Metallic mushrooms

Atomic analytical techniques can extract the metal concentrations from an edible, wild mushroom known as the bay bolete, according to scientists in Poland. Their work focused on calcium, iron, potassium, magnesium, manganese, sodium and zinc as well as mercury levels and found that all were present in ranges well within safety limits for samples of exported mushrooms. Writing in the journal Food Chemistry, Anna Kojta and Jerzy Falandysz of the Laboratory of Environmental Chemistry & Ecotoxicology at the University of Gdansk, in Poland, explain how they collected the edible fruiting body part of the popular bay bolete mushroom from several sites across the country. The same approach could be used to test other edible species.