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Pharmacognostical, Phytochemical and Antioxidant Studies Of Research Article M.Niranjan Babu et al. / Journal of Pharmacy Research 2011,4(4),1050-1055 ISSN: 0974-6943 Available online through http://jprsolutions.info Pharmacognostical, Phytochemical and Antioxidant studies of Achyranthes aspera Linn and Achyranthes bidentata Blume *M.Niranjan Babu1 and K.Elango2 1Principal, Seven Hills College of Pharmacy, Tirupati,Andhra Pradesh, India. 2Principal, JSS College of Pharmacy, Ooty, Tamilnadu, India. Received on: 04-01-2011; Revised on: 17-02-2011; Accepted on:16-03-2011 ABSTRACT Achyranthes aspera Linn and Achyranthes bidentata Blume are two plant materials were collected from different parts of Nilgiri district of Tamilnadu and authenticated. Physicochemical parameters like total ash, acid insoluble ash, water soluble ash, and sulphated ash values were determined. Fluorescence analysis was carried out for the plant powder and their extracts. The dried and powdered leaves and seeds of plants were extracted with water and 50% ethanol through cold maceration. Alcohol soluble extractive and water soluble extractive values were determined. The phytochemical studies of the plant extracts showed the presence of alkaloids, glycosides, triterpenoids, saponins, flavonoids and mucilage. These results gave clues regarding the presence of some particular phytoconstituents in the respective plant extracts. The in vitro antioxidant assays of the plant extract exhibited potent antioxidant activity with low IC50 values in DPPH reducing power ability and Nitric oxide scavenging activity. 50% ethanol of both plants at a dose level of 200 mg/kg showed better antioxidant activity. Key words:Achyranthes aspera Linn, Achyranthes bidentata Blume, hyperlipidemia, triterpenoids, saponins, and flavonoids INTRODUCTION Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. extracted with water by cold maceration for 72 hrs to yield aqueous extract. Oxidation reactions can produce free radicals. In turn, these radicals can start chain reactions that damage cells. Antioxidants terminate these chain reactions by removing free radical Phytochemical Screening: intermediates, and inhibit other oxidation reactions. They do this by being oxidized them- Phytochemical analyses for the above the plant extracts were performed and the phytoconstituents selves, so antioxidants are often reducing agents such as thiols, ascorbic acid or polyphenols. reported. Although oxidation reactions are crucial for life, they can also be damaging; hence, plants and animals maintain complex systems of multiple types of antioxidants, such as glutathione, Antioxidant activity vitamin C, and vitamin E as well as enzymes such as catalase, superoxide dismutase and a. Diphenyl-1-picryl hydrazyl (DPPH) method (4) various peroxidases. Low levels of antioxidants, or inhibition of the antioxidant enzymes, The antioxidant activity of various extracts of the leaf and seed of the two plants was assessed cause oxidative stress and may damage or kill cells. As oxidative stress might be an important on the basis of the radical scavenging effect of the stable 1, 1- diphenyl-2-picryl hydrazyl part of many human diseases, the use of antioxidants in pharmacology is intensively studied, (DPPH) free radical. The DPPH free radical is reduced to a corresponding hydrazine when it particularly as treatments for stroke and neurodegenerative diseases. However, it is unknown reacts with a hydrogen donor. The DPPH radical is purple in colour and upon reaction with whether oxidative stress is the cause or the consequence of disease. Antioxidants are widely hydrogen donor, it changes to yellow in colour. It is a discoloration assay, which is evaluated used as ingredients in dietary supplements in the hope of maintaining health and preventing by the addition of antioxidant to a DPPH solution in ethanol or methanol and the decrease in diseases such as cancer, coronary heart disease and even altitude sickness. Although initial absorbance was measured. studies suggested that antioxidant supplements might promote health, later large clinical trials did not detect any benefit and suggested instead that excess supplementation may be harmful. b. Nitric oxide radical inhibition activity In addition to these uses of natural antioxidants in medicine, these compounds have many Nitric oxide is a very unstable species under the aerobic condition. It reacts with O to produce industrial uses, such as preservatives in food and cosmetics and preventing the degradation of 2 stable products, nitrates and nitrite through intermediates NO2, N2O2 and N3O4. It is estimated rubber and gasoline. by using the Griess reagent. In the presence of test compound, which is a scavenger; the amount of nitrous acid will decrease. The extent of decrease will reflect the extent of scaveng- Collection and authentification of plant materials ing, which is measured at 546 nm (5). The plants Achyranthes aspera Linn and Achyranthes bidentata Blume (fam: Amaranthaceae) are widely found throughout India up to a height of 1200m. In Tamilnadu, these are found in RESULTS AND DISCUSSIONS: Nilgiri district and in Erode district. Were identified by Prof. Dr. P. Jayaraman, Director, Plant Anatomy Research Center, Chennai, a botanist who authenticated the plant with Organoleptic characters of Achyranthes aspera and Achyranthes bidentata leaf available literature. Organoleptic character of Achyranthes aspera leaf raw powdered material Evaluation of Maroscopical and Microscopical Character: Powder character The Macroscopic evaluation was carried out for shape, size, color, odor, taste and fracture of the Colour Pale green drug.(1) Different physio-chemical values such as Ash value, extractive values, loss on drying, Appearance Coarse powder Odour Characteristics foreign organic matter, Crude fiber content, were determine. The microscopic studies were Taste No Characteristics carried out using the method described by O Brien et al (2) Fluorescence analysis study of powdered drug material with different reagents was carried out to observe the color reactions (3) Treatment Observation Preparation of the extracts: Powder triturate with water Non sticky The plant material which was powdered and stored was used for extraction. A weighed quantity Powder shaken with water Foam like froth of each of the plant powdered material was extracted by cold maceration with 50% ethanol for Powder pressed between filter paper for 24 hrs No oil stain 72 hr with intermediate heating at 40oC one time in a day. The extract was filtered using Whatmann filter paper and then the filtrate was concentrated under reduced pressure and Organoleptic character of Achyranthes bidentata leaf raw powdered material. controlled temperature (40o-50oC). The marc was dried and weighted. The marc was again Powder character Colour Pale green Appearance Coarse powder *Corresponding author. Odour Characteristics Dr. M.NiranjanBabu Taste No Characteristics M.Pharm.,PhD., Principal Treatment Observation Seven Hills College of Pharmacy Tirupati Powder triturate with water Non sticky Andra Pradesh Powder shaken with water Foam like froth Powder pressed between filter paper for 24 hrs No oil stain Journal of Pharmacy Research Vol.4.Issue 4. April 2011 1050-1055 M.Niranjan Babu et al. / Journal of Pharmacy Research 2011,4(4),1050-1055 Organoleptic characters of Achyranthes aspera and Achyranthes bidentata seed Microscopy profiles of Achyranthes aspera Linn leaf The seed powder of Achyranthes aspera and Achyranthes bidentata is pale brown in colour with characteristic odour and mucilaginous taste. The powder was fine in appearance and when triturated with water it was sticky in nature. The powder on shaking with water gave foam like froth and no oil stain was found when the powder was pressed between filter papers for 24 hours. A preliminary organoleptic character of both the powdered plant material was studied and the results are shown in Table. Organoleptic character of Achyranthes aspera seed raw powdered material. Powder character Colour Pale brown Appearance Fine powder Odour Characteristic Taste Mucilaginous Treatment Observation Powder triturate with water Sticky Powder shaken with water Foam like froth Powder pressed between filter paper for 24 hrs No oil stain Organoleptic character of Achyranthes bidentata seed raw powdered material. Powder character Colour Pale brown Appearance Fine powder Odour Characteristic Taste Mucilaginous Treatment Observation Powder triturate with water Sticky Powder shaken with water Foam like froth Powder pressed between filter paper for 24 hrs No oil stain Yield and nature of the extracts S.No Plant material Quantity Type of Colour of Yield used for the extract the extract G % extraction in grams 1 Achyranthes aspera Linn leaf 900 50% ethanol Dark green 122 13.63 2 Achyranthes aspera Linn leaf 760 Aqueous Dark brown green 147 19.34 3 Achyranthes aspera Linn seed 800 50% ethanol Dark brown green 130 16.25 4 Achyranthes aspera Linn seed 620 Aqueous Dark brown green 126 20.28 5 Achyranthes bidentata Blume leaf 900 50% ethanol Dark green 127 14.11 6 Achyranthes bidentata Blume leaf 730 Aqueous Dark brown green 147 20.13 7 Achyranthes bidentata Blume seed 800 50% ethanol Dark brown green 136 17 8 Achyranthesbidentata Blume seed 610 Aqueous Dark brown green 129 21.14 Phytochemical studies Qualitative phytochemical analysis of raw powder and extract of plant leaf Constituents Raw powder 50 %Ethanol Aqueous 50 %Ethanol Aqueous Achyranthes Achyranthes extracts of extract of extracts extract of Structure
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