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. On the . Meyna laxiflora Robyns. [3] One study even showed that taking beta-carotene supplements actually increased the chances of developing lung cancer in smokers. Epidemiological studies have suggested positive associa- tions . E-mail: haboulenein@yahoo.com Search for more papers by this author In addition, the polyphenolic contents, sugars, and vitamin C, as well as organic acid profile were evaluated. There is a large variety of in vitro methods to quantify antioxidant activity, and it is important to select the proper method to . 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 . In- vitro antidiabetic activity of aqueous stem extracts of Salacia chinensis of Karikan accession on -amylase and -glucosidase enzymes was studied. The qualitative and quantitative antioxidant tests were performed using the DPPH method (2.2 diphenyl-1-picryl hydrazil) and ferric reducing antioxidant power (FRAP). The total phenolics level was highly correlated with the free radical scavenging activity. This paper analyses the phytochemical composition, and antioxidant activity of new selected biotypes of cherry silverberry grown in Poland. investigations demonstrated that extracts from C. asiatica have a broad range of beneficial activities through their antioxidant activity. 1 filter . Most research teams reported that vitamin E and other antioxidant supplements didn't protect against heart disease or cancer. 2, No.2, pp 321-329 ISSN: 2278-0238 Research Article ANTIOXIDANT AND HEPATOPROTECTIVE ACTIVITY OF AN ETHANOL EXTRACT OF PIPER CUBEBA FRUITS Amol P. Pachpute1*, Tushar A. Deshmukh2 1. 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. In our daily practice we see that fruits, flowers, leaves, stems, barks and roots of nearly all the plants have some NIFA, Peshawar. 1997). The extracts were filtered using Whatman no. 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. peels of Citrus paradisiihave potent antioxidant role and also have a broad spectrum antibacterial activity against human pathogens. 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. 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 extracts were filtered using Whatman no. 2 : Paper will publish immediately in current issue after registration. These results are of great significance in better understanding the . The DPPH radical scavenging assay exhibited higher antioxidant activity IC50 (9.41 0.54 mg/mL) in the ethanol extract. 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 The stem extracts of Salacia chinensis (Hubili . This study aimed to test the antioxidant activities, phenolic profiles, and organic acid contents of 23 fruit vinegars. The activity of the source was 8.5 KGy/hr and the energy 1.33 MeV. 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. In vitro methods Antioxidant activity should not be concluded based on a single antioxidant test model. 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 this paper, density functional calculations are carried out to study the antioxidant activity of viniferifuran systematically. 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). 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 minimum inhibitory concentration (MIC) was determined by microdilution in 96-well plates. The results found that the 23 fruit vinegars varied in ferric-reducing antioxidant power (FRAP, .15–23.52 . 2nd paragraph of an essay. This type of . Lemon oil showed the most antioxidant capacity, with DPPH inhibition rate of 70%. The irradiation time varied from 1 to 3 hours depending on the dose applied. ABTS is dissolved in water to 7 mM concentration. View Antioxidant Activity Research Papers on Academia.edu for free. The highest percentage antioxidant activity due to volatile oil was of cinnamon with 69.27%. 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. 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: daniela.istrati@ugal.ro Received on . 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 [22]. 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. It also indicated that procyanidin B2, chlorogenic acid, ()-epicatechin and quercetin had stronger antioxidant capacity . The antioxidant activities of these compounds were evaluated by the following measurements; 1) 1,1 . Juliani and J.E. Contributions from the following research areas are invited but not limited to the following branches -. 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). 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. Semantic Scholar's Logo. 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. The hydrolytic products of laminarin by MaLamNA exhibited more effective antioxidant activities than the undigested laminarin. The irradiation time varied from 1 to 3 hours depending on the dose applied. The reason for this is not clear, but it may well not involve the facile . The activity of the source was 8.5 KGy/hr and the energy 1.33 MeV. 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 . 2, 3 and 4 resp. used for absorbance and % inhibition was calculated by using its formula. Among the different extracts studied, the chloroform leaf extract has high catalase activity. Background Probiotic yeast has become a field of interest to scientists in recent years. The scavenging effect of spices and ascorbic acid at 100 l/ml concentration were 98% and 63% respectively. Moreover, it showed high anticancer activity by growth inhibition in the . Hence, the extract from this medicinal plant could be a great candidate for anti-skin-aging agent. To study the toxicity and the antioxidant properties of CNPs for stroke and particularly endothelial damages, in vitro studies are conducted on a cerebral endothelial cell line (bEnd.3). Results This study reports potential probiotic properties of a strain of S. cerevisiae IFST 062013 isolated . 1 filter . Antioxidants and organic acids are two important components of the flavors and health benefits of fruit vinegars. The antioxidant properties of mulberry leaf extracts were investigated by Arabshahi-Delouee and Urooj [14] 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. Journal of Antioxidant Activity. 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. In this study, the antioxidant activity of nine natural diterpenes was evaluated using kinetic and thermodynamic calculations. 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 lowest antioxidant activity was obtained for hexane flesh extract. The GC-MS study also carried out and it showed the presence of phytochemicals like 4H-Pyran-4-one, 2,3 . In this research paper, the almond seeds were determined the physicochemical properties, mineral content, nutritional values and antioxidant activity. Academia.edu is a platform for academics to share research papers. Sign In Create Free Account. The absorbance change was followed at 593 nm for 6 min. Journal of Antioxidant Activity ISSN NO: 2471-2140 is an open access peer reviewed journal with a broad range of topics of general interest. DOI: 10.1016/J.INDCROP.2013.11.027; Corpus ID: 94249617; Antioxidant . Research suggests that free radicals have a significant influence on aging, that free radical damage can be controlled with adequate antioxidant defense, and that optimal intake of antioxidant nutrient may contribute to enhanced quality of life. Keywords:Essential oil, GC/MS, Antioxidant, IC50, zone of inhibition, MIC, MBC. 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. Electrochemical methods based on cyclic, differential pulse, square wave voltammetry and coulometry allow direct and rapid screening of antioxidant activity. Antioxidant means "against oxidation". 65 Highly Influential PDF View 5 excerpts, references methods, results and background Studies for the determination of the antioxidant activity of different plant species could contribute to revealing the value of these species as a source of new antioxidant compounds. Abstract: Phytosomes are novel phytophospholipid carriers for herbal drug delivery as standardized extracts which are shows, poor bioavailability and limited clinical . Abstract. 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). All these results suggested that viniferifuran is a stronger antioxidant than resveratrol. Skip to search form Skip to main content Skip to account menu. A linear correlation has been obtained by comparing the antioxidant activity and polyphenols and avonoid content of the extracts. Introduction. Solvents used for extraction purpose are also reviewed from the downloaded scientific records. Pal*** Most of the studied salad plants have potent cytotoxicity activity. Table No. Despite their internalization in bEnd.3 cells, coated CNPs are devoid of cytotoxicity. Among the researched compounds, two sugars, seven organic acids, and six fatty acids were reported in new studied biotypes of cherry silverberry . 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. 3. years research in natural antioxidant, especially of plant origin has increased tremendously. Mini-invasive Neurosurgery and . The chemical composition was determined usinggas chromatography mass spectrometry (GC/MS)analysis. Antioxidant Activity of Basil H.R. 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). The phytochemical composition, antioxidant and antidiabetic profile of ethanol extract of Fissidens grandiflora was investigated for the first time. 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 Majority of the. g/mL). 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.