Journal ArticleDOI
Antioxidant galloylated flavonol glycosides from Calliandra haematocephala.
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TLDR
Three new acylated quercetin rhamnosides have been isolated from the leaves and stem of Calliandra haematocephala Hassk and exhibited lethal effect towards brine shrimp Artemia salina.About:
This article is published in Natural Product Research.The article was published on 2006-08-21. It has received 52 citations till now. The article focuses on the topics: Myricitrin & Quercitrin.read more
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HPLC-DAD-ESI-MS/MS screening of bioactive components from Rhus coriaria L. (Sumac) fruits
Ibrahim M. Abu-Reidah,Mohammed S. Ali-Shtayeh,Rana M. Jamous,David Arráez-Román,Antonio Segura-Carretero +4 more
TL;DR: More than 180 phytochemicals (tannins, (iso)flavonoids, terpenoids, etc.
Journal ArticleDOI
Flavonoids and their glycosides, including anthocyanins
Nigel C. Veitch,Renée J. Grayer +1 more
TL;DR: This review describes more than 600 new examples of naturally occurring flavonoids found either as aglycones or glycosides, comprising flavones, flavonols, chalcones, dihydrochalcones and anthocyanidins.
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Flavonoids as Potent Scavengers of Hydroxyl Radicals.
Jakub Treml,Karel Šmejkal +1 more
TL;DR: Flavonoids, as natural plant antioxidants and essential component of the human diet, are reviewed as compounds interacting with the production of hydroxyl radicals and the structure of the flavonoids is discussed.
Journal ArticleDOI
Green biosynthesis of silver nanoparticles using Calliandra haematocephala leaf extract, their antibacterial activity and hydrogen peroxide sensing capability
TL;DR: In this paper, the first time, silver nanoparticles were successfully synthesized using Calliandra haematocephala leaf extract in the current investigation, and the as-formed silver particles were characterized by UV-Vis spectrophotometer and the characteristic surface plasmon resonance peak was identified to be 414nm.
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Walnut (Juglans regia) leaf extracts are strong scavengers of pro-oxidant reactive species
TL;DR: In this article, an ethanol:water (4:6) extract from Juglans regia leaves was evaluated for its putative in vitro scavenging effects on reactive oxygen species (ROS) [hydroxyl radical (HO), superoxide radical (O 2 - ), peroxyl radical(ROO ) and hydrogen peroxide (H2O2)] and reactive nitrogen species [nitric oxide ( NO) and peroxynitrite anion (ONOO−)].
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Structure-antioxidant activity relationships of flavonoids and phenolic acids
TL;DR: The factors underlying the influence of the different classes of polyphenols in enhancing their resistance to oxidation are discussed and support the contention that the partition coefficients of the flavonoids as well as their rates of reaction with the relevant radicals define the antioxidant activities in the lipophilic phase.
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The deoxyribose method: a simple "test-tube" assay for determination of rate constants for reactions of hydroxyl radicals.
TL;DR: It is suggested that the deoxyribose assay is a simple and cheap alternative to pulse radiolysis for determination of rate constants for reaction of most biological molecules with hydroxyl radicals.
Book
The Flavonoids: Advances in Research
Jeffrey B. Harborne,T. J. Mabry +1 more
TL;DR: In this paper, carbon-13 NMR Spectroscopy of Flavonoids was used for isolation techniques for the extraction of Flavone and Flavonol Glycosides, respectively.