reverse pharmacognostical approach of this plant which reflects that plant have not been evidently explored therapeutically. There are several forms of Plumeria rubra among which P. rubra f. rubra is much appraised in India than its other forms. Method: In Present study the anticipated potential of this plant has been validated by laying down its pharmacognostical standards along with measurement of its active therapeutic constituent Ursolic acid and Lupeol via. HPTLC, information from organized search of published literature remarks that Ursolic acid and lupeol is ubiquitous to this plant. Results: Microscopic features revealed the presence of paracytic type of stomata, crescent bicollateral vascular bundle, calcium oxalate crystal and clothing trichomes in leaves whereas bark showed the presence of distinct periderm with cork and phellogen, sclereids, bast tissue with parenchymatous cells. Methanolic extract of both parts of plant was subjected to HPTLC. In HPTLC studies the Ursolic acid content in leaves was found to be 0.96\% whereas in bark was detected as 0.051\%, lupeol content in leaves and stem was found to be 0.014\% and 0.018\%. Conclusion: The data generated could be significantly used as reference for the standardization and quality control of Plumeria. rubra f. rubra, as no such work has been reported yet.

}, keywords = {HPTLC, Lupeol, Pharmacognosy, Plumeria rubra f. rubra, standardization, Ursolic acid}, doi = {10.5530/pj.2017.2.23}, url = {http://phcogj.com/fulltext/290}, author = {Gunja Srivastava and Abhishek Gupta and Manjul Pratap Singh and Anurag Mishra} }