[Lead, nickel and manganese content in edible mushrooms]. / Continutul în plumb, nichel si mangan al ciupercilor comestibile.

The mushrooms accumulate from environmental different kind of pollutants depend by their species, growth phase, and ecological category. For this reason we analysed 55 samples of mushrooms (39 species) with different type of edible proprieties, harvested from Suceava and Iasi County. Samples dried to 105 degree C had been mineralised with nitric acid, by SAA in mineralised had been determined manganese, lead and nickel. From samples 52 (94.54%) contain manganese, 36 contain lead (65.45%) and 28 contain nickel (50.90%). Over 50% of samples contain the greatest quantity of metals in cap comparative with stalk. The highest quantity of metals had been determined in poor edible mushrooms. All samples contain lead over 3 mg/kg with maximum in Chalciporus piperatus (SV 3)--237.40, Clitopilus prunulus-(SV 2)--109.28. The most contaminated samples had been harvested from Rarau Mountainous-Valea Caselor and Bucium-Dobrovat Forest.

[The amount of sulphites in wild mushrooms from Iasi and Suceava districts]. / Cantitatea de sulfiti în ciupercile recoltate din judetele Iasi si Suceava.

As a part of a larger study regarding the contamination of mushrooms from Moldavia by chemical pollutants, we aimed at proposing sulphites determination in samples harvested from different zones from Iasi and Suceava districts, from April to September 2005. We analysed elements (gills, cap, stem) of 68 mushrooms (48 different species). The sulphites were extracted with water, and were analysed spectrophotometrically in the aqueous extract by West-Gaeke method. Results were expressed in microg SO2/g dried product at 105 degrees C. Higher levels of sulphites were found in Clitopilus prunulus (865.36-stem) and Cantharelus cibarius (444.49-cap) for very good edible mushrooms; in Chalciporus piperatus (1016.13-stem) and Pseudohydnum gelatinosum (737.17-all mushroom) for mediocre edible mushrooms; in Panaeolus sphinctrinus (490.11-stem) for toxic ones. In 34 samples (50.74%), the highest level of sulphites was noted mostly in the mushroom stem than in its cap. The mushrooms capacity of sulphite accumulation is very varied, and the results do not allow a correlation between the amount of sulphites found in stem and the one found in cap or gills.