ANTIOXIDANT ACTIVITY OF TERMINALIA ARJUNA PDF
PDF | The present investigation was carried out to evaluate the antioxidant nature of ethanolic extract of Terminalia arjuna bark (EETA) on. Bioactive Components and Antioxidant Properties of Terminalia arjuna L. Extracts . Shahid Chatha, Shahzad Ali, Department of Applied Chemistry. Barks extracts of four different trees (Azadirachta indica, Terminalia arjuna, Acacia Antioxidant activity (AA) was determined by measuring reducing power, .
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Select your language of interest to view the total content in your interested language. The antioxidant capacities of arjuna extracts were also evaluated by measuring their free radical scavenging abilities to 1,1 —diphenyl-2 picrylhydrazyl DPPH stable following the previously established method [ 14 ] with slight modifications.
February 18, ; Published Date: A raising trend in the yield of antioxidant extracts has been observed with increasing polarity of solvent suggesting the polar natural of antioxidants compounds.
Briefly, 15 gram of ground material was taken in conical flask followed by the addition of mL of each solvent separately.
Flavonoids arjunone, arjunolone, luteolingallic acid, ellagic acid, Oligomeric Proanthocyanidines OPCsphytosterols, calcium, magnesium, zinc and copper [ 10 ]. The maximum percent inhibition of linoleic acid peroxidation The mixture was diluted up to 25 mL with distilled water.
Sample containing synthetic antioxidant, BHT was used as positive control. Percent inhibition of linoleic acid was calculated as.
A number of studies are available on the antioxidant activity and medicinal importance of this plant worldwide, terminaalia, in Pakistan no remarkable research work has been conducted while the plant is easily available due to favorable agro-climatic conditions for its growth. Dry matter extracts mg was mixed with 5. Reducing power of extract was determined according to the procedure described previously [ 15 ].
In the present study, it was observed that methanol was an efficient solvent and stem bark extracts of arjuna were more rich in antioxidant compounds. This is an open-access article distributed under acfivity terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction agjuna any medium, provided the original author and source are credited.
February 04, ; Accepted Date: The bark and leave samples of Terminalia arjuna L. The earlier investigations in the relevant field had clearly arujna that methanol was a promising solvent for extraction of antioxidants from natural products [ 16 ].
TFC amounts were expressed as catechin equivalents per hundred grams of dry matter.
Our results of present study are in close agreement with the findings 0. Methanol is generally employed for the extraction of antioxidant components due to their polarity and good solubility with many antioxidant components [ 17 ]. Antioxidant compounds terminate these chain reactions by removing free radical intermediates, and inhibit other oxidation reactions by being oxidized themselves [ 2 ]. The concentrated extract was allowed to dry at room temperature.
The total flavonoids contents TFC were determined following the previously established spectrometric method [ 13 ]. The specimens was further identified and authenticated from Dr. It was observed that arjuna extracts contained appreciable amount of TPC 6.
Bioactive Components and Antioxidant Properties of Terminalia arjuna L.Extracts
Pharmaceutical Sciences Journals Ann Jose ankara escort. Briefly, 50mg of dry mass of extracts was mixed with 0. Percent inhibition of linoleic acid peroxidation by synthetic antioxidant BHT was taken as control and compared with arjuna extracts.
All the samples were analyzed in triplicates. The degree of oxidation was measured following ammonium thiocyanate method [ 15 ]. Research Article Open Access. The solution was mixed and the absorbance was measured at nm using a spectrophotometer U, Hitachi Instruments Inc,Tokyoa, Japan. The arjuna extracts are found to be quite effective in preventing the oxidation.
Free radical scavenging activity was evaluated using stable DPPH antioxiidant radical ?
Bioactive Components and Antioxidant Properties of Terminalia arjuna L. Extracts
Authenticated samples of leaves and bark were separately packed in polythene bags and transferred to the Natural Products Research Laboratory, Government College University Faisalabad. Terminalia arjuna based phytochemicals are considered as one of the best heart tonic [ 7 ] therefore, it antioxidxnt be used on daily bases as tonic for healthy cardiovascular system.
The samples from 6. The antioxidants are molecules capable of decreasing or preventing the oxidation of substrate molecules.
The absorbance of the resulting solutions and the blank were recorded after 1 hour at room temperature. Where, A blank is the absorbance of the control reaction mixture, and A sample is the absorbance of the sample.
Home Publications Conferences Register Contact. Activity of extract increases with the increase in concentration of phenolic compounds.