Mineral contents in edible mushrooms.

Abstract

The contents of potassium, sodium, calcium, magnesium, phosphorus, iron, copper, zinc, manganese, cadmium, lead, arsenic and mercury in 24 species (27 samples) of wild edible mushrooms and 5 species (6 samples) of cultivated mushrooms, collected and purchased in Tokyo, Tohoku respectively. There were remarkable differences in the mineral contents among the different species of edible mushrooms. Some characteristics were found in the mineral contents of the samples belong to the same species.

Effect of Calcinated Oyster Shell Powder on Growth, Yield, Spawn Run, and Primordial Formation of King Oyster Mushroom (Pleurotus Eryngii)

“…Several studies have been conducted to investigate the heavy metals absorption efficacy of Pleurotus eryngii , Hypsizygus marmoreus , Pholiota nameko , Flammulina velutipes and Ganoderma lucidum from various Ca-sources [ 13 , 14 , 15 , 16 ]. In general, the total amount of calcium content in the mushrooms remains lesser than that of vegetables [ 17 , 18 ]. As a part of efforts to enrich the mineral content in the mushroom, Tabata and Ogura [ 19 ] reported that potato sucrose agar (PSA) and sawdust media with supplementation of 1% Ca salts increased the Ca content of fruiting bodies in H. marmoreus .…”

Responses of Ganoderma lucidum to heavy metals

“…Tyler (1980) reported the mineral analysis of 130 species of fruiting basidiomycetes, revealing a bioconcentration of many undesirable heavy metals. Grabbe and Domsch (1976), Collet (1977), Woggon and Bickerich (1978), Enke et al (1979), Brunnert and Zadra~il (1980), Anderson et al (1982), Ciusa et al (1982), Martinez et al (1983), and Kawai et al (1986) reported heavy metals in many edible mushrooms. The fungi found to be the best heavy metal collectors also showed the highest substrate degradation rates.…”

Absorption of Calcium and Magnesium to the Fruit Body of Aragekikurage (Auricula polytricha (Mont.) Sacc.) from Sawdust Culture Media Supplemented with Calcium and Magnesium Salts

“…However, it is known that in the Jew's-ear mushrooms the content of Ca and Mg in mushrooms is very high (Kawai et al,1986;1990). Apparently, Ca and Mg are especially necessary for the maintenance of the human physiological function.…”