Medicinal plants used in the traditional medicine are wellknown significant sources of natural antioxidants. The powder samples and methanol extract of 11 medicinal plants were subjected to analysis of proximate composition and measurement of antioxidant activity. Antioxidant properties of medicinal plants from peru. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Asteraceae species were widely applied in traditional medicines in asian countries as sources of natural antioxidants and antimicrobial agents. The airdried plant samples were into uniform powder using milling machine separately. Green tea, oligomeric procyanidins from grape seed and pine bark, bilberry, and ginkgo exhibited taa in the range of 5. The free radical scavenging activity against 1,1diphenyl2picryl hydrazyl dpph was evaluated during the course of work.
Study of total phenolic and flavonoid content, antioxidant activity and antimicrobial properties of medicinal plants volume 1 issue 1 2014 sarabjot kaur,1 poonam mondal2 1department of pharmaceutical sciences, assam university, india 2department of biotechnology, lovely professional university, india. Pharmacological evaluation of bangladeshi medicinal plants. Antioxidant activity and nutraceutical property of the. Diospyros malabarica is a plant from ebenaceae family. The present investigation suggests that medicinal plants which possess good antioxidant potential are the best supplements for the diseases associated with oxidative stress. Study of total phenolic and flavonoid content, antioxidant. The ascorbic acid, carotenoids and total phenol contents with antioxidant activity were also determined. Examination of the phenolic profile and antioxidant. However, majority of plants have not yet been screened for such activity. May 26, 2009 the aim of this work was to study the structureactivity relationships of the antioxidant activity of natural coumarins isolated from four korean medicinal plants 117 and four purchased coumarins 1821.
Wine has been recognized for its antioxidant activity kinsella et al. Antioxidant activities of coumarins from korean medicinal. Extract, free radical, antioxidant activity, medicinal plant. Antioxidant and antiinflammatory medicinal plants have.
Minimal inhibitory concentration of metanoic extracts ranged from 6. At the same time, the antioxidant activities of some essential oils, measured through. The many number of medicinal plants are used in the cellular and metabolic. Pharmacological evaluation of bangladeshi medicinal plants for antioxidant activity m. Ferric reducing antioxidant power frap assay was used to measure the total antioxidant power of the extracts. Antioxidant activity in medicinal plants associated with the.
Pdf antioxidant activity of selected medicinal plants of. Antioxidant activity of medicinal plants from southeastern. Chinese medicinal plants contain a wide variety of natural antioxidants, such as phenolic acids, flavonoids and tannins and possess more potent antioxidant activity than common dietary plants cai et al. Antibacterial, antifungal and antioxidant activities of some medicinal plants 2146 pak. For antioxidant activity, the radical scavenging activity, reducing power and phenolic contents of ethanol plant extracts were determined. Estimation of phytochemical content and antioxidant. Different parameters studied include phenolic contents, moisture, ash, crude fiber, fats and waxes.
Antioxidant activity and total phenolic content of some medicinal plants in urticaceae family. Medicinal plantsderived natural antioxidants, which are in the form of raw extracts andor chemical constituents, are very efficient to block the process of oxidation by neutralizing free radicals 3. Antibacterial and antioxidant activity of medicinal plants article pdf available in international journal of plant sciences 81. These compounds have multiple biological effects including antioxidant activity. These compounds have been used as antioxidant, antcarcinogenic, antifungal, antibacterial, antispasmodic, antiinflammatory and antidiabetic. Some indian traditional medicinal plants w ith antioxidant. Table 1 gives a list of medicinal plants analysed along with parts used and medicinal uses. Determination of antioxidant activity by using in vitro methods 2. Antibacterial and antioxidant activities of 8 aromatic plants from the balkan peninsula were studied. The content of total phenolics in the extracts was determined spectrometrically according to the folin.
Medicinal plants are good sources of bioactive compounds that guards the body against cancer and chronic ailments. Different research has reported the cardioprotective activity of medicinal plants pointing to the antioxidant potentials as possible mechanism. Pdf antioxidant activity and total phenolic content of some. Antioxidant activity of medicinal and aromatic plants. There is an increasing interest in natural antioxidants e. Antioxidant activity, flavonoid, phenolic, medicinal plant, traditional healer, principal component analysis. Frap assay was done according to benzie and strain procedure 40. At the same time, the antioxidant activities of some essential oils, measured through several methodologies, are presented and compared. Antioxidant activity assays were performed by the method described by benzie and strain 14 with a. Antioxidant activity of selected medicinal plants journal. Acetylcholinesterase inhibition and antioxidant activity of. This study aimed to evaluate dpphscavenging capacities and antimicrobial activities of nine asteraceae species collected from southern vietnam. The results indicate that the phenolics, flavonoids and trace metals play an important role in the antioxidant activities of medicinal plants. Several herbs and spices have been reported to show antioxidant activity.
Rahman2 1department of pharmacy, jahangirnagar university, dhaka, bangladesh. A large number of medicinal plants and their purified constituents have shown beneficial therapeutic potentials. The present study investigates comparative antioxidant, anticancer activity and qualitative, quantitative and spectral characterization of phytochemicals present among aqueous and ethanolichydroethanolic leave extracts of four medicinal plants viz. The antioxidant activity of polyphenols is accredited to their redox properties i. The dried 500 g powder of the eleven plant parts was extracted with meoh in a soxhlet apparatus. Dpphscavenging and antimicrobial activities of asteraceae. In the present study, a brief description of the mechanism involved in the majority of techniques used for the evaluation of antioxidant activity of essential oils is given. Pdf in vitro antioxidant and antiproliferative activity. Plants constitute a good source of cheap and affordable drugs and medicinal plants possess they show little or less side 2. Introduction in recent times, interest in the application of plant extracts in the food industry has continued to grow, mainly because of their antioxidant properties and associated healthpromoting effects for humans. Phytochemical screening, antimicrobial and antioxidant. Jul 19, 2010 in this study, 11 medicinal plants were analysed for their proximate composition and antioxidant activity. Extracts of medicinal plants syzygium aromaticum, mentha piperita, cinnamomum verum, pimpinella anisum and zingiber purpurea were investigated for their biological activity. Antioxidant activity in medicinal plants associated with.
Pdf phytochemical screening and antioxidant activities. Effect of extraction solventtechnique on the antioxidant activity of selected medicinal plant extracts bushra sultana 1, farooq anwar 1, and muhammad ashraf 2 1 department of chemistry and biochemistry, university of agriculture, faisalabad38040, pakistan 2 department of botany, university of agriculture, faisalabad38040, pakistan. Antioxidant activity, total phenolic and flavonoid content of. Objective the objective of the study was to investigate the antioxidant activity of selected medicinal plants. Antioxidant activity of plant extracts was assessed by. Antioxidant activity of phenol and flavonoid contents of some iranian medicinal plants article pdf available in african journal of biotechnology 511 november 2005 with 1,460 reads. A single plant may have diversity of phytochemicals, which represents a number of pharmacological properties. Antioxidant and antimicrobial activities were determined by standard protocols. Pdf medicinal plants with antioxidant and free radical.
Antibacterial and antioxidant activity of traditional. The antioxidative activity of a total of 92 phenolic extracts from edible and nonedible plant materials berries, fruits, vegetables, herbs, cereals, tree materials, plant sprouts, and seeds was examined by autoxidation of methyl linoleate. Plants contain a wide variety of free radical scavenging molecules, such as polyphenols, dietary glutathione, vitamins and endogenous metabolites. Various herbs and spices have been reported to exhibit antioxidant activity, including ocimum sanctum, piper cubeba linn. The main active antioxidant compounds isolated from. Introduction experimental evidence suggests that free radicals and reactive oxygen spec ies ros can be involved in high number. For the past three decades, antioxidants are used to treat complex disorders such as cancer and alzheimers disease. Plantderived products such as polyphenols, terpene. A lot of studies have been done on medicinal values of higher plants but less on marine sources and wild nonedible mushrooms. Estimation of phytochemical content and antioxidant activity.
The proximate compositions of different medicinal plants are presented in tables 2 and 3. Previous studies showed that a wide range of medicinal plants exerted antioxidant and free radical scavenging activity. Panchawat and sisodia 2010 studied in vitro antioxidant activity of saraca asoca roxb. Free radical scavenging activity was evaluated using 1,1. Evaluation of antioxidant activity of medicinal plant. Aniruddha sarma, pranjal sarmah, debaleena kashyap, snehashish dutta and mantu mahanta institutional biotech hub, department of biotechnology, pandu college, guwahati12 abstract. Antioxidant activity exhibited by medicinal plants, vegetables and fruits from north of iran reyhaneh sariri. Effect of extraction solventtechnique on the antioxidant. Antioxidant activity and phenolic content of some medicinal. Phytochemicals screening and evaluation of antioxidants. Commonly used medicinal plant extracts with standardized content of polyphenols were investigated for their total antioxidant activity taa. Antioxidant activity exhibited by medicinal plants. The antioxidants compounds like ascorbic acid, total phenols and tannins were also evaluated in these plants. Libyan capparis spinose has good antioxidant activity.
Photoprotective potential of medicinal plants from cerrado. These categories included such symptoms as sore eyes, swollen limbs and heart chest pain. The major plant compounds characterized by antioxidant activity are polyphenols. Antioxidant and antiinflammatory activities of selected. The results suggest that phenolic compounds are the significant contributors to the antioxidant activity of the medicinal plants studied. Antioxidant properties of several medicinal plants growing. Gangavaram maheshwar reddy,visweswaran rao dolly sarma etal evaluation of antioxident activity index by the 2,2 diphenyl 1 picryl hydrazyl method of 40 medicinal plants. Antioxidant activity, total phenolic and flavonoid contents. Antioxidant activity, total phenolic and flavonoid. Comparative phytochemical investigation, antioxidant and. However, there is little information available concerning antioxidant activity of medicinal plants growing wild in northeastern iran. Abstract liver disease has become one of the major health problems in the world, and the death rate is going rapidly to increase. Medicinal plant tissues are commonly rich in phenolic compounds such as flavonoids, phenolic acids, stilbenes, tannins, coumarins, lignans and lignins. Ravipati, sundar rao koyyalamudi, sang chul jeong, narsimha reddy, paul t.
Some of these plants have shown potent antioxidant activity16,7. Rhizophora mangle is a plant from rhizophoraceae family. The presences of phytochemicals, antibacterial and antioxidant activities were investigated. The antioxidant activity of these two medicinal plants was evaluated by measuring reducing ability, free radical scavenging activity by dpph and hydrogen peroxide methods. Minimal bactericidal concentration of metanoic extracts ranged from 12. Antioxidant activity and nutraceutical property of the fruits of an ethno medicinal plant.
Antioxidant activity was evaluated in vitro using the cationradical 2,2. In vitro antioxidant properties evaluation of 10 iranian medicinal. The study showed that the plant revealed an antioxidant activity 80 % with ic 50 0. Antibacterial activity in vitro of medicinal plants wardah shahid 1, rabia durrani 2, saira iram2, maryam durrani 3, fawad ali khan 4 1plant taxonomy lab, department of plant sciences, faculty of biological sciences, quaidiazam university, 45320, 00925190643194, islamabad, pakistan. The meoh extracts of the 2 most antimicrobial active plants, t. Antioxidant activity of plant extracts containing phenolic. The moisture content of the plant samples was found to. The eight plant species evaluated in the study demonstrated variability in antioxidant characteristics. With the dpph test the ability of a compound to act as a donor for hydrogen atoms or the antioxidant activity of some medicinal plants 200 table 2. Caffea arabica showed greater antioxidant activity measured as scavenging of dpph, superoxide radicals, reducing power and inhibition of microsomal lipid peroxidation. The bark extract of the plant showed scavenging activity of hydroxyl radicals and the extract contained polyphenols, carbohydrates and sterols4. Epidemiological, clinical and experimental studies have provided evidence that myocardial infarction is largely preventable by suppression of free radical generation and augmentation of endogenous.
Keeping the above in view the present chapter focuses on the i diversity of antioxidant phytochemicals in medicinal. Screening of in vitro antioxidant activity of methanolic. Felicia muricata, antioxidant, dpph, abts, radical scavenging activity. Method collected plant species were subjected to maceration in methanol for 72 hrs. Understanding their mechanism of action and therapeutic efficacy, 2012. Antioxidant properties of medicinal plants from peru 73. The wine we tested had significantly lower free radical activity than 86% of the medicinal plants tested with 20% of the plants also higher in superoxide scavenging. Pdf antibacterial and antioxidant activity of medicinal. Page 21 dpph free radical scavenging activity of some leafy vegetables used by tribals of odisha, india rajani kanta sahu 1, manoranjan kar 2, rasmirani routray 3, 1. Phytochemicals screening and evaluation of antioxidants and. Previous studies showed that a wide range of medicinal plants exerted antioxidant activity. However, due to having a large variety of medicinal plants species, all of the major medicinal plants have not yet been evaluated for their medicinal properties, including antioxidant activity. Antioxidant activity of some common medicinal plants.
The assays employed were ferric reducing antioxidant power, trolox equivalent antioxidant. This article is part of the special issue of flavour and fragrance journal entitled aromatic plants. Screening of medicinal plant extracts for antioxidant activity. Antioxidant activity of some common medicinal plants impact factor. Antioxidant activity, total phenolic and flavonoid contents of selected medicinal plants used for liver diseases and its classification with chemometrics harto widodo 1,2, sismindari sismindari3, widya asmara 4, abdul rohman 3,5 1centre study of biotechnology, gadjah mada university, yogyakarta, indonesia.
The antioxidant activity of the 90 plant extracts was determined by 2, 2 diphenyl1picrylhydrazyl dpph assay. Antioxidant properties of indian medicinal plants wiley online library. Abstract identification and characterization of natural products with antioxidant and antiproliferative activity has received much interest over the past few years. In most of the plants the tpc and the antioxidant activity of the ethanol extracts were significantly higher p of water alone extracts. Dpph scavenging activity has been used by various researchers as a quick and reliable parameter to assess the in vitro antioxidant activity of crude plant extracts. The studied medicinal plants have interesting antioxidant properties, antibacterial activity and a phytochemicals composition that could provide scientific evidence for some folk uses in the treatment of diseases and therefore it can provide natural source of antibacterial drugs and antioxidants and can be useful. Antioxidant and antiinflammatory activities of selected medicinal plants containing phenolic and flavonoid compounds lin zhang, anjaneya s. Antioxidant properties of several medicinal plants. Introduction the many number of medicinal plants are used in the cellular and metabolic disease. Aug 19, 2010 in the present study, a brief description of the mechanism involved in the majority of techniques used for the evaluation of antioxidant activity of essential oils is given. Results showed that both of ethanolic and water extracts of some plant possessed high cytotoxic and antioxidant activities and inhibited the cell growth of cancer cells. The most common and widely distributed group of phenolic compounds in plants is flavonoids.
Photoprotective potential of medicinal plants from cerrado biome brazil in relation to phenolic content and antioxidant activity. Antibacterial activity in vitro of medicinal plants. The study aimed to assess the antioxidant activity. Antimicrobial and antioxidant activities of some nigerian. Study of antioxidant activity of some medicinal plants having high content of caffeic acid derivatives agnieszka tajnerczopek 1, mateusz gertchen 1, elzbieta rytel 1, agnieszka kita 1, alicja z. Evaluation of antioxidant activity of medicinal plant 885 figure 2.
Study of antioxidant activity of some medicinal plants. The most practical way to fight degenerative diseases is to increase antioxidant activity in our body and that could be achieved by consumption of vegetables, fruits or edible plants. In vitro antioxidant and anticancer activity of leea. Anthocephalus cadamba, aegle marmelos, emblica officinalis and moringa oleifera. Parts of medicinal plants were extracted with acetone 50%.
The aim of this work was to study the structure activity relationships of the antioxidant activity of natural coumarins isolated from four korean medicinal plants 117 and four purchased coumarins 1821. The phytochemical analysis of these medicinal plants have revealed a large number of compounds including flavonoids and phenolics which have shown potent antioxidant activity. Antioxidant activity of african medicinal plants request pdf. These plants exhibit strong antioxidant activity that can explain their uses in traditional medicines in the past as well as prese nt.
Pdf antioxidants or inhibitors of oxidation are compounds which retard or prevent the oxidation and in general prolong the life of the oxidizable. The antioxidant properties of methanol extracts of 12 indian medicinal plants, traditionally used in dis ease areas that probably involve free radical mechanisms. Antioxidant is any substance which when present at low concentrations compared with those of an oxidizable substrate, significantly delays or prevents oxidation of substrate. Phytochemical investigation and in vitro antioxidant activity. Natural compounds especially those that are derived from medicinal plants provide a large number of antioxidants useful for humans. Journal of medicinal plant research vol 624pp 40824086 26 june, 2012. Rosemary, sage, thyme, nutmeg, turmeric, white pepper, chilli, pepper, ginger, garlic and several medicinal plants extracts exhibit antioxidant activity 41,42,43,44. Antibacterial, antifungal and antioxidant activities of some.