The efficacy of Prunella extracts in the prevention and treatment of lung cancer has been attributed to different components. In this study, an "active components combination model" hypothesis was proposed to explain the anti-tumor activity of Prunella. The efficacy of Prunella extracts from different regions was compared in vitro and in vivo, and the TNF-α activity in serum of tumor-bearing mi...

Dietry flavonoids(Poly phenols) are important phytonutrient component widely distributed in plant foods , flavonoids have beneficial biological activities,such as antioxidant activity can chelate with metal ions the interaction of lead(׀׀) ion a poly hydroxylated flavonoids, quercetin molecule,were investigated electrochemically acidic media .The Differential Puls Polarographic Techanique was u...

Dissolved lignin phenols and optical properties of dissolved organic matter (DOM) were measured to investigate the sources and transformations of terrigenous DOM (tDOM) in Otsuchi Bay, Japan. Three rivers discharge into the bay, and relatively high values of syringyl:vanillyl phenols (0.73 ± 0.07) and cinnamyl:vanillyl phenols (0.33 ± 0.10) indicated large contributions of non-woody angiosperm ...

−Various substituted phenols and phenylenediamines were enzymatically polymerized by horseradish peroxidase in 80% (v/v) organic solvents-aqueous buffer (100 mM sodium acetate, pH 5) mixtures with H2O2 as the oxidant. The thermal stability of the polymers was investigated by thermogravimetric analysis (TGA) and represented by the char yield (wt% of the initial polymer mass) after being heated a...

A soluble enzyme system which catalyzes the aerobic oxidation of reduced pyridine nucleotides in wheat germ has previously been described (1). Peroxidase was shown to be a component of this system. Later, Humphreys (2) demonstrated that Mn+ and an unidentified cofactor were required for aerobic oxidation of TPNH’ in crude preparations of malic enzyme from wheat germ. Although no attempt was mad...

Mol. Nutr. Food Res. 2022, 66, 2200617 DOI: 10.1002/mnfr.202200617 (Poly)phenols are widespread in plant-based foods. Their effects on human health pleiotropic but our knowledge their metabolism and bioactivity is limited. Exploring new experimental approaches key better understand them. A brief introduction to all the articles this special issue provided by Pedro Mena Alan Crozier, guest-edito...