We show that CGA and caffeic acid
displayed a dramatic protective effect against the nitric oxide donor, sodium nitroprusside.
The presence of ten antioxidant compounds was investigated: gallic acid, chlorogenic acid, ellagic acid, caffeic acid
, catechin, quercetin, quercitrin, isoquercitrin, rutin, and kaempferol.
Combinations of phenolic acids; caffeic acid
, syringic acid and 4-hydroxybenzoic acid with the concentrations from 1.
The carboxylic acids used in this study were oxalic acid (OX), malic acid (MAL), citric acid (CIT), 4-hydroxybenzoic acid (HB), protocatechuic acid (PCH), 4-hydroxycinnamic acid (HC; also known as p-coumaric acid), and caffeic acid
The ortho-substituted phenolics such as salicylic and o-coumaric acids, and dihydro-substituted phenolics such as protocatechuic and caffeic acids
, are adsorbed by clay minerals by forming chelate complexes with metals (Shindo & Kuwatsuka, 1975).
Devasagayam, "Antioxidant and prooxidant nature of hydroxycinnamic acid derivatives ferulic and caffeic acids
," Food and Chemical Toxicology, vol.
Simultaneous determination of protocatechuic acid, syringin, chlorogenic acid, caffeic acid
, liriodendrin and isofraxidin in Acanthopanax senticosus HARMS by HPLC-DAD," Biological and Pharmaceutical Bulletin, vol.
The antiproliferative activity of cinnamic, ferulic, 3,4-dimethoxycinnamic and caffeic acids
which constitute the majority of propolis (a resinous hive product) was determined against different cell lines.
Glipizide, glycogen, serum bovine albumin, gallic acid, chlorogenic acid, caffeic acid
, caffeine, theobromine, quercetin, catechin, (-)epigallocatechin and (-)epigallocatechin gallate were purchased from Sigma-Aldrich Chemical Company[R] (St.
CAPE, known as an active compound of propolis from honeybee hives, was synthesized from caffeic acid
and [beta]-phenylethyl bromide and other caffeic acids
were purified and synthesized as described in Materials and methods.
However, it has been shown that both chlorogenic acid and caffeic acid
are strong antioxidants.
The phenolic acids, rosmarinic acid (RA), caffeic acid
(CA) and ferulic acid (FA) are widely present in foods and dietary supplements, and they are assumed to exert various beneficial biological effects.