antioxidant activity of medicinal plants

Abstract. 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. (edelweiss) is recognized as a frequent constituent of anti-aging skin care products, providing increased antioxidant and anti-inflammatory defense. 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. It has been hypothesized that plant antioxidants may contribute to the beneficial health effects of dietary plants. Their antioxidant activity accounted for 69% of the activity of the reference compound -tocopherol. We evaluated the potential of salicylic acid (SA) priming for overcoming the adverse effects of cadmium stress in Mentha arvensis L. plants. 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. 2016). 4084 J. Med. Medicinal plants have been used as holistic therapies to support human health and wellbeing all over the world. Therefore, the aim of the present study was to evaluate the antibacterial, antiplasmodial, antitrypanosomal, and antioxidant activities of some Sudanese medicinal plants. 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. 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. To experimentally validate these uses, plant material was collected in the Gran Paradiso National Park, Aosta Valley . 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. 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. Synergistic antioxidant activity of selected medicinal plants in Brunei Darussalam and its application in developing fortified pasta. The radical scavenging activities . thanol extracts of the plants evaluated showed low antioxidant activity, with a IC50 between 1.94 and 6.16 mg/ml. 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. 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. Several methods have been developed to assay the antioxidant activity of herbal and plant extracts. Results The . 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. Pomegranate peels crude juice exhibited the highest antioxidant activity assessed by the aforementioned methods in comparison with other medicinal plants crude juices. 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. Flavonoid contents were between 25.15 0.8 and 78.3 4.5 mg g-1. O. Odukoya, and H. A. J Biol Sci. Extracts were prepared by maceration of each plant material in chloroform: methanol (C: M; 1:1 v/v) mixture. 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 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 . around the globe About three quarters of the world's population rely on plant and their [2]. 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. A review of the antioxidant potential of medicinal plant species. 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. Antioxidant activity of the plant extracts by DPPH-free radical scavenging activity. 2009;3 . . 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 . In medicinal use, antioxidant activity is generally due to their ability to exhibit radical scavenging capacities. In the current study, the distribution of these moieties in three medicinal plant extracts belonging to different families was assessed. ), lovage ( levisticum officinale l.), tarragon ( artemisia dracunculus l.) and white mulberry ( morus alba l.), 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. Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. . In present study, we carried out a systematic record of the relative antioxidant activity in selected Iranian medicinal plant species' extracts. The antioxidant activities of these extracts were evaluated using 1, 1-Diphenyl-2-picrylhydrazyl ( DPPH) assay. . In addition, the phytochemical screening, total phenolic, flavonoid content, and antioxidant properties were evaluated. 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 activity of eight polysaccharides ranged from 20 to 45%, while the fructofuranan from P. lanceolata var. medicinal plants is more effective and safe remedy. Impulse voltamperometry was used to study the antioxidant activity of a series of tinctures from medicinal plants. Methods: The ethanolic extracts of the leaves of Carica papaya Linn. Previous article Next article Keywords Polysaccharides Antioxidant activity 1. Deepa et al., (2013) investigated the correlation between the polyphenols, flavonoid and tannin content with the antioxidant activity of the methanolic and . Hassawi D., Kharma A. Antimicrobial activity of medicinal plants against Candida albicans. 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. The rhizome has a long tradition in popular medicine, while ethnobotanical surveys have revealed local uses of leaves for superficial injuries. Journal of Medicinal Plants Research. A number of secondary metabolites are present in its leaves, fruits, and other parts of the plant. Antioxidant and cytotoxic activities and phytochemical screening of four Philippine medicinal plants. Thus, the present article . 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. Plants Res. Deepa et al., (2013) investigated the correlation between the polyphenols, flavonoid and tannin content with the antioxidant activity of the methanolic and . 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging effect of the extracts was determined . The antioxidant activity of these plant 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 . Leontopodium alpinum Cass. 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. This review presents some information about the antioxidant/antiradicals and. antioxidant activities [19-24]. Several reports are available on the antioxidant activity of medicinal plant extracts in India. The threeplant extracts have reduced the pain by both these methods in mice in a dosedependent manner. 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. Five plant species namely, Phyllanthus acidus, Piper aduncum, Pandanus amaryllifolius, Macaranga peltata and Acacia mangium were analysed for their effective in-vitro bioactivity. Phenolics also provide protection against UV radiation through their potent radical scavenging ability. Antioxidant compounds from plants can minimize the generation of free radicals [6,7] and alleviate diseases caused by oxidative stress [8,9]. 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). 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. Phenolic compounds have been shown to be responsible for the antioxidant activity of plant materials and hence many of the natural polyphenols . In the present investigation focused on qualitative, quantitative phytochemical and in vitro antioxidant activity of Cadaba fruticosa and Capparis . 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. INTRODUCTION Plants, as the source of medicine, have been playing an important role in the health services [1]. 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. 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. typica schneider, euonymus alatus apterus, hovenia dulcis thunberg, prunus yedoensis matsumura, albizzia julibrissin Fruits of Phyllanthus acidus were found to have antibacterial, cytotoxic and antioxidant properties using methanol as solvent. thanol extracts of the plants evaluated showed low antioxidant activity, with a IC50 between 1.94 and 6.16 mg/ml. 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 . This plant extract might be a promising source of natural antioxidant which can be effective for the treatment of oxidative stress related disorders. Indeed, increase in total antioxidant status has been shown to be important in recovery from malaria. 2017), anti-inflammatory (Tavakoly et al. KEYWORD: Antioxidant activity, DPPH assay, Total antioxidant activity, Medicinal plant. 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 . The reducing power of Herba Lycopi and Cortex Gleditsiae was more apparent than with other plants. Sl. By using our site, you agree to our collection of information through the use of cookies. Production of proinflammatory molecules such as TNF- . Several reports are available on the antioxidant activity of medicinal plant extracts in India. Antioxidant compounds from plants can minimize the generation of free radicals [6,7] and alleviate diseases caused by oxidative stress [8,9]. 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. In this study, total 11 phytochemicals were screened from methanol extract of four medicinal plants, wherein .

antioxidant activity of medicinal plants

antioxidant activity of medicinal plants