Author
E. Graf
Bio: E. Graf is an academic researcher. The author has an hindex of 1, co-authored 1 publications receiving 370 citations.
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TL;DR: Special attention will be devoted to the use of tandem-mass spectrometric (MS/MS) techniques for the characterization of several important sub-classes of flavonoids, and to the potential of combined diode-array UV (DAD UV), tandem-MS and nuclear magnetic resonance (NMR) detection for unambiguous identification.
627 citations
TL;DR: The rate of glucuronidation of quercetin at each position on the polyphenol ring by human liver cell-free extracts containing UDP-glucuronosyltransferases is determined and these compounds can retain some biological activity depending on conjugation position at expected plasma concentrations.
360 citations
TL;DR: The overall regulation role of these compounds in compatible and incompatible host‐microbe interactions is discussed in this review.
Abstract: Numerous reports have been published on the occurrence, isolation, and characterization of phenolic compounds in plant‐soil systems. The low molecular weight phenolics are of great interest because of their effects as allelopathic compounds and plant growth regulators, and they have traditionally been considered as defense molecules in plant‐pathogen interactions. More recently, their role as signal molecules in plant‐microbe systems has become evident. Specific molecules can act either as inducers for virulent genes in plant‐pathogen systems, such as Agrobacterium, or as inducers and “repressors”; in Rhizobium‐legumc and probably other symbiosis. The overall regulation role of these compounds in compatible and incompatible host‐microbe interactions is discussed in this review.
286 citations
TL;DR: It is demonstrated that binding of the flavonoids to the RBC membranes significantly inhibits lipid peroxidation, and at the same time enhances their integrity against hypotonic lysis.
258 citations
TL;DR: The emission, excitation, and anisotropy data indicate that the quercetin molecules bind at a motionally restricted site near tryptophan-214 in the interdomain cleft region of HSA, and the excitation spectrum suggests occurrence of efficient Förster type resonance energy transfer (FRET) from the single tryptophile residue of H SA to the protein bound quercETin.
201 citations