Mineral contents in edible mushrooms growing on woods. Comparison with mineral contents in mushrooms growing in soil.

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  • 木に発生する食用キノコの無機質含有量　土に発生するものとの比較
  • キ ニ ハッセイスル ショクヨウ キノコ ノ ムキシツ ガンユウリョウ ツチ
  • 土に発生するものとの比較

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Abstract

The contents of potassium, sodium, calcium, magnesium, phosphorus, iron, copper, zinc, manganese, cadmium, lead, arsenic and mercury in 13 species (17 samples) of wild edible mushrooms and 4 species (6 samples) of cultivated mushrooms growing on woods wermushrooms and 4 species (6 samples) of cultivated mushrooms growing on woods werdistricts from 1979 to 1986. <BR>The results were as follows; K: 02-6.8%, Na: 8-206mg/100g, Ca: 8-126mg/100g, Mg: 20-168mg/100g, P: 28-1370mg/100g, Fe: 1.1-68.6mg/100g, Cu: 0.1-4.0mg/100g, Zn: 0.2-8.1mg/100g, Mn: 0.4-3.9mg/100g, Cd: BDL (Below Detectable Level)- 4.64ppm, Pb: BDL-5.44ppm, As: BDL-0.27ppm and Hg: BDL-1.21ppm.Some characteristics were found in the mineral contents of the samples belonged to the same family, genus and species. Polyporaceae exhibited lower concentration of minerals than the others except iron. The mineral contents in Armillariella were generally high and in definite range except calcium and iron. The mineral contents in Armillariella mellea and Laeti-pororus sulphureus were in definite range except calcium. The mushrooms growingin soil exhibited significantly (p<0.01) greater concentrations of copper, zinc, manganese and mercury than thosegrowingonwoods. OnTricholomataceae, the mushrooms growingon woods exhibited significantly (p<0.05) greater concentration of magnesium and less con- centration of mercury than those growing in soil.

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