estimation of antioxidant activity in natural rubber(h

estimation of antioxidant activity in natural rubber (h

Estimation of antioxidant activity in natural rubber (H

Estimation of antioxidant activity in natural rubber (H.brasiliensis) using TPC, FRAP, CUPRAC, ABTS, DPPH, ORAC assays, individual phenolic and individual flavonoid quantity Suwimon Siriwong a,b* , Adisai Rungvichaniwat b , Pairote Klinpituksa b , Khalid Hamid Musa c and Amina Abdullah c

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estimation of antioxidant, antimicrobial activity

Estimation of antioxidant, antimicrobial activity

Estimation of antioxidant, antimicrobial activity and brine shrimp toxicity of plants collected from Oymyakon region of the Republic of Sakha (Yakutia), Russia. The obtained result was analyzed and compared with commercial standards. A total of 28 species of higher plants showed very strong antioxidant activity (DPPH IC50, 0.45-5.0 μg/mL),...

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method for the measurement of antioxidant activity

Method for the measurement of antioxidant activity

Aim —To develop a new, simple, and cheap method for estimating antioxidant activity in human fluids. Methods —The assay measured the capacity of the biological fluids to inhibit the production of thiobarbituric acid reactive substances (TBARS) from sodium benzoate under the influence of the free oxygen radicals derived from Fenton's reaction.

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h estimation of antioxidant activity and total phenol

h Estimation of Antioxidant Activity and Total Phenol

h www.ijper.org Estimation of Antioxidant Activity and Total Phenol, Flavonoid Content among Natural Populations of Caper (Capparis moonii, Wight) from Western Ghats Region Pallavi Yadav 1 and Nutan Malpathak2* 1, 2Department of Botany, Savitribai Phule Pune University, Ganeshkhind Road, Pune, INDIA. ABSTRACT

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mechanisms of antioxidant action: activity of sulphur

Mechanisms of antioxidant action: Activity of sulphur

Polymer Degradation and Stability 4 (1982) 279-285 MECHANISMS OF ANTIOXIDANT ACTION: ACTIVITY OF SULPHUR-LINKED BOUND ANTIOXIDANTS IN NATURAL RUBBER G. SCOTT & S. M. TAVAKOLI Department of Chemistry, University of Aston in Birmingham, Gosta Green, Birmingham B4 7ET, Great Britain (Received: 25 January, 1981) ABSTRACT A number of phenolic antioxidants containing a sulphide linkage have been ...

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antioxidant potential of peel extracts of banana varieties

Antioxidant Potential of Peel Extracts of Banana Varieties

3.1. Total Antioxidant Activity . The total antioxidant activities of various banana peel extracts are depicted in . Table 1. The values represent the total antioxidant capacity of banana peel extracts ex-pressed in terms of equivalents of ascorbic acid. This assay gives an estimate of the overall antioxidant poten-tial of the banana peel [16].

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quantitative analysis of total phenolic contents

Quantitative Analysis of Total Phenolic Contents

Quantitative Analysis of Total Phenolic Contents and Antioxidant Activity of Fresh Field Natural Rubber Latex Article in Macromolecular Symposia 354(1):265–272 · August 2015 with 183 Reads

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estimation of scavenging activity of phenolic compounds

Estimation of Scavenging Activity of Phenolic Compounds

Observations on the applicability of the ABTS•+ assay to define structure−activity relationships (SARs) among phenols (AH) were based on experimental data and theoretical calculations. All AH examined (hydroxycinnamic derivatives, simple polyphenols, polyhydroxybenzoates, and flavonoids) were found to be active toward ABTS•+. Moreover, known weak radical scavengers (i.e., coumaric and ...

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antioxidant activity of p-phenylenediamines studied by dsc

Antioxidant activity of p-phenylenediamines studied by DSC

The antioxidant activity of six N,N′-substituted p-phenylenediamines in polyisoprene rubber matrix has been studied by differential scanning calorimetry (DSC) under non-isothermal conditions.A method for obtaining the parameters from non-isothermal DSC measurements, based on the dependence of the onset temperature of the oxidation peak on heating rate, is presented.

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antioxidant activity and free radical scavenging capacity

Antioxidant activity and free radical scavenging capacity

In the present study, antioxidant activities of the phenolic extracts from H. isora fruits and C. pentandra seeds were investigated by employing established in vitro systems, which included reducing power, OH , DPPH , ABTS +, linoleic acid emulsion, metal chelation and antihemolytic activity.The extracts of C. pentandra contained relatively higher levels of total phenolics and flavonoids than ...

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