@article {525, title = {Development of Standard Operating Protocol for Slide Preparation of Powdered Bark Samples with Varying Grinding Techniques.}, journal = {Pharmacog Journal}, volume = {10}, year = {2018}, month = {January-2018}, pages = {265-271}, type = {Original Article}, chapter = {265}, abstract = {

Background: Powder microscopy is the most common method to authenticate herbal drugs. The botanical origin and quality can be determined based on cellular features. Objective: To develop a standard operating protocol to prepare slides of powdered bark samples obtained by using different grinding techniques. Materials and methods: Alstonia scholaris, Saraca asoca, Syzygium cumini, Terminalia arjuna and Pongamia pinnata were selected for study. Three samples of each bark were studied: Sample A was collected from NISCAIR Pusa, New Delhi. Sample B and C were procured from industries and were coded as: AP I, AP II, AP III, AP IV and AP V and MP I, MP II, MP III, MP IV and MP V respectively. The slides were prepared by soaking and chemical treatment and photographed by Motic microscope. The samples were observed for general and specific features of the bark and the impact of grinding (industrial grinding and blade grinding in laboratory) on probability of change in various microscopical features. Results: The microscopical features were found to be stable and specific, which can be used to determine the botanical identity of the drug. There was no significant difference in microscopical characters of powdered barks which emphasized that grinding technique does not have any impact on powder microscopy of different bark samples. The method of preparation of slide was also optimized. Conclusion: Powder microscopy, irrespective of grinding technique can be used as a cheap, fast, efficient and accurate method to authenticate herbs or distinguishing species with similar morphological characters without cutting and examining sections.

}, keywords = {Grinding technique, Powder microscopy, Slide optimization}, doi = {10.5530/pj.2018.2.47}, url = {http://fulltxt.org/article/477}, author = {Dharya Singh and Vidhu Aeri and DB Ananthanarayana} } @article {96, title = {Pharmacognostical, Phytochemical and Nutritional Evaluation of Glinus oppositifolius (L.) Aug. DC}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {09/2015}, pages = {31-36}, type = {Original Article}, chapter = {31}, abstract = {

Objective: The primary aim of the study was to establish the pharmacognostic standards along with nutritional values on the important medicinal herb Glinus oppositifolius (L.) Aug. DC., commonly known as Parpata in South India. Material and Methods: Pharmacognostical, physicochemical, nutritional evaluation along with the TLC profiling and preliminary phytochemical screening was carried out. Results: Histological study of different parts of the plant revealed the presence of different cellular structures viz. stem showed the presence of multi cellular to unicellular trichomes, collateral vascular bundles, starch grains etc. Mesophyll of the leaves was embedded with starch grains with clustered calcium oxalate and prism shaped crystals. Anomocytic stomata were present on both the epidermis of the leaf. Powder microscopy exhibited multi cellular trichomes, clustered calcium oxalate, fibres etc. Physicochemical and histochemical studies revealed the presence of various secondary metabolites and different minerals within the acceptable limits. Thin layer chromatographic profiling showed different spots suggesting the presence of specific phytoconstituents in different extracts. The plant also revealed good nutritional value with calorific value of about 245 kcal/100g; Vitamin C 112 mg/100 g and higher amount of calcium etc. Conclusion: The results are beneficial to establish the quality control parameters of the plant species and may be served as future reference for the identification and authentication of the genuine crude drug and also provide sufficient data to recognize the use of the plant as dietary suppliment.\ \  \ 

}, keywords = {Antidiabetic, Histochemical studies., Pharmacognosy, Powder microscopy, standardization, Thin layer Chromatography.}, doi = {10.5530/pj.2016.1.7}, author = {Shantha Thirumalai Ramaseshan and Patchaimal Pitchaiah and Vandana Bharti and Kishore Kumar Ramakrishna and Venkateshwarlu Gaddam and Devesh Tewari and Chinmay Rath and Anupam Mangal and Padhi Madan Mohan and Dhiman Kartar Singh} } @article {72, title = {Component Authentication and Standardisation of an Anti-atherosclerotic Herbal Formulation-GSTC3}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {Nov-Dec 2015}, pages = {339-343}, type = {Original Article}, chapter = {339}, abstract = {

Context: Polyherbal drugs in traditional medicine have been time-tested for treatment of a wide variety of chronic ailments. Aims: To determine constituent components in an in-house designed polyherbal formulation GSTC3 and evaluation of consistency in preparation. Settings and Design: In this study, a hypolipidemic formulation was created using well known plant extracts such as Commiphora mukul (Hook. ex Stocks.) Eng. (Burseraceae), Salacia reticulata Wight (Celastraceae), Terminalia arjuna (Roxb.) Wight and Arn (Combretaceae) and Curcuma longa Linn (Zingiberaceae). Methods and Material: The authentication of individual plant powders was performed using techniques such as powder microscopy and characterised according to Ayurvedic pharmacopeia of India. Phytochemical screening, HPTLC analysis and physicochemical parameters were also determined. Results: The powder microscopic analysis of the individual components served as an authentication for source of plants used. Phytochemical screening ascertained that active classes of compounds reported in the individual extracts such as steroids, terpenoids and polyphenols came into the formulation. Finally, HPTLC analysis of three different batches of GSTC3 ensured stability and integrity in batch to batch preparations. Conclusion: Experimental studies have revealed the antioxidant, antiinflammatory, anti-lipidemic and anti-thrombotic efficacy of GSTC3. This standardisation procedure is essential for further development of GSTC3 into an efficient anti-atherosclerotic drug candidate

}, keywords = {HPTLC, Pharmacognosy, Phytochemical screening, Polyherbal formulation, Powder microscopy}, doi = {10.5530/pj.2015.6.4}, author = {Jeksy Jos Manalil and Indu Muraleedharan Suseela and Smitha Koyickalmadhom Ramavarma and Arunaksharan Narayanankutty and Achuthan Chathrattil Raghavamenon} } @article {1492, title = {Pharmacognostic Evaluation of Leaf and Fruit of Capsicum frutescens (Solanaceae)}, journal = {Pharmacognosy journal}, volume = {6}, year = {2014}, month = {8th April 2014}, pages = {14-22}, type = {Original Article}, abstract = {

Introduction: Capsicum frutescens is a well known spice. Leaves and fruits of the species are used in Ayurveda, Unani and Traditional system of medicines to cure various disorders. Therefore the study was aimed to investigate pharmacognostic parameters of C. frutescens leaf and fruit. Methods: Pharmacognostic studies were carried out in terms of morphological, microscopic characters and physicochemical parameters of C. frutescens samples using standard methods. Results: Smaller fruit size and color of C. frutescens was the distinguishing morphological character observed in the present study. The detailed microscopy of leaf confirmed the presence of rod shaped calcium oxalate crystals, oleoresin cells, pitted parenchyma and fruits with specified oleoresin, sclereid and stone cells with unicellular trichomes on persistent calyx. Physicochemical parameters like ash values, extractive values and nutritive values were determined. Fluorescence analysis of both leaf and fruit powder was determined using organic and inorganic solvents. Preliminary phytochemical screening showed the presence of alkaloids, glycosides, steroids, carbohydrates and proteins. Conclusion: Observed pharmacognostic characters in this study may help in identification and standardization of C. frutescens leaf and fruit.

Key words: African chili, Powder microscopy, Physico-chemical analysis, Thin layer chromatography.

}, keywords = {African chili, Physico-chemical analysis, Powder microscopy, Thin layer Chromatography}, author = {Shruti V. Hegde, and Ganesh R. Hegde, and Gangadhar S. Mulgund, and Vinayak Upadhya} }