N tau-methylhistamine is one of the histamine metabolites. N tau-methylhistamine in plasma and urine is a good parameter for histamine release and the determination of this histamine metabolite is generally less hampered by possible artifacts (due to basophil disrupture a very short half-life time or bacterial production) than determinations of histamine itself.

Frangulin A protects Vitis vinifera leaves from Plasmopara viticola infection and inhibits the first stage of biotrophic hyphal development of P. Viticola.

Zearalenone is a mycotoxin produced mainly by fungi belonging to the genus Fusarium in foods and feeds. Possess oestrogenic activity in pigs cattle and sheep with low acute toxicity. Causes precocious development of mammae and other estrogenic effects in young gilts.