Eleven different wild-edible mushroom species growing in the Black Sea region of Turkey were analysed for their metal content. Specimens of mushrooms were gathered in Trabzon, Giresun and Ordu and analyzed for 31 minerals, four of which (Be, Sb, Te and Ti) were not detected. Whereas some minerals including Ag, As, Cd, La, Mo, Pb, Se, Y and Zr were detected in just a few mushroom species, another 18 minerals were found in all 11 species. All metal concentrations were expressed on a dry weight basis (d.w.). With regard to nutritionally important amounts of essential and trace minerals, the metal content (µg/g d.w.) of mushroom samples ranged from 21,800-39,800 for K, 2590-14,000 for P, 268-1600 for Ca, 561-1210 for Mg, 74-829 for Fe, 11.2-321 for Cu, 36.2-241 for Zn, 14.1-76.5 for Mn and 0.13-2.85 for Co. Small amounts of toxic metals such as As, Cd and Pb were found in all 11 mushroom species. L. laccata contained a large amount of As (145 µg/g d.w.). These results show that the investigated mushrooms can be a useful component for human diets because of their high content of many essential minerals and trace elements and low content of toxic metals.
C. H. Gast, E. Jansen, J. Bierling and L. Haanstra, “Heavy Metals in Mushrooms and Their Relationship with Soil Characteristics,” Chromosphere, Vol. 17, No. 4, 1988, pp. 789-799. doi:10.1016/0045-6535(88)90258-5
P. Manzi, L. Gambelli, S. Marconi, V. Vivfanti and L. Pizzoferrato, “Nutrients in Edible Mushrooms: An Interspecies Comparative Study,” Food Chemistry, Vol. 65, No. 4, 1999, pp. 477-482. doi:10.1016/S0308-8146(98)00212-X
P. Kalac and L. Svoboda, “A Review of Trace Element Concentrations in Edible Mushrooms,” Food Chemistry, Vol. 69, 2000, pp. 273-281. doi:10.1016/S0308-8146(99)00264-2
R. Sanmee, B. Dell, P. Lumyomg, K. Izumori and S. Lumyong, “Nutritive Value of Popular Wild-Edible Mush- rooms from Northern Tailand,” Food Chemistry, Vol. 82, No. 4, 2003, pp. 527-532. doi:10.1016/S0308-8146(02)00595-2
I. Turkekul, M. Elmastas and M. Tuzen, “Determination of Iron, Copper, Manganese, Zinc, Lead, and Cadmium in Mushroom Samples from Tokat, Turkey,” Food Chemistry, Vol. 84, No. 3, 2004, pp. 389-392. doi:10.1016/S0308-8146(03)00245-0
R. Moreno-Rojas, M. A. Diaz-Valverde, B. M. Arroyo, T. J. Gonzalez and C. J. B. Capote, “Mineral Content of Gurumelo (Amanita ponderosa),” Food Chemistry, Vol. 85, No. 3, 2004, pp. 325-330. doi:10.1016/S0308-8146(03)00264-4
D. Agrahar-Murugkar and G. Subbulakshmi, “Nutritional Value of Wild-Edible Green Leaves Consumed by the Khasis of Meghalaya,” Food Chemistry, Vol. 89, 2005, pp. 599-603. doi:10.1016/j.foodchem.2004.03.042
P. K. Ouzouni, P. G. Veltsistas, E. K. Paleologos and K. A. Riganakos, “Determination of the Metal Content in Wild-Edible Mushroom Species from Regions of Greece,” Journal of Food Composition and Analysis, Vol. 20, 2007, pp. 480-486. doi:10.1016/j.jfca.2007.02.008
R. Pelkonen, G. Alfthan and O. Jarvinen, “Element Concentrations in Wild-Edible Mushrooms in Finland,” The Finnish Environment, Vol. 25, Helsinki, 2008, p. 21.
P. Kalac, “Chemical Composition and Nutritional Value of European Species of Wild Growing Mushrooms: A Review,” Food Chemistry, Vol. 113, No. 1, 2009, pp. 9- 16. doi:10.1016/j.foodchem.2008.07.077
J. Vetter, “Arsenic Content of Some Edible Mushrom Species” European Food Research and Technology, Vol. 219, 2004, pp. 71-74. doi:10.1007/s00217-004-0905-6
M. Tuzen, M. Ozdemir and A. Demirbas, “Study of Heavy Metals in Some Cultivated and Uncultivated Mushrooms of Turkish Origin,” Food Chemistry, Vol. 63, No. 2, 1998, pp. 247-251. doi:10.1016/S0308-8146(97)00225-2
E. Sesli and M. Tuzen, “Levels of Trace Elements in the Fruiting Bodies of Macrofungi Growing in the East Black Sea Region of Turkey,” Food Chemistry, Vol. 65, No. 4, 1999, pp. 453-460. doi:10.1016/S0308-8146(98)00194-0
O. Isildak, I. Turkekul, M. Elmastas and M. Tuzen, “Analysis of Heavy Metals in Some Wild-Grown Edible Mushrooms from the Middle Black Sea Region, Turkey,” Food Chemistry, Vol. 86, 2004, pp. 547-552. doi:10.1016/j.foodchem.2003.09.007
M. Soylak, S. Saracoglu, M. Tuzen and D. Mendil, “Determination of Trace Metals in Mushroom Samples from Kayseri, Turkey,” Food Chemistry, Vol. 92, No. 4, 2005, pp. 649-652. doi:10.1016/j.foodchem.2004.08.032
M. Rudawska and T. Leski, “Macro- and Microelement Contents in Fruiting Bodies of Wild Mushrooms from the Notecka Forest in West-Central Poland,” Food Chemistry, Vol. 92, No. 3, 2005, pp. 499-506. doi:10.1016/j.foodchem.2004.08.017
M. Yamac, D. Yildiz, C. Sar?kurkcu, M. Celikkollu and M. H. Solak, “Heavy Metals in Some Edible Mushrooms form the Central Anatolia, Turkey,” Food Chemistry, Vol. 103, No. 2, 2007, pp. 263-267. doi:10.1016/j.foodchem.2006.07.041
A. Colak, Y. Kolcuoglu, E. Sesli and O. Dalman, “Biochemical Composition of Some Turkish Fungi,” Asian Journal of Chemistry, Vol. 19, No. 3, 2007, pp. 2193- 2199.
A. Colak, O. Faiz and E. Sesli, “Nutritional Composition of Some Wild-Edible Mushrooms,” Turkish Journal of Biochemistry, Vol. 34, No. 1, 2009, pp. 25-31.
A. Demirbas, “Concentrations of 21 Metals in 18 Species of Mushrooms Growing in the East Black Sea Region,” Food Chemistry, Vol. 75, No. 4, 2001, pp. 453-457. doi:10.1016/S0308-8146(01)00236-9
M. Tuzen, “Determination of Heavy Metals in Soil, Mushroom and Plant Samples by Atomic Absorption Spectrometry,” Microchemical Journal, Vol. 74, No. 3, 2003, pp. 289-297. doi:10.1016/S0026-265X(03)00035-3
D. Mendil, O. D. Uluozlu, E. Hasdemir and A. Caglar, “Determination of Trace Elements on Some Wild-Edible Mushroom Samples from Kastamonu, Turkey,” Food Che- mistry, Vol. 88, No. 2, 2004, pp. 281-285. doi:10.1016/j.foodchem.2004.01.039
M. Tuzen, E. Sesli and M. Soylak, “Trace Element Levels of Mushroom Species from the East Black Sea Region of Turkey,” Food Control, Vol. 18, 2007, pp. 806-810. doi:10.1016/j.foodcont.2006.04.003
J. Breitenbach and F. Kranzlin, “Fungi of Switzerland,” Verlag Mykologia, Vol. 1-5, Lucerne, Switzerland, 1984- 2000.
M. Moser, “Keys to Agarics and Boleti (Polyporales, Boletales, Agaricales, Russulales),” Stuttgart, Gustav Fischer Verlag, 1983.
P. K. Ouzouni, D. Petridis, W. D. Koller and K. A. Riganakos, “Nutritional Value and Metal Content of Wild- Edible Mushrooms Collected from West Macedonia and Epirus, Greece,” Food Chemistry, Vol. 115, No. 4, 2009, pp. 1575-1580. doi:10.1016/j.foodchem.2009.02.014
J. Vetter, “Toxic Elements in Certain Higher Fungi,” Food Chemistry, Vol. 48, No. 2, 1993, pp. 207-208. doi:10.1016/0308-8146(93)90060-S
E. V. Crisan and A. Sands, “The Biology and Cultivation of Edible Mushrooms,” Nutritional Value, Academic Press, New York, 1978, pp. 137-168.