Journal ArticleDOI
Evaluation of scavenging activity assessed by Co(II)/EDTA-induced luminol chemiluminescence and DPPH* (2,2-diphenyl-1-picrylhydrazyl) free radical assay.
TLDR
The scavenging activities of three standard antioxidants were evaluated and showed that the three standards were efficient and effective in inhibiting both Co(II)/EDTA-induced luminol chemiluminescence and the free radical DPPH*.About:
This article is published in Journal of Pharmacological and Toxicological Methods.The article was published on 2000-11-01. It has received 198 citations till now. The article focuses on the topics: Luminol & Chemiluminescence.read more
Citations
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Review of methods to determine chain-breaking antioxidant activity in food
Vitaly A. Roginsky,Eduardo Lissi +1 more
TL;DR: The most popular methods for determining chain-breaking antioxidant activity (AOA) of food are considered with the aim to estimate their reliability and limitations in this paper, where the main requirements imposed on these methods have been suggested.
Journal ArticleDOI
Tea and herbal infusions: Their antioxidant activity and phenolic profile
TL;DR: In this article, the total phenolics recovered by ethyl acetate from the water extract, were determined by the Folin-Ciocalteu procedure and ranged from 881-±-042 (Greek mountain tea) to 1216 −±-320 mg (Chinese green tea) GAE (Gallic acid equivalents)/cup The antioxidant activity was evaluated by two methods, DPPH and chemiluminescence assays, using Trolox and quercetin as standards.
Journal ArticleDOI
Microencapsulation of anthocyanin pigments of black carrot (Daucus carota L.) by spray drier
Seda Ersus,Ünal Yurdagel +1 more
TL;DR: In this article, the acidified ethanol extracts of black carrots which have a high anthocyanin content were spray-dried using a range of maltodextrins [Stardri 10 (10DE), Glucodry 210 (20−23DE), and MDX 29 (28−31 DE)] as a carrier and coating agents.
Journal ArticleDOI
Phenolic profile and antioxidant activity of the Algerian ripe date palm fruit (Phoenix dactylifera)
TL;DR: In this paper, the authors determined the phenolic profile of seven different varieties of ripe date palm fruit (Phoenix dactylifera) from Algeria by LC-DAD-MS (ESI+), to investigate their respective antioxidant activities by the DPPH· method and to estimate their phenolic content using the Folin-Ciocalteu method.
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Polyphenolic content and in vitro antioxidant characteristics of wine industry and other agri-food solid waste extracts
TL;DR: In this article, solid by-products from white and red wine industry were evaluated as potential sources of antioxidant phytochemicals on the basis of their content in phenolics and in vitro antioxidant activity.
References
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Journal ArticleDOI
Use of a Free Radical Method to Evaluate Antioxidant Activity
TL;DR: The antiradical properties of various antioxidants were determined using the free radical 2,2-Diphenyl-1-picrylhydrazyl (DPPH*) in its radical form as discussed by the authors.
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A procedure to measure the antiradical efficiency of polyphenols
TL;DR: In this article, the kinetic behavior of polyphenols common in fruits as free radical scavengers was studied using 2,2-diphenyl-1-picrylhydrazyl (DPPH).
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Comparison of the antioxidant activity of aspalathin with that of other plant phenols of rooibos tea (Aspalathus linearis), alpha-tocopherol, BHT, and BHA
TL;DR: In this paper, the antioxidant activity of aspalathin, the major flavonoid of unfermented rooibos tea, was compared with that of other polyphenols present in roobios tea, α-tocopherol, BHT, and BHA using β-carotene bleaching, α,α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging, and automated Rancimat methods.
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Evaluation of total antioxidant potential (TRAP) and total antioxidant reactivity from luminol-enhanced chemiluminescence measurements
TL;DR: The results obtained employing human blood plasma and human urine show that the detected antioxidant capacity of both fluids is mainly related to the uric acid concentration of the samples.
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An end‐point method for estimation of the total antioxidant activity in plant material
TL;DR: In this article, a spectrophotometric end-point method has been developed to evaluate L-ascorbic acid in aqueous media, and this represents an improvement over the lag-method previously reported.