Effects of canning processes on the elements content of cultivated mushrooms (Agaricus bisporus)

Mushroom (Agaricus bisporus) was studied for chemical characteristics after blanching and different chemical preservations (acidification and control process). Losses of Mn, Cu, Zn and Fe during blanching treatment were 45, 3.9, 23.48 and 35.3%, respectively. On the other hand, losses of drained weight values were only 37.5%. During storage for four months, and using different chemical preservation treatments, the differences of the means of the elements and drained weights were not significant (P < 0.05).