This is the first report on the composition and the antioxidant activity of the essential oil of carya illinoinensis grown in tunisia. Chemical composition, antioxidant and biological activity. In vitro antibacterial, antifungal, and antioxidant. In addition, the essential oils studied encapsulated, have a similar antioxidant activity slightly higher in the lippi alba. When compared with individual eos, eoeo combinations diminished the.
Antioxidant activities and volatile constituents of various. Antioxidant activity of essential oils in foods essential oils in food. Antioxidant and antifungal activity of coriander coriandrum sativum l. Addition of eos to edible products, either by direct mixing or in. Essential oils composition and antioxidant properties of. Essential oil content and antioxidant activity of methanolic rhizome extract of two zingiberace plants in the hill of manipur kh. Seven percent of the tested essential oils were found to have very high antioxidant activity. Research article open access antioxidant activity of rosemary. The suppression is correlated with inflammationrelated enzymes and cytokines. Antimicrobial and antioxidant activity of essential oil and. Pdf on jan 10, 2015, elmiziani inaam and others published study of antioxidant activity of essential oils extracted from moroccan medicinal and aromatic plants find, read and cite all the. Although there is no accentuated bactericidal activity in the o.
This study was designed to examine the chemical composition and invitro antioxidant activity of the essential oil and methanolic extract of teucrium orientale subsp. The kirbybauer disc diffusion method was used to determine the antibiotic resistance profile of the isolates. Oct 10, 2012 a relationship between the composition of essential oils and their ability to inhibit the model reaction of cumene radical oxidation was established. Essential oil obtained from oregano origanum vulgare l. Antimicrobial and antioxidant activity and chemical composition of the essential oil of tanacetum macrophyllum waldst. Antioxidant activities and volatile constituents of. Antioxidant and antiinflammatory activities of essential. Asteraceae were evaluated for their antimicrobial and antioxidant activities in vitro. Chemical composition and antioxidant activity of essential oils from. Sesquiterpenesrich essential oil from above ground parts of. Antioxidant activity of essential oil of artemisia herba alba.
Experiments used for in vitro investigation of antioxidant activity of essential oils usually include 2. Additionally, clove, origanum and thyme essential oils revealed the strongest antioxidant activity. The chemical profile of essential oil was evaluated by the means of gas chromatography. Antioxidant capacity was evaluated using abts method. Research article antioxidant activity of essential oil and.
Pdf gcms analysis and in vitro antioxidant activity of. Antioxidant activity of rosemary rosmarinus officinalis l. Antioxidant activity of essential oils encapsulated in. The essential oil was isolated by hydrodistillation using a clevenger apparatus, and the identification and quantification of constituents, through gcms analysis. Antioxidant activity of the essential oil and methanolic. The essential oil showed a weak antioxidant activity. It was shown that azulenecontaining essential oils of chamomile, yarrow, and wormwood were capable of inhibiting the model reaction of initiated cumene oxidation, which was indicative of antioxidant activity. Chemical composition, antioxidant and antivibrio spp. Chemical composition, antifungal and antioxidant activity of. Essential oil eo from the peels of lime purchased at a market in ileife was extracted by the hydro. Chemical composition, antimicrobial and antioxidant.
Influence of nanoencapsulation on chemical composition, antioxidant activity and thermal stability of rosemary essential oil 1ahmed m. Danilovic faculty of technology, leskovac, serbia in the present work, essential oil has been obtained by clevengertype hy. Highlights major component of vetiveria zizanioides essential oil is cedr8enol 12. The gc and gcms analysis of the essential oil resulted in determination of 40 components representing 96. Pdf chemical composition and antioxidant activity of. In this study, we identify the chemical components and evaluate the antioxidant activity of the leaf and stem oils of h. The results of essential oils, methanol extract samples and bht antioxidant activity are presented in table 3. The present study was designated to evaluate the antimicrobial and antioxidant activities of the essential oil, obtained by using a clevenger distillation apparatus, water soluble polar and water insoluble nonpolar subfractions of the methanol extracts from aerial parts of satureja hortensis l. The antioxidant activities of the essential oil and its three major components citronellal. Chemical composition and antioxidant activity of essential oil, various organic extracts of cistus ladanifer and cistus libanotis growing in eastern morocco. Result of chelation activity of the essential oil and di erent root extracts is shown in table. Jul 07, 2014 besides 1,8cineole, antioxidant activity was determined also for.
The in vitro cytotoxic activity of the essential oils on two human tumor cell lines, viz, nasopharyngeal cancer kb and liver hepatocellular carcinoma hepg2 cell lines were examined using a modified mtt assay nouri et al. Chemical composition, antioxidant and antibacterial. Influence of nanoencapsulation on chemical composition. Essential oils eos are liquid mixtures of volatile compounds obtained from aromatic plants.
To isolate and analyse the chemical composition in the essential oils and free radical scavenging activity of different crude extracts from the fresh and dry leaves of vegetable plants of lactuca sativa l. Antioxidant activity of nigella sativa essential oil burits. The essential oil of black cumin seeds, nigella sativa l. Phytochemical and antioxidant activity of lavandula. Antibacterial and antioxidant activity of oregano essential oil. Essential oil and antioxidant activity essential oil was obtained by hydro distillation method clavenger, and analyzed by gas chromatographymass spectrometry gcms. The major constituents of sweet basil essential oils from three locations were linalool, estragole, methyl cinnamate, bicyclosesquiphellandrene, eucalyptol. Chemical composition, antioxidant, antimicrobial and. Pdf antiaflatoxigenic and antioxidant activity of an. The reducing power of the oil was determined according to the antioxidant activity dpph radical scavenging activity the method of liyanapathiranan and shahidi 2005 was used for the determination of scavenging activity of free radical in the essential oil. Antioxidant activity of the essential oil was determined using the 1,1diphenyl2picrylhydrazyl. A rapid evaluation for antioxidants, using two tlc screening methods, showed that thymoquinone and the components carvacrol, t.
Joylani devi institutional biotech hub, department of botany, presidency college, motbung, manipur,india. The antioxidant activity was tested using 2,2diphenyl1 picrylhydrazyl dpph. The study investigated the antibacterial activity of essential oil from the peel of citrus aurantifolia against eleven multidrugresistant mdr bacterial isolates of clinical origin. Mohammad 1department of food science and technology. Summary essential oils can be used as useful antioxidants in foods. Pdf antioxidant activity of the essential oil and metanolic extract. Interactions between essential oils, and essential oils and hydrosols were found to be as microbicide, and for the first time, antioxidant using the fractional inhibitory concentration.
The antioxidant activity of essential oils showed similarities in. Pdf a study on the total phenols content and antioxidant. The extracts and essential oils inhibit the growth of microrganisms and plant extracts showed significant antioxidant activity. The ability of reo to donate an electron and scavenge. In recent years, essential oils have been qualified as natural antioxidants and proposed as potential substitutes of synthetic antioxidants in food preservation. The essential oil exhibited significant inhibition in dpph free radical formation.
Pdf evaluation of antioxidant activity of essential oil. Scavenging abilities of the oils for the 1,1diphenyl2picrylhydrazyl dpph radical ranged from 39% for angelica seed. Antioxidant activity and total phenolic content of essential. Chemical composition and antioxidant activity of essential. The in vitro antioxidant activity was evaluated as a free radical scavenging capacity rsc, measured as scavenging activity of the. Oct 24, 20 essential oils eos are liquid mixtures of volatile compounds obtained from aromatic plants. The antioxidant activity of essential oils is independent of the droplet size of emulsions oil in water in the studied time interval 6 weeks. Antibacterial activity of essential oil from citrus. Antioxidant activity of chamomile essential oil and main components. Many eos have antioxidant properties, and the use of eos as natural antioxidants is a field of growing interest because some synthetic antioxidants such as bha and bht are now suspected to be potentially harmful to human health. Antibacterial and antioxidant activities of these essential oils could be due, in part, to the presence of several compounds, like carvacrol, thymol, citronellal and eugenol, in their chemical compositions. Carotene linolelic bleaching as well as measuring the total phenolic for both essential oils. Essential oil content and antioxidant activity of methanolic.
Evaluation of in vitro antioxidant activity and total phenol content of essential oil antioxidant activity of the rosemary essential oil reo was evaluated as free radical scavenging capacity rsc. Antioxidant and antiacetylcholinesterase activities of. Chemical composition, antioxidant and antimicrobial activity of the turmeric essential oil curcuma longa l. Comprehensive assessment of antioxidant activity of essential oils. Chemical composition, antioxidant and antimicrobial activity. Request pdf antioxidant activity of essential oils essential oils eos are liquid mixtures of volatile compounds obtained from aromatic plants. The present study describes antimicrobial and free radical scavenging capacity rsc together with the effects on lipid peroxidation lp of melissa officinalis essential oil.
Chemical composition, antioxidant and antibacterial activities of the essential oil of mentha spicata l. The ability of reo to donate an electron and scavenge the stable 1,1diphenyl2picrylhydrazyl dpph radical was investigated 24. Antioxidant activities of the essential oil and methanolic subfractions of teucrium orientale subsp. Antimicrobial and antioxidant activity of essential oil. The antioxidant activity was determined by using 2,2diphenyl1picrylhydrazil dpph, the result, ic 50 545. Antioxidant activity and volatile and phenolic profiles of. Evaluation of antioxidant activity of essential oil from ajwain trachyspermum ammi seeds.
Pdf antioxidant activity of chamomile essential oil and. Composition and antioxidant activity of essential oils. The inhibition of lipid oxidation in different systems oils, solutions of lipids in organic. Antioxidant activity of rosemary essential oil fractions. There are two main approaches to determining the in vitro antioxidant activity of essential oils. Antioxidant and anticancer activities of essential oil. Chemical composition and antibacterial and antioxidant. Regarding the phytochemical composition, the largest class. Antioxidant activity of the essential oil and its major terpenes of. The antioxidant activity of oregano essential oil is due to the presence of phenolic compounds like carvacrol, thymol, and pcymene, which act synergistically amorati et al. Therefore, the objectives of this study are to investigate chemical composition, antioxidant and antimicrobial activities of essential oils extracted from peels of the pomelos grown in. Antioxidant activity of selected essential oil components. Thirteen essential oils were examined for their antioxidant activity using three different assay systems.
Antioxidant activity of essential oil was conducted using dpph 2,2diphenyl1picrylhydrazyl freeradical scavenging assay 5. Antioxidant activity of the lavender essential oil in a linoleic acid system a the antioxidant capacity of the essential oil on inhibition of linoleic acid peroxidation was assayed using the thiocyanate method yen et al. In order to evaluate the potential of medicinal effects of the popular edible pulicaria inuloides yemen, the methanol, ethanol and diethyl ether extracts from leaves of pulicaria inuloides were analyzed for their antioxidant properties. In this test, the dpph of purple color is reduced in a yellow. The advantage of encapsulated essential oils in the nanoemulsions. Research article antioxidant activity of essential oils from. Hydrosols and essential oils on biological activities.
To our knowledge, no study has been done on the chemical constituents and antioxidant activity of hedychium malayanum essential oils. Antioxidant activity of essential oil of oregano species. The oil exhibited antioxidant activity and reduced dpph to 50% at ec 50 value of 0. Thus, the essential oil can partially replace chemical and synthetic agents with antioxidant and antimicrobial activity to avoid the toxicities and carcinogenic effects of chemical and synthetic agents 1214. The objective of this study was to evaluate the antioxidant activity of rosemary essential oil fractions obtained by molecular distillation md and investigate their effect on the oxidative stability of sunflower oil. The objectives of this study were to evaluate the antioxidant activity of essential oils of the aerial part of artemisia herba alba. Itisevidentbythedatathat the methanolic extract of valeriana jatamansi possesses good chelation activity % followed by aqueous extracts % and essential oil % at gml concentration. Previous investiga tions have described the strong antioxidant effects of oregano essential oil amorati et al. Essential oil and extracts 5 mg were added to a solution mixture of linoleic acid 0.
Chemical composition and antioxidant activity of ocimum. Antioxidant activity of the obtained oil was examined spectrophotometrically by dpph test after 20, 30, 45 and 60. The in vitro antioxidant and antimicrobial activities of. The safety of the synthetic antioxidants has been doubted.
At the same time a survey of the methods generally used for the evaluation of antioxidant activity and some of the mechanisms involved in the antiinflammatory activities of essential oils are also reported. Antioxidant activity of essential oils request pdf researchgate. Whereas reducing power and hydroxyl radical scavenging activity are dose. Study of the chemical composition, antioxidant activity. The essential oil was isolated by hydrodistillation using a clevenger modified apparatus, and the identification and quantification of constituents. Chemical composition of lavender essential oil and its. In our previous works,11 all phenolic type essential oils, containing thymol and carvacrol as major components, exhibited strong antioxidant. Antioxidant and hepatoprotective potential of essential. At the same time a survey of the methods generally. Pdf antioxidant activity of oregano essential oil origanum.
The main classes of compounds, namely monoterpene hydrocarbons, oxygenated monoterpenes, sesquiterpene hydrocarbons, oxygenated sesquiterpenes, benzene derivatives, and non isoprenoid components comprising alcohols, aldehydes, ketones, which are the most common constituents of essential oils, have been analysed. Antiaflatoxigenic and antioxidant activity of an essential oil from ageratum conyzoides l. Determination of antioxidant activity measure of the antioxidant activity by dpph free radical scavenging test 22 the antioxidant capacity of the essential oil of artemisia herba alba was tested by the method which uses the dpph like a relatively stable free radical. The antioxidant activity of the essential oils was determined by an accelerated oxidation test in canola oil. This study is planned to determine the antioxidant activity and total phenols content of the essential oil and different solvent extracts of the endemic plant merremia borneensis. Pdf chemical composition and antioxidant activity of the. Qualitative and quantitative composition of the oil was determined by gcms and gcfid spectrometry. This means that in addition to the major compounds, minor components may also contribute significantly to the activity of reo. Pdf study of antioxidant activity of essential oils. In continuation of our works on lamiaceae essential oils 3235, we report here the chemical composition, the antioxidant and antibacterial activities of the freshly hydrodistilled essential oil of mentha spicata, cultivated at the algerian sahara. In another study, the essential oils from five plants that are widely used in a mediterranean diet oregano, thyme, clove, sage, and rosemary were tested for their antioxidant properties.
Activity varies depending on the assay method, the source of oregano essential oil, and bacterial isolates tested. The essential oils of three wildgrowing thymus species, collected from west of iran during the flowering stage, were obtained by hydrodistillation and analyzed by gas chromatography gc and gas chromatographymass spectrometry gcms. Antioxidant and antifungal activity of coriander coriandrum. Chemical composition of the essential oil, antioxidant activity dpph and. Rsc was assessed measuring the scavenging activity of essential oil. Sep 20, 2016 the antioxidant activity was investigated, where different assays were used namely scavenging of the biphenyl picrylhydrazyl radical dpph and. Antimicrobial and antioxidant activities of melissa. The contribution of various compounds that are present in small. Litterature data on reported mentha spicata essential oils is given here. Antimicrobial and antioxidant activity and chemical. Pdf chemical composition of essential oils and in vitro. The antioxidant activity of essential oil, in fact, is also the result of the complex interplay among components and material to be protected from oxidation amorati, 20.
Under the optimum extraction and analysis conditions, 44, 38, and 38 constituents mainly monoterpenes compounds were identified in t. Antioxidant activity of essential oils extracted from. In this sense, the incorporation of essential oils eos, to improve the antimicrobial and antioxidant activity of. Addition of eos to edible products, either by direct mixing or in active. Pdf comprehensive assessment of antioxidant activity of. Assessment of in vitro antioxidant activity of essential.
Jul 28, 2000 the essential oil of black cumin seeds, nigella sativa l. A rapid evaluation for antioxidants, using two tlc screening methods, showed that. Chemical composition and antioxidant activity of shirazi. Antioxidant activity of nigella sativa essential oil. The present study was conducted to evaluate the chemical composition and antioxidant activity of the essential oils and ethanol extracts of ocimum basilicum l. Antioxidant activity of essential oils request pdf. Several studies have been conducted on the essential oils from other. Chemical composition, antioxidant activity and toxicity. The main constituents of at essential oil are neral 27. Pdf this study was designed to examine the in vitro antioxidant activities of the essential oil and the subfractions of methanol extract from leaves. Antioxidant activity and total phenolic content of. In recent years, adding essential oil to edible oils was increased due to. This antiinflammatory activity is associated with its antioxidant activity.
Both the essential oils and methanol extracts obtained from thymus species prevented the bleaching. The oregano species showed differences in their chemical composition, radical scavenging activity and antioxidant activity. Md fractions were prepared in a series of lowpressure stages where rosemary essential oil was the first feed. Linoleic acid emulsion was prepared with linoleic acid 0.
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