antioxidant activity of medicinal plants


Medicinal plants have been reported to have antioxidant, antibacterial, or antimicrobial activities that have been credited to the presence of secondary metabolites such as alkaloids, flavanols, flavones, tannins, saponins, steroids, and other secondary metabolites [].Many studies have also reported that medicinal plants contain a wide variety of free radical scavenging molecules, which act . The value of medicinal plants lies in some chemical substances having physiological role in human body; the most important of these are alkaloids, polyphenols and flavonoids. Plants Res. Methods The total phenolic and flavonoid content were determined using standard method while antioxidant activity was determined by DPPH free radical scavenging activity method. It was observed that the plant extract showed antimicrobial activity against gram-positive bacteria and less activity against gram-negative bacteria 15, whereas the present study result . [View Full Article DOI] ABSTRACT: The aim of this study was to explore phytochemical profiling, antioxidant and antibacterial activity of four medicinal plants including Catharanthus roseus, Aegle marmelos, Moringa oleifera, and Ageratum conyzoids grown in Sylhet district, Bangladesh. The phenolics and flavonoids of medicinal herbs contribute to the antioxidant activities of plants [4,6,10], and act as anti-inflammatory agents . A number of secondary metabolites are present in its leaves, fruits, and other parts of the plant.

Background This study was focused on the measurement of anticancer properties of six medicinal plants from western Nepal in three cell lines; HeLa, Hep3B, and HCT116, and anti-inflammatory properties in RAW 264.7 cell line through NO, PGE2, and TNF- production. Fruits of Phyllanthus acidus were found to have antibacterial, cytotoxic and antioxidant properties using methanol as solvent. This study indorsed that CME has marked antioxidant activities. In addition, the phytochemical screening, total phenolic, flavonoid content, and antioxidant properties were evaluated. It has been hypothesized that plant antioxidants may contribute to the beneficial health effects of dietary plants. medicinal plants is more effective and safe remedy. The antioxidant activity of these plant Synergistic antioxidant activity of selected medicinal plants in Brunei Darussalam and its application in developing fortified pasta. Najeebah Az . The antioxidant activity of the plant extracts was determined by a spectrophotometric method based on the ability of an antioxidant to reduce a ferric (Fe 3+) ion from the Fe 3+ -TPTZ complex to the ferrous (Fe 2+) ion from a Fe 2+ -tripyridyltriazine complex through the donation of an electron at low pH 32. This plant extract might be a promising source of natural antioxidant which can be effective for the treatment of oxidative stress related disorders. Medicinal plants contain blend of chemical compounds which may operate singly or in combination to heal diseases and for improving health as they are a good source of anti-oxidants (Bhatt et al. (edelweiss) is recognized as a frequent constituent of anti-aging skin care products, providing increased antioxidant and anti-inflammatory defense. Moreover, these plants also act as a potential host to beneficial microorganisms including bacteria and fungi (endophytes) which are considered as the most prospective source of bioactive compounds and are of immense importance to a wide range of areas like medicine . A significant . J Ethnopharmacol 108: 31-37. In the current study, we carried out a comparative analysis of the antioxidant activities of extracts of the selected leaves of 6 common medicinal plants. Tested material Code % DPPH Scavenging activity at 50 g/ml IC50 (g/ml) 1 Aegle marmelos Methanolic extract 23.63 - Water extract 24.94 - 2 Albizzia lebbeck Methanolic extract 94.11 10.18 (8.46-12.18) The studies show the medicinal plants with emphasis on their antimicrobial, antioxidant properties of Foeniculum vulgare, Cuminum cyminum, Pegnum harmala, Rosmarinus officinalis and Chenopodium album. Hassawi D., Kharma A. Antimicrobial activity of medicinal plants against Candida albicans. . The antibacterial and antioxidant activities and phytochemical contents of extracts, obtained from eight medicinal plants used by Aboriginal people of New South Wales, Australia, for the treatment of skin related ailments, were assessed to add value to and provide an evidence-base for their traditional uses. Antioxidant activity of the plant extracts by DPPH-free radical scavenging activity.

the antioxidant activities of ethanolic extracts obtained from medicinal plants (scutellaria baicalensis georgi, acanthopanax sessiliflorum seeman, pueraria lobata ohwi, portulaca oleracea linne, crataegus pinnatifida bunge var. The antioxidant hypothesis is however under discussion, and recent evidence suggested that its role has heavily been overestimated [25]. J Biol Sci. The radical scavenging activities . On continuation of our screening project for the search of antioxidant activity of popular medicinal plants in Iran, we studied 13 plant extracts. The aqueous extracts of 13 medicinal plants widely used in oriental medicine were examined for their reducing power, scavenging ability toward superoxide and hydroxyl radicals, and their inhibitory effect on lipid peroxidation. Full Article. . Keywords: Analgesic, Anthurium crystallinum, Antioxidant, Bougainvillea glabra, Licuala grandis. Their antioxidant activity accounted for 69% of the activity of the reference compound -tocopherol. ), lovage ( levisticum officinale l.), tarragon ( artemisia dracunculus l.) and white mulberry ( morus alba l.), In the current study, the distribution of these moieties in three medicinal plant extracts belonging to different families was assessed. The antioxidant activity was determined by measuring the radical scavenging effects against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and ferric-reducing (FRAP) capacity. In medicinal use, antioxidant activity is generally due to their ability to exhibit radical scavenging capacities. Methods: In the current study ethanolic extract of Ocimum kilimandscharicum, Thymus serpyllum, Spilanthes acmella and their combination in equal ratio were used for their ability to counter oxidative stress. The studies show the medicinal plants with emphasis on their antimicrobial, antioxidant properties of Foeniculum vulgare, Cuminum cyminum, Pegnum harmala, Rosmarinus officinalis and Chenopodium album. 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging effect of the extracts was determined . & Perr.. Production of proinflammatory molecules such as TNF- . The interest of our work lies in the study of the antioxidant activity of five plants including Psidium guajava L., Euphorbia hirta L., Combretum micranthum G. Don, Eucalyptus camaldulensis Dehn and Terminalia avicennioides Guill. Pomegranate peels crude juice exhibited the highest antioxidant activity assessed by the aforementioned methods in comparison with other medicinal plants crude juices. According to the folk experts in this field, there are so many cases that have benefited from treatment by these herbal medicinal plants after they lost their faith in treatment by the medicament. Background In an attempt to explore the scientific basis for the pharmacological benefits the antioxidant and antimicrobial activities of Ipomoea mauritiana whole plant methanol extract were assessed. 2013 ). The phenolics and flavonoids of medicinal herbs contribute to the antioxidant activities of plants [4,6,10], and act as anti-inflammatory agents . Previous article Next article Keywords Polysaccharides Antioxidant activity 1. antioxidant activity are capable of exerting protective effects against oxidative stress in biological systems (13-16). libor roots was practically inactive. Results The . Therefore, the aim of the present study was to evaluate the antibacterial, antiplasmodial, antitrypanosomal, and antioxidant activities of some Sudanese medicinal plants.

In present study, we carried out a systematic record of the relative antioxidant activity in selected Iranian medicinal plant species' extracts.

In the present investigation focused on qualitative, quantitative phytochemical and in vitro antioxidant activity of Cadaba fruticosa and Capparis . . Medicinal plants have been known to treat simple to life-threatening diseases in different communities of Nepal for many years. The reducing power of Herba Lycopi and Cortex Gleditsiae was more apparent than with other plants. The total phenol varied from 24.1 1 to 289.5 5 mg g -1 in the extracts. Phenolics also provide protection against UV radiation through their potent radical scavenging ability. In spite of all these great attributes and potentials ascribed to medicinal plants used for the management/treatment . Leaves L. Antioxidant activity by DPPH radical scavenging method of ageratum conyzoides. [Caricaceae] , stem bark of hence, the aim of this work was to study the antioxidant activity of extracts obtained from the following medicinal plants: caraway ( carum carvi l.), coltsfoot ( tussilago farfara l.), dandelion ( taraxacum officinale f.h.wigg. A possible mechanism of the antioxidant action of . Several reports are available on the antioxidant activity of medicinal plant extracts in India. The focus of this study was to investigate the anti-plasmodial activity, cytotoxicities and antioxidant properties of eight (8) Ghanaian medicinal plants. The plants were collected from the district of Pithoragarh, Uttarakhand and extracted by soxhlet's apparataus using absolute ethanol (99.9%). A review of the antioxidant potential of medicinal plant species. In recent years, many researchers focus on medicinal plants and most of the pharmaceutical industry is vastly reliant on plant materials for the extraction of therapeutically important compounds. Abstract This study investigates the influence of extraction system on the extractability of polyphenol compounds and antioxidant activity of various medicinal plants. One hundred and twenty six Vietnamese traditional herbals belonging to 59 families were screened for their free radical (DPPH) scavenging activity and inhibitory effect on lipid peroxidation. KEYWORD: Antioxidant activity, DPPH assay, Total antioxidant activity, Medicinal plant. Several methods have been developed to assay the antioxidant activity of herbal and plant extracts. Those phenolics are mostly regarded to confer upon the antioxidant activity of medicinal and food plants, making a marked contribution in the fight against many pathological conditions such as. The antimicrobial . Leontopodium alpinum Cass. INTRODUCTION Plants, as the source of medicine, have been playing an important role in the health services [1]. The antioxidant activities of four medicinal plants traditionally used in the treatment of malaria in southwestern Nigeria were determined. Suckers of plants were primed with SA before transplanting them into soil. The seeds and leaves of this herb are broadly used for medicinal objectives, such as an anti-microbial (Subhapriya and Gomathipriya 2018), and anti-cancer (El Bairi et al. Methods: The ethanolic extracts of the leaves of Carica papaya Linn. Conclusion: In sum, it can be said that the threeplant species showed potent antioxidant and analgesic activities. Peucedanum ostruthium (L.) W. D. J. Koch (Apiaceae) is a worldwide perennial herb native to the mountains of central Southern Europe. malaria. The study showed that a selected medicinal plant possesses potential against microbes and therapeutic significance and all the selected plant showed significance antioxidant potential up to 98 % RSA. This study evaluated potential antidiabetic and antiobesity properties in vitro of selected medicinal plants. Effective concentrations were determined and a series of comparative evaluations of their antioxidant and antiradical activities was constructed; these were maximal in St. John's wort, ginseng, rosewort, and Eleutherococcus. This review presents some information about the antioxidant/antiradicals and. A, Proenc C, Serralheiro MLM, Arujo MEM (2006) The in vitro screening for acetylcholinesterase inhibition and antioxidant activity of medicinal plants from Portugal. Antioxidant activity of different medicinal plants using DPPH scavenging method. To experimentally validate these uses, plant material was collected in the Gran Paradiso National Park, Aosta Valley . In this study, total 11 phytochemicals were screened from methanol extract of four medicinal plants, wherein .

The study showed that a selected medicinal plant possesses potential against microbes and therapeutic significance and all the selected plant showed significance antioxidant potential up to 98 % RSA. . Antioxidant properties have been attributed to the essential oils but a great diversity of results has been reported, mainly attributed to the chemical composition of the essential oils and the diversity of tests used.

. Najeebah Az . Journal of Medicinal Plants Research. Arredondo F, Dajas F, et al. The phytochemicals such as phenolics, flavonoids, anthocyanins, carotenoids,. Medicinal plants have been used as holistic therapies to support human health and wellbeing all over the world. . Fortification of pasta with the plant powder blends had resulted a significant increase of DPPH antioxidant activity, while successfully maintaining indistinguishable features as the control pasta . At 30 days after . .

Screening of antioxidant activity of three Indian medicinal plants, traditionally used for the management of . Of these, MeOH extracts of seven plants, including Euphorbia thymifolia (leaf), Gnetum montanum (stem), Heterosmilax erythrantha (root), Morus alba (leaf), Syzygium formosum (leaf), Jussiaea repens . Antioxidant compounds from plants can minimize the generation of free radicals [6,7] and alleviate diseases caused by oxidative stress [8,9]. The chloroform and aqueous extracted of the selected plants were subjected to TLC bioautography for antioxidant activity later all the extracted were subjected for DPPH assay where the chloroform extracts were found . A number of medicinal plants used in the management or treatment of diabetes in folk medicine have been proven to possess a large amount of bioactive components which elicit antihyperglycemic or antidiabetic activity [371, 372]. typica schneider, euonymus alatus apterus, hovenia dulcis thunberg, prunus yedoensis matsumura, albizzia julibrissin Flavonoid contents were between 25.15 0.8 and 78.3 4.5 mg g-1. Antioxidant activities were evaluated by four assays: an antioxidant activity assay using Saccharomyces cerevisiae, a DPPH ((2, 2-diphenyl-1-picrylhydrazyl) assay to assess free radical scavenging . The threeplant extracts have reduced the pain by both these methods in mice in a dosedependent manner. Thus, Our systematic research showed that this three common plants of Sahara desert has diversified phytochemicals possessing satisfying extent of antimicrobial, antibiofilm and antioxidant activities. Extracts were prepared by maceration of each plant material in chloroform: methanol (C: M; 1:1 v/v) mixture. 2017), anti-inflammatory (Tavakoly et al. Solvent Extraction and Its Effect on Phytochemical Yield and Antioxidant Capacity of Woody Medicinal Plant, Polyalthia bullata Munirah Adibah Kamarul Zaman, a Azzreena Mohamad Azzeme, a, * Siti Nurhafizah Ramli, a Noor Azmi Shaharuddin, a,c Syahida Ahmad, and Siti Nor Akmar Abdullah b,c Polyalthia bullata is a woody medicinal plant that contains antioxidant compounds. thanol extracts of the plants evaluated showed low antioxidant activity, with a IC50 between 1.94 and 6.16 mg/ml. thanol extracts of the plants evaluated showed low antioxidant activity, with a IC50 between 1.94 and 6.16 mg/ml. No.

Thus, the present article . Among the extracts from Curcuma longa, Caffea arabica, Tribulus terrestris, Bacopa monnieri andTrigonella foenum- graecum, the Curcuma longaand coffee bean extract (Caffea arabica) showed greater antioxidant activity measured as scavenging of DPPH, superoxide radicals, reducing power and inhibition of microsomal lipid peroxidation. 4084 J. Med. Considering the growing demand and the protected status of edelweiss in many countries, alternative methods of production have been developed, one of [.] Sl. Different zone of inhibition was observed in same plants in different studies which revealed that L. usitatissimum plant shows significant activity against S. aureus and least activity against K. pneumonia.

B. Coker, "Phytochemical screening and free radical scavenging activity of some Nigerian medicinal plants," Journal of Pharmaceutical Sciences and Pharmacy . Impulse voltamperometry was used to study the antioxidant activity of a series of tinctures from medicinal plants. By using our site, you agree to our collection of information through the use of cookies. Fractionation of . Antioxidant compounds from plants can minimize the generation of free radicals [6,7] and alleviate diseases caused by oxidative stress [8,9]. Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. You searched for: Journal Medicinal Plants Remove constraint Journal: Medicinal Plants Publication year rev 7978-2022 Remove constraint Publication year rev: 7978-2022 Publication Year 2022 Remove constraint Publication Year: 2022 Subject ethyl acetate Remove constraint Subject: ethyl acetate Subject antioxidant activity Remove constraint Subject: antioxidant activity Subject flavonoids Remove . Deepa et al., (2013) investigated the correlation between the polyphenols, flavonoid and tannin content with the antioxidant activity of the methanolic and . Medicinal plants, as source of remedies, are widely used as alternative therapeutic tools for the prevention or treatment of many diseases. Among those, essential oils from aromatic and medicinal plants has been known to exhibit antioxidant and antiacetylcholinesterase properties (Perry et al., 2003; Politeo et al., 2007; Sacchetti et al., 2005; Savelev et al., 2003). The antioxidant activity of the two plant crude extracts against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical was determined by UV spectrophotometry at 518 nm. To commonly used medicinal plants with antioxidant activity known worldwide belong plants from several families, especially Lamiaceae (rosemary, sage, oregano, marjoram, basil, thyme, mints, balm), Apiaceae (cumin, fennel, caraway), and Zingiberaceae (turmeric, ginger). Table 3 shows the percentage scavenging activity of the selected medicinal plants and the concentration of each extract needed to decrease the initial DPPH concentration by 50% (IC 50). Hexane, Diethyl ether extract of plants was studied at 1% concentration. O. Odukoya, and H. A. Oxygen radical absorbance capacity (ORAC) and total polyphenol content of 25 Bulgarian medicinal plants subjected to water or 80 % acetone extractions were investigated and compared. Jasmine et al., (2015) evaluated antioxidant and anticancer property of Ficus carica fruits. 2009;3 . This study aims to analyze the phytochemicals as plant secondary metabolites, evaluate the antioxidant and antibacterial activities of Rubus ellipticus, Ziziphus mauritiana, Pyrus pashia, and Drynaria coronans extracts that are commonly being used as traditional medicine. Anacardium plants have received increasing recognition due to its nutritional and biological properties. Table 2Total polyphenol content and antioxidant activities of 20 Sri Lankan medicinal plant extractsa Plant name/ reference compound Total antioxidant activities IC 50 in DPPH assay g/mL b d FRAP assay M c IC 50 in NO assay g/mL Justicia adhatoda L. syn Adhatoda vasica Nees 151.571.56 4.350.23 241.703.45 Synergistic antioxidant activity of selected medicinal plants in Brunei Darussalam and its application in developing fortified pasta. Introduction Medicinal plants are potential sources of new drugs to improve the treatment of diseases whose treatment is associated to anti-oxidative agents. The effect of plant extracts (100-1000 g/mL) on TM3 Leydig cells was assessed using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) assay. Peter O, Magiri E, Auma J, Magoma G, Imbuga M, Murilla G. Evaluation of in vivo antitrypanosomal activity of selected medicinal plant extracts. Traditional remedies have a long-standing history in Cameroon and continue to provide useful and applicable tools for treating ailments. Many medicinal plants contain large amounts of antioxidants such as polyphenols, which can play an important role in adsorbing and neutralizing free radicals, quenching singlet and triplet oxygen, or decomposing peroxides. Five plant species namely, Phyllanthus acidus, Piper aduncum, Pandanus amaryllifolius, Macaranga peltata and Acacia mangium were analysed for their effective in-vitro bioactivity. 1,2 Accumulation of free radicals can cause pathological conditions such as . Introduction Plants have been widely used for healing diverse diseases, since ancient times. This study aims to determine the relationship between the antioxidant and anti-inflammatory activities of the thirteen herbs and two fungi extracts, and their total phenolic and flavonoid contents. Background: The medicinal plants have bioactive compounds which provide them unique properties against different diseases.Objective: The aim of this study was to determine the antioxidant and free radicals scavenging activities of medicinal plants such as Withania coagulans, Cestrum nocturnum, Cymbopogon citratus and Catharanthus roseus.Materials and methods: The antioxidant and free radicals . antioxidant activities [19-24].

Among the diverse Anacardium plants' bioactive effects, their antioxidant, antimicrobial, and anticancer activities comprise those that have gained more attention. Food Bioprod Process 2011;89:217- 33. All the tested plant extracts showed free radical scavenging activity. Production of proinflammatory molecules such as TNF- . In this study five different medicinal plants i.e., Bunium persicum, Dactylorhiza hatagaria, Satyrium nepalense, Urtica diocia, and Viscum album of Garhwal Himalayan region were screened for the presence of major phytochemical compounds and also analyzed for their antioxidant . 2016). The hot water (WE) and ethanol extracts (EE) of sweet gale (Myrica gale L.), roseroot (Rhodiola rosea L.), sheep sorrel (Rumex acetosa L.), stinging nettles (Utrica dioica L.) and dandelion (Taraxacum officinale L.) were tested for total antioxidant capacity using ferric reducing . The activity of eight polysaccharides ranged from 20 to 45%, while the fructofuranan from P. lanceolata var. The anti-plasmodial activity was determined using the SYBR green assay and the tetrazolium-based colorimetric assay (MTT) was employed to assess cytotoxicity of extracts to human RBCs and HL . Thus, Our systematic research showed that this three common plants of Sahara desert has diversified phytochemicals possessing satisfying extent of antimicrobial, antibiofilm and antioxidant activities.

Table 1. Jasmine et al., (2015) evaluated antioxidant and anticancer property of Ficus carica fruits. The Garhwal Himalayan region is rich in medicinal plants, greatly valued by local inhabitants for health care needs. 2006;6:104-109. In the present study, five medicinal plants were screened for their ovicidal activity againstHelicoverpaamigera ,Spodopteralitura ,Plutellaxylostella,Corcyracephalonica. 2018), anti-diabetic, and antioxidant agent (Bahmani et al. Here, the anticancer, antimicrobial and antioxidant activities of ten antioxidant-rich Cameroonian medicinal plants and of some of their isolated compounds are evaluated.The plant extracts were prepared by maceration in organic solvents. It is a traditional medicinal plant characterized by its leaves that have a wide range of biological activities such as antioxidants, high blood pressure, anti-cancer and anti-microbial as it . Indeed, increase in total antioxidant status has been shown to be important in recovery from malaria. The present study was conducted to evaluate preliminary phytochemical analysis and in vitro antioxidant activities of five plants (Olea europaea, Kigelia . This is not always the case when testing the antioxidant activities of plant extracts. Fortification of pasta with the plant powder blends had resulted a significant increase of DPPH antioxidant activity, while successfully maintaining indistinguishable features as the control pasta . Phenolic compounds have been shown to be responsible for the antioxidant activity of plant materials and hence many of the natural polyphenols . Abstract.

The antioxidant activities of these extracts were evaluated using 1, 1-Diphenyl-2-picrylhydrazyl ( DPPH) assay. A tocopherol graph was plotted by using-tocopherol as standard and the total antioxidant activity . We evaluated the potential of salicylic acid (SA) priming for overcoming the adverse effects of cadmium stress in Mentha arvensis L. plants. . Read more. The examined medicinal plants and natural products are potent androgenic . Antioxidant and cytotoxic activities and phytochemical screening of four Philippine medicinal plants. around the globe About three quarters of the world's population rely on plant and their [2]. The application of phytohormones through seed priming could enhance quality of important medicinal and aromatic plants (MAPs) under heavy metal stress. Deepa et al., (2013) investigated the correlation between the polyphenols, flavonoid and tannin content with the antioxidant activity of the methanolic and . The rhizome has a long tradition in popular medicine, while ethnobotanical surveys have revealed local uses of leaves for superficial injuries. In plants, phenolics can act as antioxidants by donating electrons to guaiacol-type peroxidases for the detoxification of H 2 O 2 produced under stress conditions 36. Go to: 1. Several reports are available on the antioxidant activity of medicinal plant extracts in India. The recent studies have investigated that the antioxidant effect of plant products is mainly attributed to phenolic compounds such as flavonoids, phenolic acids, tannins etc. In fact, several in vitro assays for the determination of antioxidant ability have been used.