نتایج جستجو برای: ferric reducing antioxidant power assay

تعداد نتایج: 1018455  

2015
Ehsan Oskoueian Norhani Abdullah Idrus Zulkifli Mahdi Ebrahimi Ehsan Karimi Yong Meng Goh Armin Oskoueian Majid Shakeri

BACKGROUND Palm kernel cake (PKC), a by-product of the palm oil industry is abundantly available in many tropical and subtropical countries. The product is known to contain high levels of phenolic compounds that may impede the deleterious effects of fungal mycotoxins. This study focused on the evaluation of PKC phenolics as a potential cytoprotective agent towards aflatoxin B1 (AFB1)-induced ce...

Journal: :Journal of agricultural and food chemistry 2009
Stéphanie Dudonné Xavier Vitrac Philippe Coutière Marion Woillez Jean-Michel Mérillon

Aqueous extracts of 30 plants were investigated for their antioxidant properties using DPPH and ABTS radical scavenging capacity assay, oxygen radical absorbance capacity (ORAC) assay, superoxide dismutase (SOD) assay, and ferric reducing antioxidant potential (FRAP) assay. Total phenolic content was also determined by the Folin-Ciocalteu method. Antioxidant properties and total phenolic conten...

Journal: :Asian Pacific journal of health sciences 2022

Aim: The present study aims at screening the phytochemical components and evaluates antioxidant, anti-bacterial, anti-inflammatory activity of fruit Piper schmidtii, an endemic plant species from Nilgiris, Tamil Nadu. Materials Method: different polar solvents such as petroleum ether, chloroform, ethyl acetate, methanol, water were used extraction was carried out using soxhlet apparatus. extrac...

Journal: :avicenna journal of phytomedicine 0
mansureh kamali department of chemical engineering, quchan azad university, quchan, iran susan khosroyar department of chemical engineering, quchan azad university, quchan, iran hossein kamali natural products & medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran tooba ahmadzadeh sani school of pharmacy, mashhad university of medical sciences, mashhad, iran ameneh mohammadi natural products & medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran

objective: dracocephalum kotschyi (lamiaceae family) has been usedin traditional medicine for stomach and liver disorders, headache and congestion. in the present study, we have investigated phytochemical properties and antioxidant activities of dichloromethane, ethyl acetate and methanol extracts of d.kotschyi. material and methods: antioxidant activities of extracts were evaluated using the i...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
ar gohari h hajimehdipoor s saeidnia medicinal plants research center, tehran university of medical sciences, p.o.box: 14155-6451, tehran, iran tel: +98-21- 6695900, fax: +98-21-64122330 y ajani a hadjiakhoondi

background: medicinal plants (especially belong to lamiaceae family) are potential sources of new drugs to improve the treatment of diseases whose treatment is associated to anti-oxidative agents. in this paper, the ferric reducing ability of plasma (frap) activity of some lamiaceae and apiaceae species, has been evaluated. methods: aerial parts of the plants were dried, cut into small pieces a...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2009
Hari Datta Bhattarai Babita Paudel Hong Kum Lee Hyuncheol Oh Joung Han Yim

Antioxidant agents against reactive oxygen species can be used for several cosmetic and medicinal applications. This study's objective was to evaluate the antioxidant activities of Polytrichastrum alpinum (Hedw.) G. L. Sm. (Polytrichaceae), an Antarctic moss species collected from King George Island (Antarctica). The identification of the moss species was performed on the basis of morphological...

Journal: :Molecules 2010
Shu-Dong Wei Hai-Chao Zhou Yi-Ming Lin Meng-Meng Liao Wei-Ming Chai

The structures of the condensed tannins from leaf, stem bark and root bark of Acacia confusa were characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis, and their antioxidant activities were measured using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging and ferric reducing/antioxidant power (FRAP) assays. The results s...

Journal: :Food chemistry 2013
Ibrahim Demirtas Ramazan Erenler Mahfuz Elmastas Ahmet Goktasoglu

The aim of this work was to examine the chemical constituents and antioxidant potential of water-soluble fractions from the commonly consumed vegetable, Allium vineale. The water-soluble fraction, containing phenolic compounds, was extracted with ethyl acetate to obtain flavonoids which were separated and purified by repeated column chromatography over Sephadex LH-20, RP C18 and silica gel. The...

Mirzaei, Ali, Mirzaei, Mahsa, Mirzaei, Noshin, Mohammadi, Jamshid,

Background & Objectives: Free radicals are highly reactive molecules may cause great damage to cell membranes and DNA and Result in inducing oxidation DNA mutations leading to cancer, degenerative, and other diseases. Plant antioxidant derived may be preventive of free radical damages. Methods & Materials: The Stems and flower sample of plants air-dried, finely ground and were extracted by etha...

2018
Romana Parveen Tooba Naz Shamsi Gurjeet Singh Teeba Athar Sadaf Fatima

Triphala, an Indian ayurvedic triherbal formulation, is an equiproportional mixture of fruits of three herbs, amalaki (Emblica officinalis), haritaki (Terminalia chebula) and bibhitaki (Terminalia bellerica). The present study focused on phytocompounds detection and comparative analysis of various biochemical activities in the aqueous and methanolic extracts of triphala and its constituting her...

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