Glycosylated p-hydroxybenzoic acid methyl esters and structurally related phenolphthiocerol glycolipids are important virulence factors of Mycobacterium tuberculosis. Although both types of molecules are thought to be derived from p-hydroxybenzoic acid, the origin of this putative biosynthetic precursor in mycobacteria remained to be established. We describe the characterization of a transposon...

As phenolic acids accumulated in monocropping plantations, their allelopathic effects caused the soil’s fertility to decline and productivity decrease. The of stand age generational turnover soil remain unclear. Therefore, we conducted an experiment examine changes acid content accumulation characteristics soils from Eucalyptus plantations terms planting years generations. Soils were collected ...

Soil microorganisms play an important role in agricultural ecosystem. However, there is little information about the effects of putative allelochemicals on specific soil vivo. Cucumber seedlings were treated with four concentrations ferulic and p-hydroxybenzoic acids (0-1.0 μmol g-1 soil) soil. Effects rhizosphere Fusarium community structures abundance analyzed by polymerase chain reaction den...

The effect of spray drying on the different polyphenolic compounds present in root a purple-fleshed sweet potato variety Ipomoea batatas native from Peru was performed by HPLC-QTOF-MSMS. Nine anthocyanins, including four peonidin, three cyanidin and two pelargonidin derivatives glycosylated with sophorose and/or glucose acylated caffeic, ferulic p-hydroxybenzoic acid were identified. Twenty nin...

A simultaneous determination method of saccharin (SA), sorbic acid (SOA), benzoic acid (BA), p-hydroxybenzoic acid ethyl (PHBA-Et), p-hydroxybenzoic acid isopropyl (PHBA-isoPr), p-hydroxybenzoic acid propyl (PHBA-Pr), p-hydroxybenzoic acid isobutyl (PHBA-isoBu) and p-hydroxybenzoic acid butyl (PHBA-Bu) in foods by HPLC was examined. A mixture of acetonitrile-water (1:1) was used to extract thes...

The aim of this study was to find the chemical parameters for differentiation plum cultivars grown along fjord areas Western Norway and Eastern Norway, having specific agroclimatic conditions. Chemical analysis fruits confirmed contents 13 quantified elements, 22 sugar compounds, 11 organic acids, 19 phenolic antioxidant activity in 68 cultivars. Dominated were noted nitrogen (with maximum mean...