Recent studies have raised the question whether there is a potential threat by a horizontal
transfer of toxic plant constituents such as pyrrolizidine alkaloids (PAs) between donor-PA …

Various studies have shown that bee-collected pollen sold as nutritional supplements may
contain toxic pyrrolizidine alkaloids (PAs) and, thus, pose a potential health risk for …

Abstract The EFSA Panel on Contaminants in the Food Chain (CONTAM Panel) carries out
risk assessment on contaminants in food and feed. The presence of hazardous chemical …

Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by over 6000 plant
species worldwide. PAs enter the food chain through accidental co-harvesting of PA …

Pyrrolizidine alkaloids (PAs) are carcinogenic and genotoxic phytochemicals found
exclusively in angiosperms. The ingestion of PA-containing plants often results in acute and …

Tropane alkaloids occur mainly in Solanaceae plants. In the present review, the main
objective is to describe the worldwide occurrence and investigations of anticholinergic …

Pyrrolizidine alkaloids (PA) and PA N-oxides (PANO) are secondary plant metabolites
exhibiting genotoxic and carcinogenic properties. Apart from the roots and leaves, PA/PANO …

In this study, a two-dimensional liquid chromatography tandem mass spectrometry method
was developed and validated for the determination of pesticide residues and contaminants …

Pyrrolizidine alkaloids (PA) are secondary plant defense compounds and known pre-toxins
when containing a 1, 2-double bond. They are commonly produced by various plants and …

Comfrey (Symphytum officinale), a commonly used herb, contains dehydropyrrolizidine
alkaloids that, as a group of bioactive metabolites, are potentially hepatotoxic, pneumotoxic …