ANTIOXIDANT ACTIVITY OF SOYMIDA FEBRIFUGA ROXB. A. JUSSHTML Full Text
ANTIOXIDANT ACTIVITY OF SOYMIDA FEBRIFUGA ROXB. A. JUSS
G. Veda Priya *1, B. Ganga Rao 1 and K. Swathi Priya K 2
A.U College of Pharmaceutical Sciences, Andhra University 1, Visakhapatnam, Andhra Pradesh, India
Visakha institute of Pharmaceutical Sciences 2, Visakhapatnam, Andhra Pradesh, India
ABSTRACT: In this present study, we investigated the phytochemical constituents screening and in-vitro antioxidant activity of hydro-alcoholic (methanol 70%v/v) extracts of Soymida febrifuga bark. Soymida febrifuga is a huge tree bearing deciduous foliage and having a tough bark belonging to the family Meliaceae. Traditionally the different parts of plant such as root, leaves, bark, and flower are used for various human ailments. Thebark extracts are used in treatment of rheumatoid arthritis asthma and good for ulcers .The decoction of the bark has bitter resin used in vaginal infections, rheumatic pains , stomach pains, wounds, dental diseases, uterine bleeding and haemorrhage .The bark is also used as an acrid, refrigerant, laxative, good for sore throat, removes ‘vata’ and cures ‘tridosha’ in Ayurveda. Apart from many uses various active constituents like methyl angolensate, luteolin 7-O-glucoside, quercetin, sitosterol, myrecetin were isolated. It also possesses various pharmacological activities such as anticancer, antihelmenthic, antioxidant ant malarial and antimicrobial. In view of this the hydro alcoholic bark extract of S. febrifuga produced a dose dependent inhibition of free radical generation of superoxide anion, hydroxyl radical and DPPH radical In vitro antioxidant activity.
Soymida febrifuga,bark,phytochemical screening, In vitro Antioxidant activity
INTRODUCTION: Herbal medicine was the primary form of medicine and it has been existing from the prehistoric times. About 80% of the world’s population, it is not surprising to find in many countries of the world there is a well established system of traditional medicine, whose remedies are still been compiles 1. A great number of plants worldwide showed a strong antioxidant activity and a powerful scavenger activity against free radicals 2, 3.
There is an increasing interest in the study of antioxidant substances mainly due to the findings of the therapeutic effects of free radical scavengers on the organism 4. Therefore, evaluation of Indian traditional medicine is possible through the proper exploitation and exploration of wide biodiversity and great ancient treatises of traditional medicine with the light of modern tools and techniques 5.
In this scenario, Soymida febrifuga A. Juss. belonging to the family Meliaceae is an indigenous lofty deciduous medicinal tree found on dry stony hills and on laterite soil endemic to India 6, 7. Thebark extracts of S. febrifuga are used extensively in the treatment of leucorrhoea, menorrhagia, dysmenorrhea 8. Bark is used as rheumatic swellings, oedema, vaginal infections, dental diseases, uterine bleeding and haemorrhage 9. This has triggered the authors and the present study was conducted for its phytochemical screening and In vitro Antioxidant activity.
MATERIALS AND METHODS:
Plant material: The bark of Soymida febrifuga was collected in the month of April 2013 fromSileru, Visakhapatnam district, Andhra Pradesh, IndiaThe plant material was taxonomically identified by Dr.Prayaga Murthy Pragada, Botanist, Andhra University, Andhra Pradesh, India. Voucher specimens (BGR/GVP/ Nov2013) have been kept in our laboratory for future reference.
Preparation of hydro alcoholic extract of Soymida febrifuga: Freshly collected bark was dried under shade and the dried material was milled to obtain a coarse powder. To the coarse powder (500gms) in a maceration chamber 2.5 litre of methanol (70% v/v) was added and macerated for 5 days at room temperature. The macerated extract was obtained and concentrated under vacuum at temperature of 45°C by using rotary evaporator, dried completely, weighed and stored in a dessicator. The details of extraction are mentioned in Table 1.
TABLE 1: DETAILS OF THE EXTRACTION
|Plant material||Solvent used||Volume of the solvent||Weight of the extract|
|Bark (500gms)||Methanol (70%)||2.5litres||42gms|
Preliminary phytochemical studies 10-17: Thehydroalcoholic extract of the bark of Soymida febrifuga was subjected to chemical tests for the identification of their constituents. A spectrum of natural compounds like triterpenoids, alkaloids, glycosides, steroids, flavanoids, tannins and other similar secondary metabolites, which exert physiological activities are synthesized in the plant, in addition to the carbohydrates, proteins and lipids that are utilized by man as food materials. Different qualitative chemical tests were performed for establishing the profile of a given extract for its nature of chemical composition. The details of constituents which are present in the extract are mentioned in Table 2.
TABLE 2: SHOWING PRELIMINARY PHYTO-CHEMICAL SCREENING OF THE EXTRACT OF S. FEBRIFUGA
|Phytoconstituents||S. febrifuga hydro alcoholic extract|
+ =Present - = Absent
In-vitro Antioxidant Activity: For the assessment of free radicals scavenging activity, hydro alcoholic (70% v/v methanol) extract was dissolved in dimethyl sulphoxide (DMSO) respectively.
Superoxide Radical Scavenging Activity: Superoxide scavenging activity of the plant extract was determined by McCord & Fridovich, 1969 method18, which depends on light induced superoxide generation by riboflavin and the corresponding reduction of nitroblue tetrazolium.
Hydroxyl Radical Scavenging Activity:
Hydroxyl radical scavenging activity is commonly used to evaluate the free radical scavenging effectiveness of various antioxidant substances 19.Hydroxyl radical scavenging activity was measured by studying the competition between deoxyribose and the extracts for hydroxyl radicals generated from the Fe2+/EDTA/H2O2 sybark (Fenton reaction). The hydroxyl radical attacks deoxyribose, which eventually results in the formation of thiobarbituricacid reacting substances (TBARS).
DPPH Radical Scavenging Activity: The scavenging activity for DPPH free radicals was measured according to the procedure described by Braca et al., 200320. In DPPH assay method is based on the reduction of alcoholic DPPH solution (dark blue in color) in the presence of a hydrogen donating antioxidant converted to the non radical form of yellow colored diphenyl-picrylhydrazine. Lower the absorbance higher the free radical scavenging activity 21.
RESULTS AND DISCUSSION:
In-vitro antioxidant activity: In the present study, the hydro alcoholic bark extract of Soymida febrifuga was found to possess concentration dependent scavenging activity on DPPH radicals and the results were given in Table 3.
TABLE 3: PERCENT INHIBITION OF DPPH RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S.FEBRIFUGA & ASCORBIC ACID
|Extract/ Compound||Percentage inhibition of DPPH radical|
|Quantity of extracts/ ascorbic acid in micrograms (µg)|
|Hydro-alc. Extract of S. febrifuga||9.7±0.4||15.8±1.1||20.6±0.5||32.7±1.1||56.8±1.2||78.25±1.8|
The values of Percentage inhibition were ranging from 15.3±0.5 to 80.23±2.1.The mean IC50 values for DPPH radical of Hydro alcoholic bark extract of Soymida febrifuga was found to be 175µg. The mean IC50 value of ascorbic acid was found to be 22µg. The results were given in Fig. 1.
The Hydro alcoholic bark extract of Soymida febrifuga was found to possess concentration dependent scavenging activity on superoxide generated by photo reduction of riboflavin and the results are given in Table 4.
The values of Percentage inhibition were ranging from 12.4±0.5 to 72.5± 1.4.The mean IC50 values for superoxide radical of Hydro alcoholic bark extract of Soymida febrifuga was found to be 190.5 µg. The mean IC50 value of ascorbic acid was found to be 54.4µg. The results were given in Fig. 2 and 4.
The Hydro alcoholic bark extract of Soymida febrifuga was found to possess concentration dependent scavenging activity on hydroxyl radicals and the results were given Table 5.
FIG. 1: PERCENT INHIBITION OF DPPH RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S. FEBRIFUGA & ASCORBIC ACID
FIG. 2: PERCENT INHIBITION OF SUPEROXIDE RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S. FEBRIFUGA &ASCORBIC ACID
TABLE 4: PERCENT INHIBITION OF SUPEROXIDE RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S.FEBRIFUGA&ASCORBICACID
|Extracts/ Compound||Percentage inhibition of Superoxide radical|
|Quantity of extracts/ ascorbic acid in micrograms (µg)|
|Hydro-alc. Extract of S. febrifuga||8.5±0.3||20.5±1.0||32.4±1.1||43.51±1.2||49.15±1.2||61.3±0.5|
TABLE 5: PERCENT INHIBITION OF HYDROXYL RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S.FEBRIFUGA &ASCORBIC ACID
|Extracts/ Compound||Percentage inhibition of Hydroxyl radical|
|Quantity of extracts/ ascorbic acid in micrograms (µg)|
|Hydro-alc. Extract of S.febrifuga||15.3±0.5||45.2±1.1||75.12±2.1||81.24±1.3||85.6±1.3||90.2±0.6|
The values of Percentage inhibition were ranging from 10.3±0.3 to 67.8±1.6. The mean IC50 values for hydroxyl radical of Hydro alcoholic bark extract of Soymida febrifuga was found 266.30 µg.
The mean IC50 value of ascorbic acid was found to be 68µg. The results were given in Fig. 3 and Table 6.
FIG. 3: PERCENT INHIBITION OF HYDROXYL RADICAL BY HYDRO-ALCOHOLIC EXTRACT OF S.FEBRIFUGA &ASCORBIC ACID
FIG. 4: IN VITRO 50% INHIBITION CONCENTRATION (IC50) OF HYDRO-ALC. EXTRACT OF S. FEBRIFUGA ON SUPEROXIDE, HYDROXYL AND DPPH FREE RADICAL SCAVENGING ACTIVITY
TABLE 6: IN VITRO 50% INHIBITION CONCENTRATION (IC50) OF HYDRO-ALC. EXTRACT OF S. FEBRIFUGA ON SUPEROXIDE, HYDROXYL AND DPPH FREE RADICAL SCAVENGING ACTIVITY.
|Extract/Ascorbic acid||IC50 value (µg)|
|Superoxide radical||Hydroxyl radical||DPPH radical|
|Hydro-alc. Extract of S.febrifuga||190.50±1.20||266.30±1.30||175.00±0.50|
CONCLUSION: From the results it can be concluded that the hydro alcoholic bark extract of Soymida febrifuga has good antioxidant property. Further studies are warranted to identify and isolate the active principle responsible for its pharmacological activities.
ACKNOWLEDGMENT: The authors were thankful to A.U College of Pharmaceutical Sciences, Andhra University for providing necessary laboratory facilities to carry out present research work.
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|How to cite this article:
Priya GP, Rao BG and Priya KS:Antioxidant activity of Soymida febrifuga Roxb.A.Juss. Int J Pharm Sci Res 2014; 5(5): 1847-51.doi: 10.13040/IJPSR.0975-8232.5 (5).1847-51
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G. Veda Priya *, B. Ganga Rao and K. Swathi Priya K
Pharmacognosy and Phytochemistry, A.U College of Pharmaceutical Sciences, Andhra University Visakhapatnam, A.P, India-530 003.
01 December, 2013
17 January, 2014
09 March, 2014
01, May 2014