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Anatomical and Phytochemical Investigation of Embelia Tsjeriam-Cottam (Roem

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Anatomical and Phytochemical Investigation of Embelia Tsjeriam-Cottam (Roem International Journal of Pharmacy and Biological Sciences TM ISSN: 2321-3272 (Print), ISSN: 2230-7605 (Online) IJPBSTM | Volume 8 | Issue 3 | JUL-SEPT | 2018 | 710-717 Research Article | Biological Sciences | Open Access | MCI Approved| |UGC Approved Journal | ANATOMICAL AND PHYTOCHEMICAL INVESTIGATION OF EMBELIA TSJERIAM-COTTAM (ROEM. & SCHULT.) A.DC. Ananth V*, Anand Gideon V and John Britto S Research Scholar, Department of Botany, Bishop Heber College (Autonomous), Tiruchirappalli - 620 017. The Rapinat Herbarium and Centre for Molecular Systematics, St. Joseph’s College (Autonomous), Tiruchirappalli - 620 002. *Corresponding Author Email: [email protected] ABSTRACT Embelia tsjeriam-cottam (Roem. & Schult.) A. DC. is a valuable medicinal plant, used in Indian system of medicine. This article presents results of gross morphology, anatomy and phytochemical investigations on the selected species. KEY WORDS E. tsjeriam-cottam, Microscope, FT-IR, Preliminary phytochemistry. INTRODUCTION Family: Primulaceae India is one of the 12 mega-biodiversity countries in the Genus: Embelia world. It is well known for its varied flora thus reflecting Species: tsjeriam-cottam diverse habitats. The habit wise distribution of Botanical Name medicinal plants of the country indicates that the Embelia tsjeriam-cottam (Roem. & Schult.) A. DC. climbers constitute only 15% of the total population, Vernacular Name while erect or non-climbing forms (herbs, shrubs and Tamil: Vaivilangam, Malayalam: Basaal, trees) constitute 85%. Medicinal plants face a high Cheriyannattam, Kannada:Vaivalig, Choladhanna, Hindi: degree of threat because of unsustainable harvesting Babrang, Baibrang, Bayabrang, Marathi: Ambati, Kokla, methods and commercial exploitation. Waiwaraung, Sanskrit: Bidanga, Krimighnam, Vellah, Embelia tsjeriam-cottam (Roem. & Schult.) A. DC. Vidanga. belongs to Primulaceae. (APG IV 2016). The Primulaceae Geography are a family of herbaceous and woody flowering plants The distribution range of this species extends from India with about 53 genera and 2790 species. It is commonly to Sri Lanka, Myanmar and Malaysia. Within India it is known as the primrose family and has been variously seen in southern states of Tamilnadu, Kerala, Karnataka, circumscribed but it is now accepted in the broad sense Andhra Pradesh and Maharastra. including the former families Myrsinaceae and Theoprastaceae because of recent molecular analysis MATERIALS AND METHODS and phylogenetic findings Collection and Authentication Taxonomical Classification Plant materials of E. tsjeriam-cottam (Roem. & Schult.) Kingdom: Plantae A. DC. (Leaves and Stem) were collected from the Phylum : Angiosperms Western Ghats of Tamilnadu and Kerala. They were Order: Ericales authenticated Dr. S. John Britto, Director, The Rapinat International Journal of Pharmacy and Biological Sciences Ananth V* et al 710 www.ijpbs.com or www.ijpbsonline.com ISSN: 2230-7605 (Online); ISSN: 2321-3272 (Print) Int J Pharm Biol Sci. Herbarium and Centre for Molecular Systematics, St. carried out for all the extracts by the method described Joseph’s College (Autonomous) Tiruchirappalli, by Mukherjee (2002). Tamilnadu, S. India. Leaves and stems were cut into Detection of Alkaloids small pieces separately shade dried and powdered. Solvent free extract 50 mg was stirred with few ml of dil. Preparation of Extract HCl and filtered. The filtrate was tested carefully with The powdered plant parts (leaves and stem) 10 g of each various alkaloidal reagents as given below. were extracted in 100 ml of acetone, ethanol, methanol, a) Mayer’s Test aqueous with continuous shaking on mechanical shaker To a few ml of filtrate, one or two drops of Mayer’s for 24/hrs at room temperature. The extracts were then reagent were added by the side of the test tube. A white filtered through Whatmann No.1 filter paper and stored creamy precipitate indicated the test as positive. airtight. b) Wagner’s Test Macroscopic Studies To a few ml of filtrate, few drops of Wagner’s reagent The macroscopic study of plants provides the were added by the side of the test tube. A reddish- morphological description of the plant and the simplest brown precipitate confirmed the test as positive. as well as quickest means to establish the identity and c) Hager’s Test purity to ensure quality of a particular drug. To a few ml of filtrate 1 or 2 ml of Hager’s reagent Microscopic Studies (Saturated aqueous Solution of picric acid) was added. Microscopic study involves anatomy and is done by A prominent yellow precipitate indicated the test as taking appropriate section of the plant parts under positive. study. Detailed microscopic characters were studied by Detection of Carbohydrates and Glycosides taking free hand thin transverse sections of leaf, petiole The extract (100mg) was dissolved in 5 ml water and and stem Surface preparation of the leaves done by filtered. The filtrate was subjected to the following peeling method to observe epidermal cells. The leaf was tests: examined transversely through lamina and midrib. a) Molish’s Test Microphotographs were taken in digital microscope To 2 ml of filtrate two drops of alcoholic solution of α- attached with computer system. napthol was added, the mixture was shaken well and 1 Phytochemical Screening ml of con H2SO4 was added slowly along the sides of the Preliminary phytochemical screening involves the test tube and allowed to stand. A violet ring indicated identification of the bioactive components present in the presence of carbohydrates. the samples by using the standard method. The b) Benedict’s Test components then were separated from the co- To 0.5 ml of filtrate, 1 ml of Bendict’s reagent was extractives. added. The mixture was heated on a boiling water bath Qualitative Phytochemical tests were conducted to test for 2 mins. A characteristic coloured precipitate the powdered form of the plant samples (methanol, indicated the presence of sugar. ethanol, acetone and aqueous) using standard methods Detection of Glycosides of Harborne (1978) and Edeoga et al., (2005). 50 mg of extract was hydrolysed with concentrated HCl FT-IR Spectrometric Analysis for 2 hours on a water bath, filtered and the hydrolysate Fixed amount of plant specimen was mixed with KBr was subjected to the following tests: salt, using a mortar and pestle, and compressed into a a) Borntrage’s Test thin pellet. Infrared spectra were recorded as KBr pellets To 2 ml of filtered hydrolysate, 3 ml of chloroform is on a Thermo scientific Nicot iS5 iD1 transmission, added and shaken, chloroform layer was separated and between 4000-400 cm-1 21. The powdered sample of 10% ammonia solution was added to it. Pink colour the plant extract was treated for FT-IR spectroscopy. indicated the presence of glycosides. The result was analyzed based on peak obtained. b) Legal’s Test Preliminary Phytochemical Analysis 50 mg of the extract was dissolved in pyridine. Sodium Qualitative phytochemical tests for the identification of nitro prusside solution was added and made alkaline alkaloids, flavonoids, steroids and terpenoids were using 10% NaOH. Presence of glycosides was indicated by pink colour. International Journal of Pharmacy and Biological Sciences Ananth V* et al 711 www.ijpbs.com or www.ijpbsonline.com ISSN: 2230-7605 (Online); ISSN: 2321-3272 (Print) Int J Pharm Biol Sci. Detection of Saponins solution was added. A dark green colour indicated the To 1ml of extract, add 2ml of distilled water and shaken presence of phenolic compounds. vigorously and allowed to stand for 10 min. There is the b) Lead Acetate Test development of foam on the surface of the mixture. The extract (50 mg) was dissolved in distilled water and Then shake for 10 minutes, it indicates the presence of to this 3 ml of 10% lead acetate solution was added. A saponins. bulky white precipitate indicates the presence of Detection of Proteins and Amino Acids phenolic compounds. The extract (100 mg) was dissolved in 10 ml of distilled c) Gelatin Test water and filtered through whatmann no: 1 filter paper The extract (50 mg) was dissolved in 50 ml of distilled and filtrate was subjected to tests for proteins and water 2 ml of 1% solution of gelation containing 10% amino acids. sodium chloride was added to it. White precipitate a) Millon’s Test indicated the presence of phenolic compounds. To 2 ml filtrate, few drops of millon’s reagent were d) Alkaline Reagent Test added. A white precipitate indicated the presence of An aqueous solution of the extract was heated with 10% proteins. NH4OH solution. Yellow fluorescence indicated the b) Biuret Test presence of flavonoids. An aliquot of 2 ml of filtrate was heated with 1 drop of e) Magnesium and Hydrochloric Test 2 % CuSO4 solution. To this 1 ml of ethanol (95%) was The extract (50 mg) was dissolved in 5 ml of alcohol and added, followed by excess of KOH Pellets. Pink colour in few fragments of magnesium ribbon and concentrated the ethanolic layers indicated the presence of proteins. HCl were added (dropioire). If any pink to crimson c) Ninhydrin Test developed, presence of flavanol glycoside was inferred. 2 drops of Ninhydrin solution (10 mg of Ninhydrin in 200 Detection of Gum and Mucilages ml of acetone) was added to 2 ml of aqueous filtrate. A The extract (100 mg) was dissolved in 10ml of distilled characteristics purple colour indicated the presence of water and to this 25 ml of absolute alcohol was added amino acids. with constant stirring. White or cloudy precipitate Detection of Phytosterols indicated the presence of gums mucilages. a) Libermann – Burchard’s Test Detection of Volatile Oil The extract (50mg) was dissolved in 2ml acetic In volatile oil estimation apparatus, 50 g of powdered anhydride. To these one or two drops of concentrated material (crude drug) was taken and subjected to hydro H2SO4 were added slowly along the sides of the test distillation. The distillate was collected in graduated tube. An array of colour change showed the presence of tube of the assembly wherein the aqueous portion phytosterols.
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