Now showing items 31-40 of 1084
Flow microcalorimetricstudies of phenol and its chlorinated derivatives and a theoretical evaluation of their possible inhibition mode on Chromobacterium violaceum respiration
(Elsevier Science BvAmsterdamHolanda, 2004)
Phenolic compounds of propolis from Central Chilean matorral
(Verlag der Zeitschrift fur Naturforschung, 2001)
Pinocembrin, acacetin, galanguin, izalpin, kaempferide, prenyletin and diarytheptane were isolated from propolis from Central Chile.
Identification of phenolic compounds by HPLC-ESI-MS/MS and antioxidant activity from Chilean propolis
(Elsevier Ltd, 2014)
© 2014.Propolis is a complex hive product produced by honey bees, Apis mellifera. Its composition and biological activities depend on the vegetation where hives are placed. Propolis is often used as a food supplement. The ...
Trypanosoma cruzi: A possible control of transfusion-induced Chagas' disease by phenolic antioxidants
The following phenolic antioxidant food additives were evaluated against Trypanosoma cruzi epimastigotes: BHT, BHA, gallic acid and its methyl, propyl, octyl, and lauryl esters, 2,4-di-tert-butyl-6-(4-methoxybenzyl)-phenol, ...
NbCl5-Promoted Synthesis of 4-Aryl-3,4-dihydrocoumarins by Multicomponent Reaction
(Georg Thieme Verlag Kg, 2012-11-01)
Substituted 4-aryl-3,4-dihydrocoumarins are synthesized from multicomponent reactions between phenols, dimethyl malonate, and aryl aldehydes catalyzed by niobium pentachloride. This new method is simple, cost-effective, ...
Pharmacognostical evaluation of fruits of Solanum lycocarpum A. St.-Hill. (Solanaceae)
This study describes the chemical and physical-chemical profile of plant drug and ethanolic extract obtained from fruits of Solanum lycocarpum A. St.-Hill. (Solanaceae). The physical and chemical analysis involved the ...
Exploring antioxidant reactivity and molecular structure of phenols by means of two coupled assays using fluorescence probe (2,3-diazabicyclo[2.2.2]oct-2-ene, DBO) and free radical (2,2-diphenyl-1-picrylhydrazyl, DPPH )
(Indian Academy of Sciences, 2017)
Phenolic compounds can be considered as the most important bioactive compounds in Mediterranean diet. However, many of the complex connections between phenols antioxidant reactivity and their molecular structure remain ...
Spectrofluorimetric study of phenolic endocrine disruptors in cyclodextrins media
(Royal Society of Chemistry, 2015-02)
This study focuses on the spectrofluorimetric behavior of bisphenol A (BPA), 4-octylphenol (OP) and 4-nonylphenol (NP) in the presence of native and derivative cyclodextrins (CDs). The weak fluorescence emission bands of ...