A total of seventy-four papers and abstracts were identified and reviewed for in vivo and in vitro methods related to antioxidant evaluation. The research results were mixed, but most did not find the hoped-for benefits. Plants have a large number of bioactive compounds with high antioxidant activity. Factors Influencing the Antioxidant Activity Determined by the ABTS + Radical Cation Assay Nicholas J. Miller International Antioxidant Research Centre, UMDS-Guy's Hospital, London, SE1 9RT, UK Catherine A. Rice-Evans International Antioxidant Research Centre, UMDS-Guy's Hospital, London, SE1 9RT, UK Antioxidant Activity Research Papers - Academia.edu Antioxidant Activity 8,501 Followers Recent papers in Antioxidant Activity Papers People Polyphenols and Antioxidant Activity of Calafate (Berberis microphylla) Fruits and Other Native Berries from Southern Chile Download by Dietrich von Baer 0 Views 19 Engineering, Chemistry, Chile, Flavonoids The antioxidant and antiradical scavenging properties of the selected oils were tested by means of 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Keywords:Essential oil, GC/MS, Antioxidant, IC50, zone of inhibition, MIC, MBC. Electrochemical methods based on cyclic, differential pulse, square wave voltammetry and coulometry allow direct and rapid screening of antioxidant activity. The minimum inhibitory concentration (MIC) was determined by microdilution in 96-well plates. Open Access Pub launches the Open Peer Reviewed Journal -"Journal of Antioxidant Activity ISSN NO: 2471-2140" The journal aims to cover the latest outstanding developments in the corresponding field. How to write methodology in research paper sample, time is money essay in simple english, legal debate essay. Medicinal plants are being used for the treatment of several ailments by the local tribes in Mizoram, North East India. It found mainly in North-east, West Bengal, Western UP and Deccan Peninsula.3 Different parts of the plant were used in the treatment of boils . Research paper about poverty in the philippines Should juveniles get the death . Contributions from the following research areas are invited but not limited to the following branches -. antioxidant activity of carrageenans has been determined by various methods such as reducing power, iron ion chelation, and total antioxidant activity using beta-carotene-linoleic acid system, 1,1-diphenyl-2-picrylhydrazyl radical scavenging, lipid peroxide inhibition, ferric reducing antioxidant power, nitric oxide scavenging, abts radical Any substance a t low concentrations compared to that of an oxidizable substrate that significantly delays or prevents ox idation of that substrate is called. Sample output of a research paper. Abstract Tannic acid, a naturally occurring plant polyphenol, is composed of a central glucose molecule derivatized at its hydroxyl groups with one or more galloyl residues. Evaluation of Antioxidant Activity of Pomegranate Peels Phytosome. Research Paper Antioxidant activity of mesenchymal stem cell-derived extracellular vesicles restores hippocampal neurons following seizure damage Qiang Luo1*, Panpan Xian1*, Tian Wang1*, Shengxi Wu2, Tangna Sun2, Wenting Wang2, Bo Wang1, Hao Yang 1, Yanping Yang , Han Wang3, Weiping Liu3, Qianfa Long1,4 1. In this paper, density functional calculations are carried out to study the antioxidant activity of viniferifuran systematically. Meyna laxiflora Robyns. With respect to metal-chelating capacity, the CR wine was the strongest amongst all the wine samples tested, followed by JZ 1#. A 5 g of each plant sample was macerated using 100 ml of ethanol and was allowed to shake for 4 hours, then left for 72 hours. This paper analyses the phytochemical composition, and antioxidant activity of new selected biotypes of cherry silverberry grown in Poland. peels of Citrus paradisiihave potent antioxidant role and also have a broad spectrum antibacterial activity against human pathogens. The content of these compounds was determined by HPLC-DAD analysis in twelve samples of coffee from Robusta and Arabica types of different geographical origin including steamed and decaffeinated coffees. H. Y. Aboul-Enein, Pharmaceutical and Medicinal Chemistry Department, Pharmacetical and Drug Industries Research Division, National Research Centre, Dokki, Cairo 12311, Egypt. Most of the studied salad plants have potent cytotoxicity activity. 3.4: The hydrogen peroxide antioxidant activity of the methanol extract of Borassus aethiopum fruit was found to be dose-dependent.Significantly higher (p0.05) antioxidant power was observed at 100 mg/ml while the least antioxidant power was observed at the lowest concentration (20 mg/ml) of both the plant extract and ascorbic acid.The hydrogen peroxide antioxidant power of the methanol . The chemical composition was determined usinggas chromatography mass spectrometry (GC/MS)analysis. My plans in life essay. The activity of the source was 8.5 KGy/hr and the energy 1.33 MeV. Hence, the extract from this medicinal plant could be a great candidate for anti-skin-aging agent. Recent research indicates that antioxidant may even positively influence life span. Spices also have free radical scavenging activity because of their rich content of antioxidants and phytonutrients. The GC-MS study also carried out and it showed the presence of phytochemicals like 4H-Pyran-4-one, 2,3 . Journal of Antioxidant Activity ISSN NO: 2471-2140 is an open access peer reviewed journal with a broad range of topics of general interest. Chlorogenic acids and caffeine are important for flavor formation as well as the health effect of green coffee brews and its extracts. These plants dosedependently increased DPPH free radical scavenging activity. Sign In Create Free Account. Coconut's milk exhibited the highest Generally, Robusta coffee extracts contain twice as . The addition of reducing agent dithiothreitol could significantly enhance the activity of MaLamNA. Antioxidant assays showed that APIII had the strongest antioxidant activity of DPPH radical scavenging rate (90.96% 10.23%), ABTS radical inhibition rate (89.78% 6.54%) and the strongest reducing power (8.30 0.71 mol Trolox equivalents kg 1 dry apple pomace). The phytochemical analysis of Fissidens grandiflora confirmed the presence of flavanoids, phenolics, steroids and tannins.Additionally, Fissidens grandiflora contained a high amount of total flavonoids of 101.400.38 mg Q/g. Results This study reports potential probiotic properties of a strain of S. cerevisiae IFST 062013 isolated . g/mL), whereas chloroform extract showed negligible activity. Search. Search 205,238,597 papers from all fields of science. The broth-microdilution method was used to test antimicrobial activity. All these results suggested that viniferifuran is a stronger antioxidant than resveratrol. Introduction. Journal of Antioxidant Activity. The present study aims to evaluate the antioxidant activity of Salacia chinensis specimen stem extract collected from five different locations. View Antioxidant Activity Research Papers on Academia.edu for free. The . These characteristics of MaLamNA provide clues to its industrial application for laminarin bioresource development.
Abstract. Callus was induced from hypocotyls and cotyledons explants in MS medium supplemented with combination of 2 mg/l of . 1997). Antioxidant activity was evaluated by DPPH method and the leaves of V. negundo showed 23.21 mg/100 of Ascorbic acid Equivalent Antioxidant Capacity (AEAC). Whereas Superoxide dismutase . DOI: 10.1016/J.INDCROP.2013.11.027; Corpus ID: 94249617; Antioxidant . In vitro methods Antioxidant activity should not be concluded based on a single antioxidant test model. The antioxidant properties of mulberry leaf extracts were investigated by Arabshahi-Delouee and Urooj  by various experimental methods including the iron (III) reducing capacity, the total antioxidant capacity, the DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity and an in vitro inhibition of ferrous sulphate-induced oxidation of lipids. Most research teams reported that vitamin E and other antioxidant supplements didn't protect against heart disease or cancer.
The lowest antioxidant activity was obtained for hexane flesh extract. In addition, the polyphenolic contents, sugars, and vitamin C, as well as organic acid profile were evaluated. The qualitative and quantitative antioxidant tests were performed using the DPPH method (2.2 diphenyl-1-picryl hydrazil) and ferric reducing antioxidant power (FRAP). Among the different extracts studied, the chloroform leaf extract has high catalase activity. The results found that the 23 fruit vinegars varied in ferric-reducing antioxidant power (FRAP, .15–23.52 . The scavenging effect of spices and ascorbic acid at 100 l/ml concentration were 98% and 63% respectively. Antioxidant activity of the extracts were measured by DPPH assay using ascorbic acid as standard free radical scavenger. We also support the dynamic scope to keep in pace with the current trend.We publish the finest peer-reviewed research papers to ensure its quality and timeliness. One hundred microliters of opportunely diluted sample extract were added to 2,900 L of the FRAP reagent obtained by mixing acetate buffer (300 mM, pH 3.6), TPTZ (2,4,6-tripyridyl-s-triazine) 10 mM solubilized in HCl 40 mM and FeCl 3 20 mM in the ratio 10:1:1. Full Length Research Paper Screening of antioxidant activity, total phenolics and GC-MS study of Vitex negundo P. Praveen Kumar1*, S . Results of the study showed that coconut milk samples exhibited a significantly different (P<0.05) antioxidant activity in comparison of goat and cow's milk for all the assays except DPPH. Callus culture offers a powerful platform . The paper deals with the investigation of the chemical composition, antimicrobial and antioxidant activity of four commercial products ofMelaleuca alternifoliaessential (TTO). Academia.edu is a platform for academics to share research papers. Antioxidant activity of basil . The highest percentage antioxidant activity due to volatile oil was of cinnamon with 69.27%. With the focus to find alternatives for synthetic food ingredients, natural substances having antioxidative, anticarcinogenic, antimicrobial properties need to be further . Background Probiotic yeast has become a field of interest to scientists in recent years. Abstract and Figures Antioxidants or inhibitors of oxidation are compounds which retard or prevent the oxidation and in general prolong the life of the oxidizable matter. which belongs to family Rubiaceae commonly known as muduna (Hindi, Bengali) and heibi (Manipuri) is a small tree or a spinescent. The extracts were filtered using Whatman no. NIFA, Peshawar.
The values of pH, ash and moisture content were 7.4, 4.16 % and 4.57 % respectively. The . Moreover, it showed high anticancer activity by growth inhibition in the . investigations demonstrated that extracts from C. asiatica have a broad range of beneficial activities through their antioxidant activity. Despite the growing popularity of cold brew coffee, very little research has been published on its chemical attributes, including pH and total antioxidant activity, and associated health effects. Furthermore, the lowest (i.e., 44.70 g/ml) as well as the highest (2359.66 g/ml) IC50 values were obtained for aqueous seed . In the present investigation focused on qualitative, quantitative phytochemical and in vitro antioxidant activity of Cadaba fruticosa and Capparis spinosa leaves belonging to the family Capparidaceae. All extracts exhibited higher antioxidant activity coefficient (AAC) than that of ascorbic acid, furthermore, dichloromethane and petroleum extracts had comparable AAC with BHA by the beta-carotene bleaching assay. The percentage of superoxide ion . Antioxidant activity by reaction with ABTS radical The antioxidant activity of the extracts was assessed by assay with the radical ABTS, which is based on the ability of antioxidants to reduce the radical and decrease its absorbance at 734 nm (Re et al., 1999).
The antioxidant activity depends on the type and polarity of the extracting solvent, the isolation procedures, purity of active compounds, as well as the test system and substrate to be protected by the antioxidant . Table No. All examined oils exhibited a free radical scavenging activity, ranging 20-70% of DPPH inhibition. Among the researched compounds, two sugars, seven organic acids, and six fatty acids were reported in new studied biotypes of cherry silverberry . International Journal of Research and Development in Pharmacy and Life Sciences Available online at http//www.ijrdpl.com February - March, 2013, Vol. The irradiation time varied from 1 to 3 hours depending on the dose applied. 3 : Authors can download their full papers at any time with digital certificate. Result of Hydrogen peroxide scavenging antioxidant activity of Ixora coccinea plant extract Concentration (g/ml) A 5 g of each plant sample was macerated using 100 ml of ethanol and was allowed to shake for 4 hours, then left for 72 hours. Methods Conventional cultural method was employed to isolate and identify yeast and standard methods were used to determine different probiotic attributes, antimicrobial and antioxidant properties. Abstract: The research aimed to study antioxidant activity, total phenolic, flavonoid and tannin contents of methanolic extracts of callus and seeds and petroleum ether extract of seeds of fenugreek (Traigonella foenum-graecum). The irradiation time varied from 1 to 3 hours depending on the dose applied. The radical scavenging ability of viniferifuran was discussed in detail, thermodynamically and kinetically. Antioxidant activity and antimicrobial property of some Indian spices International Journal of Scientific and Research Publications, Volume 3, Issue 3, March 2013 1 ISSN 2250-3153 www.ijsrp.org Antioxidant activity and antimicrobial property of some Indian spices Oyas Ahmed Asimi*, N. P. Sahu**, A.K. Carbohydrate, protein and fat contents were 4.86 %, 24.18 % and 49.75 % respectively. The antioxidant activity of each spice was determined in terms of antioxidant activities due to volatile oil and non-volatile components of spice by DPPH radical scavenging activity method. In the study of . 5. Semantic Scholar extracted view of "Antioxidant activity and phenolic compounds in 10 selected herbs from Vrujci Spa, Serbia" by A. Zugic et al. The Editors reserve the right to reject papers without . Fruit vinegars are popular condiments worldwide. The extracts were filtered using Whatman no. 65 Highly Influential PDF View 5 excerpts, references methods, results and background Antioxidant means "against oxidation". The hydrolytic products of laminarin by MaLamNA exhibited more effective antioxidant activities than the undigested laminarin. The antioxidant activities were determined by in vitro assays to compare their antioxidant effects. The phytochemical composition, antioxidant and antidiabetic profile of ethanol extract of Fissidens grandiflora was investigated for the first time. Mini-invasive Neurosurgery and . The present study was focused to analyze the antibacterial and antioxidant activities of a widely used traditional medicinal plant, Blumea lanceolaria. Juliani and J.E. Pal*** Total phenolic and flavonoid contents were also determined. Simon* INTRODUCTION The commercial development of plants as sources of antioxidants to enhance health and food preserva- tion is of current interest (Rice-Evans et al.  One study even showed that taking beta-carotene supplements actually increased the chances of developing lung cancer in smokers. ORIGINAL RESEARCH PAPER PHYSICO-CHEMICAL CHARACTERISTICS AND ANTIOXIDANT ACTIVITY OF GOJI FRUITS JAM AND JELLY DURING STORAGE DANIELA ISTRATI*, CAMELIA VIZIREANU, GABRIELA IORDACHESCU, FELICIA DIMA, MARIA GARNAI Dunarea de Jos University of Galati, Faculty of Food Science and Engineering, 111 Domneasca Street, 800201 Galati, Romania *Corresponding author: email@example.com Received on . Shital Pande | Ashwin Deshmukh . used for absorbance and % inhibition was calculated by using its formula. This study aimed to test the antioxidant activities, phenolic profiles, and organic acid contents of 23 fruit vinegars. Hydrogen peroxide Scavenging antioxidant activity of ethanolic leaf, stem and flower extract as shown in table no. They are a kind of biological macromolecules with immune regulation, anti-tumor, anti-radiation, anti-inflammation, anti-fatigue and anti-aging effects. years research in natural antioxidant, especially of plant origin has increased tremendously. Total phenol content was found to be high in the ethanolic extract of leaf (33.91 mg GAE/g DW) in comparison to root and . Whey proteins are known for their high nutritional value and bioactivity, notably great potential is found on -lactalbumin.The objective of this study was to evaluate antioxidant, antiglycant and ACE (angiotensin converting enzyme)-inhibitory activity of -lactalbumin peptides obtained from enzymatic hydrolysis with Alcalase through different hydrolysis conditions. In- vitro antidiabetic activity of aqueous stem extracts of Salacia chinensis of Karikan accession on -amylase and -glucosidase enzymes was studied. in view of the growing interest in using bioactive substances from natural sources to promote health and reduce the risk of developing certain illnesses, this review aims to update the current state of knowledge on the antioxidant capacity of bee products such as honey, pollen, propolis, beeswax, royal jelly and bee venom, and on the analytical Institutional case study on disaster response activity on of Research paper antioxidant peels apple. In this study, the antioxidant activity of nine natural diterpenes was evaluated using kinetic and thermodynamic calculations. The highest antioxidant activity was observed for aqueous seed extract followed by the ethanolic seed, ethanolic flesh, and aqueous flesh extracts. A significance analysis demonstrated that the antioxidant capacity (as measured by the ABTS scavenging capacity and cupric ion reducing antioxidant capacity) of CR wine was significantly higher than that of the control and spine grape wines. 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. Antioxidants and organic acids are two important components of the flavors and health benefits of fruit vinegars. All antioxidant activity values were highly correlated with anthocyanin content in blackberry (0.93 r 0.99, P = 0.05). Point-counterpoint essay format, case study for doctors antioxidant peels paper Research activity apple of on: living in hill country essay cima management case study results date big history essayMy favorite teacher essay in marathi what are the examples of a research paper. The Antioxidant Activities of Natural Polysaccharides Abstract Background: The natural polysaccharides contain plant polysaccharides, animal polysaccharides and microbial polysaccharides. Gingerol related compounds substituted with an alkyl group bearing 10-, 12- or 14-carbon chain length were isolated from the dichloromethane extract of rhizomes using repeated chromatographic techniques. Despite their internalization in bEnd.3 cells, coated CNPs are devoid of cytotoxicity. Research Paper | Pharmaceutical Science | India | Volume 8 Issue 5, May 2019.
The antioxidant activities of these compounds were evaluated by the following measurements; 1) 1,1 . The stem extracts of Salacia chinensis (Hubili . BHT was taken as reference antioxidant (IC 50 . Peroxidase and Polyphenol activity was more in ethanol leaf extracts. In this study, structure-activity relationship of gingerol related compounds was evaluated. Afterwards, the ABTS radical 6 Research Unit for Natural Product Biotechnology, Faculty of Pharmaceutical Sciences, Chulalongkorn University . Semantic Scholar's Logo. 2 : Paper will publish immediately in current issue after registration. showed poor radical scavenging activity (IC 50 values . On the other hand, high correlation between total flavonoid content and antioxidant activity was recorded in water extract of blackberry (0.91 r 0.93, P = 0.05). Majority of the. The activity of the source was 8.5 KGy/hr and the energy 1.33 MeV. The total phenolics level was highly correlated with the free radical scavenging activity. It was found that the sequential proton loss electron transfer (SPLET) mechanism is favored in polar environments, whereas formal hydrogen transfer (FHT) is the main pathway for the radical scavenging of these diterpenes in the gas phase as well as in lipid media. 2, 3 and 4 resp. E-mail: firstname.lastname@example.org Search for more papers by this author The antioxidant . All CNPs reduces glutamate . Their main advantages are sensitivity, rapidity, simplicity and the capacity to directly measure the number of electrons transferred by an antioxidant offer advantage over conventional spectrophotometric assays. Results: Shaken martinis were more effective in deactivating hydrogen peroxide than the stirred variety, and both were more effective than gin or vermouth alone (0.072% of peroxide control for shaken martini, 0.157% for stirred v 58.3% for gin and 1.90% for vermouth). In this research paper, the almond seeds were determined the physicochemical properties, mineral content, nutritional values and antioxidant activity.
physicochemical properties and antioxidant activity based on TPC, FRAP, ORAC and DPPH of Malaysian coconut milk. Antioxidant Activity of Basil H.R. The activity of carnosine, a dipeptide, which is a useful antioxidant in food systems, has been carefully examined with large differences in the results in model systems. This review aims to . g/mL). My favourite teacher essay grade 2 short essay on the topic education. The DPPH radical scavenging assay exhibited higher antioxidant activity IC50 (9.41 0.54 mg/mL) in the ethanol extract. Abstract. NIFA, Peshawar. Microscopy studies report an intracellular localization of CNPs, more precisely in endosomes. In our daily practice we see that fruits, flowers, leaves, stems, barks and roots of nearly all the plants have some This indicates that CR and . These include inhibition of DPPH (1,1-diphenyl-2-picrylhydrazyl), Trolox equivalent antioxidant capacity (TEAC) using ABTS (2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid) as an oxidant and FRAP (Ferric reducing antioxidant power). 1 filter . The Feature Paper can be either an original research article, a substantial novel research study that often involves several techniques or approaches, or a comprehensive review paper with concise and precise updates on the latest progress in the field that systematically reviews the most exciting advances in scientific literature. The present paper is a critical presentation of the most important tests used to determine the antioxidant activity, detection mechanism, applicability, advantages and disadvantages of these methods. A linear correlation has been obtained by comparing the antioxidant activity and polyphenols and avonoid content of the extracts. Abstract: Phytosomes are novel phytophospholipid carriers for herbal drug delivery as standardized extracts which are shows, poor bioavailability and limited clinical . In the present paper, we examines the in vitro radical scavenging and antioxidant capacity of tannic acid by using different in vitro analytical methodologies such as 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH . The reason for this is not clear, but it may well not involve the facile . International Journal of Multidisciplinary Research and Analysis is better then other journals because:- 1 : IJMRA only accepts original and high quality research and technical papers. Among the extracts, TSB showed the highest antioxidant activity followed by TRB, TF and TL. Based on DPPH and hydroxyl radical scavenging activity, the TSB extract was the most effective one with IC 50 37.75 and 58.90 g/mL, followed by TRB, TF and TL with IC 50 40.20 and 102.03; 175.01 and 114.63 and 220.23 and 234.63 g/mL, respectively. These results are of great significance in better understanding the . It also indicated that procyanidin B2, chlorogenic acid, ()-epicatechin and quercetin had stronger antioxidant capacity .
ABTS is dissolved in water to 7 mM concentration. The absorbance change was followed at 593 nm for 6 min. RESEARCH PAPER 14 Antioxidant Activity of Ficusp seudopalma Blanco and its Cytotoxic Effect on Hepatocellular Carcinoma and Peripheral Blood Mononuclear Cells Paolo Robert P. Bueno 1, Clarissa Bel M. Buno 1, Deza Lyn M. Santos 1 and Librado A. Santiago* 1,2,3 1 Department of Biochemistry, Faculty of Pharmacy, University of Santo Tomas, Manila, Philippines 2 Research Center for the Natural and .