Element Contents of Pleurotus eryngii (DC. ex Fr.) Quel. var. eryngii Grown on Some Various Agro-Wastes

Abstract

In this study, the concentrations of K, Ca, Na, Fe, Zn, Mn, Cu, Cr, Cd, Co, Ni and Pb in P. erygii var. erygii grown on various agro-wastes were investigated. Mineral element contents were determined as 11.0-18.9 mg g(-1) K, 0.35-1.03 mg g(-1) Ca, 0.16-0.88 mg g(-1) Na, 602.4-1524.5 mg kg(-1) Fe, 44.7-102.7 mg kg(-1) Zn, 17.7-37.5 mg kg(-1) Mn, and 12.6-36.0 mg kg(-1) Cu (dry weight). Contents of metals varied significantly, with the (highest) potassium contents ranging front 11.0 to 18.9 mg g(-1) and the (lowest) copper contents ranging from 12.6 to 36.0 mg kg(-1) of dry weight detected among seven mineral elements. Furthermore. toxic elements such as Cr, Cd, Co, Ni and Pb were not determined in all testing groups.