Cadmium determination in Lentinus edodes mushroom species

Food Science and Technology (Campinas)

Vera Akiko Maihara²  Patricia Landim Da Costa Moura²  Marília Gabriela Miranda Catharino²  Edson Gonçalves Moreira²  Lilian Pavanelli Castro²  Rubens Cesar Lopes Figueira¹ 

[1] ,Instituto de Pesquisas Energéticas e NuclearesSão Paulo SP ,Brasil

关键词: cadmium;    mushrooms;    Lentinus edodes;    atomic absorption spectrometry;    cádmio;    cogumelos;    espécie Lentinus edodes;    espectrometria de absorção atômica;   

DOI  :  10.1590/S0101-20612012005000080

来源: SciELO

【 摘 要 】

Many studies have drawn attention to the occurrence and concentration of toxic elements found in the fruiting body of mushrooms. Some edible mushroom species are known to accumulate high levels of inorganic contaminants, mainly cadmium, mercury, and lead. There are about 2,000 known edible mushroom species, but only 25 of them are cultivated and used as food. In Brazil, the most marketed and consumed mushroom species are Agaricus bisporus, known as Paris champignon, Lentinus edodes, or Shitake and Pleurotus sp, also called Shimeji or Hiratake. In this study, the concentration of cadmium was determined in Lentinus edodes mushrooms from different cities in São Paulo state and some samples imported from Japan and China. The analyses were performed by graphite furnace atomic absorption spectrometry after HNO3-H2O2 digestion. The results showed a lower concentration of Cd in the mushrooms cultivated in São Paulo (0.0079 to 0.023 mg.kg-1 in natura) than that of the mushrooms cultivated abroad (0.125 to 0.212 mg.kg-1 in natura). Although there is no tolerance limit for Cd in mushrooms in Brazil, the results show that Lentinus edodes mushrooms can be safely consumed.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License