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Articles by Gabriela BUSUIOC
Total Records ( 2 ) for Gabriela BUSUIOC
  Gabriela BUSUIOC , Carmen Cristina ELEKES , Cristina RADULESCU , Nicolae PETRESCU , Anca GHEBOIANU and Beatrice SERDIN
  All over the world today is developing more and more the studies concerning biochemical and physiological features of mushrooms (macromycetes) in the view to promote them as biological tools in different types of biotechnologies grace of their bioabsorption capacity for biominerals, heavy, rare or noble metals. Generally the researches are focused on the elemental content of mushrooms (Barros, 2008; Jentschke, 2000; Krupa, 1997, 2004; Yamaca, 2007). This paper is about the level of bioabsorption for some heavy metals inside fruiting body, correlated to the substrate content and pH value. It is possible that one macromycetes species to contain in a high concentration one metal, but to have a low capacity of bioabsorption, the storage level being influenced by the substrate or environmental factors. This study aim is to establish the reality concerning the bioabsorption capacity for heavy metals of following six macromycetes species: Coprinus picaceus, Coprinus cinereus, Pseudotrametes gibbosa, Lyophyllum crassifolium, Paxillus involutus and Phellinus tremulae, grown in condition of natural pH of their substrate in a forestry ecosystem of Dambovita county in south of Romania. The elemental content of biological and environmental samples was determined by Atomic Absorption Spectrometry (AAS). So, maximum concentration of cobalt was find in fruiting body of Pseudotrametes gibbosa (0,1 ppm), minimum being at fruiting body of Coprinus cinereus (0,002). It was find nickel only in fruiting body of Phellinus tremulae and Pseudotrametes gibbosa.
  Carmen Cristina ELEKES and Gabriela BUSUIOC
  The mushrooms represent an important contribution for the daily necessary for Fe, Mg and Zn of a human body. The trace metals concentrations were established by Inductively Coupled Plasma - Atomic Emission Spectrometry method. The results are varying with the analyzed species of mushrooms between 107.84 and 403.42 mg/kg for Fe, 367.14 to 1624.18 mg/kg for Mg and between 6.98 to 124.30 mg/kg for Zn. Reported to 100 g of fresh mushrooms these concentrations represent 14-121% for Fe, 2.5-21.9% for Mg and 1.2-44.7 for Zn from the daily necessary. The metals concentrations in fruiting body are in correlation one with each others, their absorption being species-dependent. The bioaccumulation factor has values under 0.1 for Fe, between 0.14 and 0.33 for Mg and between 0.04 and 0.77 for Zn with the highest values in Marasmius oreades and Calvatia excipuliformis species.
 
 
 
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