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Rare earth elements concentration in mushroom cultivation substrates affects the production process and fruit‐bodies content of P leurotus ostreatus and C yclocybe cylindracea
Author(s) -
Koutrotsios Georgios,
Danezis Georgios P,
Georgiou Constantinos A,
Zervakis Georgios I
Publication year - 2018
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.9085
Subject(s) - pleurotus ostreatus , bioconcentration , mushroom , bioaccumulation , chemistry , food science , lignin , hemicellulose , inductively coupled plasma mass spectrometry , fungus , composition (language) , cellulose , horticulture , botany , environmental chemistry , biology , biochemistry , mass spectrometry , linguistics , philosophy , organic chemistry , chromatography
BACKGROUND Concentrations of 16 rare earth elements (REEs) and two actinides were determined for the first time both in cultivated mushrooms and in their production substrates by inductively coupled plasma mass spectroscopy. Moreover, the effect of REEs on cultivation parameters and composition of the final product was assessed, together with their potential use for authentication purposes. RESULTS The concentrations of REEs varied greatly among seven cultivation substrates and correlated with measurements in Cyclocybe cylindracea mushrooms; no such correlation was established in Pleurotus ostreatus . Reduction of hemicellulose, cellulose, and lignin in substrates during P. ostreatus cultivation was positively correlated with REE concentrations, which also affected the production performance depending on the species examined. In all cases, a negative correlation was established between bioconcentration factors (BCF) in mushrooms and REE content in substrates, while the effect of substrate composition on BCF values varied according to the element studied. The estimated daily intake values of REEs through mushroom consumption was at much lower levels than those reported as potentially harmful for human health. CONCLUSION The content of REEs in cultivation substrates and in mushrooms revealed that the bioaccumulation of elements differed in each fungus. The nature/origin of substrates seemed to affect the concentration of REEs in mushrooms to a considerable extent. © 2018 Society of Chemical Industry