The aim of the study was to quantify total extractive contents and lipophilic compounds, stilbenes, lignans in Scots pine stem wood, bark, branch biomass, sawmill residues four climatic regions Finland evaluate most optimal sources extractives for bio-based chemical biorefining bioenergy products. Data were derived from 78 chip samples before-mentioned raw materials, being pooled by tree height...

It is usually easier to carry out a reaction to produce racemic rather than optically active products. There is one notable exception: the Sharpless asymmetric hydroxylation 1 is so straightforward and practical that it is easier to carry out than previous racemic versions. In using this reaction on a variety of olefins we needed to make the racemic compounds to provide reference samples of dio...

The He I photoelectron (PE) spectra of stilbene (1), 2,2'-dichlorostilbene (2) 2-amino-2'-chlorostilbene (3), 2,2'-diaminostilbene (4) ,and 2,2'-dinitrostilbene (5), all in their trans configuration are recorded and discussed. The electronic structure of 1-5 can well be described on the basis of the composite molecule method and simple Hiickel molecular orbital (HMO) calculations. Results indic...

Transient receptor potential canonical 5 (TRPC5) forms cationic channels that are polymodal sensors of factors including oxidized phospholipids, hydrogen peroxide, and reduced thioredoxin. The aim of this study was to expand knowledge of the chemical-sensing capabilities of TRPC5 by investigating dietary antioxidants. Human TRPC5 channels were expressed in HEK 293 cells and studied by patch cla...

Plants of the Carex genus (Family: Cyperaceae) have attracted recent attention as potential food additives due to their high levels of potential bioactive compounds. In this study, the stilbene contents of five unexplored Carex species were investigated: Carex capillacea, Carex hirta, Carex buchananii, Carex cuprina, Carex glauca. High-performance liquid chromatography coupled to mass spectrome...

Seven stilbenes and one catechin were bioactivity-guidedly isolated from the rhizomes of Rheum palmatem. Their structures were identified as piceatannol (1), resveratrol (2), piceid (3), rhapontigenin (4), piceatannol-3´-O-β-D-glucopyranoside (5), rhaponticin (6), catechin (7) and desoxyrhapontigenin (8). Anti-monoamine oxidase (MAO) activities of compounds 1-8 were tested. Compounds 1 and 8 sh...