The presence of guaiacol in cork stoppers is responsible for some cases of cork taint causing unpleasant alterations to wine. We have performed a characterization of the cork-associated microbiota by isolating 55 different microorganisms: eight yeast, 14 filamentous fungi or molds, 13 actinomycetes and 20 non-filamentous bacteria. A screening for degradation of vanillic acid and guaiacol produc...

BACKGROUND To detect the expression of multidrug resistance molecules P-glycoprotein (P-gp), Lung resistnce protein (LRP) and Multidrug resistance-associated protein (MRP) and analyze the relationship between them and the clinico-pathological features. METHODS The expressions of P-gp, LRP and MRP in formalin-fixed paraffin-embedded tissue sections from 59 gastric cancer patients were determin...

Bryophytes are poikilohydric organisms that can be used as model plants to study desiccation tolerance mechanisms. The main objective of this was examine the activities antioxidant enzymes ascorbate peroxidase (APX), catalase (CAT) and guaiacol (POD) in rehydrated desiccated states Syntrichia ruralis (Hedw.) Web. & Mohr. from two slopes, one North-east (NE) South-west (SW) facing collected ...

Chlorella vulqaris is a unicellular microorganism that offers health benefits due to its concentrated antioxidant production. This microalga has received huge attention natural antioxidative property as an alternative source because of rapid growth, easy and flexible culture. Research date only focuses on the growth production in selected phase, especially exponential stationary phases; however...

In thе prеsent studу, a simрle protосоl for in vitro rooting induction of the important medicinal plant Coleus forskohlii Briq with high content secondary metabolites antioxidant activity was described. For germination seeds C. were placed on MS medium suррlemented 0.4 mg L-1 gibberellic acid and 1.0 CaCl2. The оbtаinеd shoots cultured half-strength ½ containing indole-3-butyric (IBA) or indole...

The present study was first aimed at a complete steady-state kinetic analysis of the reaction between guaiacol (2-methoxyphenol) and the myeloperoxidase (MPO)/H2O2 system, including a description of the isolation and purification of MPO from human polymorphonuclear neutrophil cells. Secondly, the overall reaction of the oxidation of NADPH, mediated by the reactive intermediates formed from the ...

The in vivo and in vitro haemolytic activity of guaiacol glycerol ether has been investigated. Intravenous injections in concentrations of 12.5 per cent or greater produced intravascular haemolysis. The haemolysis produced was not related to the speed of injection. In vitro studies with concentrations of guaiacol glycerol ether confirmed that the critical concentration for the production of hae...

In this study, we have evaluated the co-application of epibrassinolide (24-EBL) and putrescine (Put) on stress indicators and antioxidant system of Solanum lycopersicum L. grown under salinity stress. EBL and Put application along with NaCl stress showed differential responses in the activities of antioxidant enzymes (superoxide dismutase, catalase and guaiacol peroxidase). Significant increase...

Thyroid peroxidase (TPO) was purified from each thyroid of 10 patients (experiment 1) and 4 patients (experiment 2) with toxic diffuse goiter by a simplified method with monoclonal anti-TPO antibody-assisted immunoaffinity column chromatography. The final preparations were used to measure the heme concentration based on the cyanide difference spectrum, and to determine the Km and kcdt values fr...

(Cultural and ligninolytic activity studies of some polypores (Basidiomycota) from brazilian Atlantic Forest, São Paulo State, Brazil). During a fungi survey in the brazilian Atlantic Forest in São Paulo, São Paulo State, Brazil, polypores growing on decaying wood were collected and fragments of the basidiomata were used to obtain isolates in pure culture. A total of 37 isolates were obtained a...