INTRODUCTION: Flap necrosis remains a major complication of reconstructive surgery. Euterpe oleracea Mart., popularly known as “açaí,” is cultivated in the Amazon region of Brazil. It contains hydroxybenzoic acids, antioxidant polyphenolics, flavan-3-ols, and anthocyanins. Açaí exhibits anti-inflammatory action through the inhibition of cyclooxygenases 1 and 2 1 , vasodilation, inhibition of ni...

In this study, we investigate the potential of Moricandia arvensis methanol leaf extract (MeOHL) on calpain activity, melanin biosynthesis and DNA mutagenicity. Cytotoxic effect and measurement of reactive oxygen species (ROS) induced by lucigenin in colorectal cells (BE) were also determined. In addition the chemical analysis of the extract was also studied and the chemical profile illustrates...

A rapid and simple method for the simultaneous determination of twelve sweeteners and nine preservatives in various foods by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed. The sweeteners and preservatives were extracted from solid samples with 80% and 50% methanol and from liquid samples with 80% methanol, followed by Oasis WAX cartridge cleanup. The LC separation was ...

Chrysopogon gryllus and Festuca vallesiaca are components of a number of meadow-pasture communities in Serbia. We performed the analyses of phenolics that influence quality and digestibility of grasses to a great extent. Total phenolics were measured spectrophotometrically and phenolic acids by HPLC analysis. The aboveground parts of C. gryllus contained 10.6 mg/g whereas F. vallesiaca of 21.6 ...

Despite the promising antioxidant action of Lamiaceae herbs in vitro, human studies on these potential sources of dietary antioxidants have remained scarce. In this work, the phenolic acids recovered in human urine after single ingestion of Origanum onites extract were analyzed. The excretion was increased 4- and 2-fold during 0-24 and 24-48 h of the follow-up, respectively. The mean increase i...

The purpose of this thesis was to identify and quantify the non-anthocyanin phenolic compounds in Finnish berries. The compounds of interest were kaempferol, quercetin and myricetin (flavonols); p-coumaric, caffeic and ferulic acids (hydroxycinnamic acids); p-hydroxybenzoic, gallic and ellagic acids (hydroxybenzoic acids). These compounds were selected because of their proposed healthpromoting ...

Strain A81 of Nocardia corallina hydroxylates or demethylates p-anisic acid to p-hydroxybenzoic acid and isovanillic acid. It demethylates veratric acid to a mixture of vanillic and isovanillic acids. These are both demethylated to protocatechuic acid, which undergoes ring cleavage to afford beta-carboxy-cis-cis-muconic acid. The intermediacy of protocatechuic acid in the catabolic pathway of v...