Author/Editor     Šlejkovec, Zdenka; van Elteren, Johannes T; Woroniecka, Urszula D; Kroon, Koos J; Falnoga, Ingrid; Byrne, Anthony R
Title     Preliminary study on the determination of selenium compounds in some selenium-accumulating mushrooms
Type     članek
Source     Biol Trace Elem Res
Vol. and No.     Letnik 75
Publication year     2000
Volume     str. 139-55
Language     eng
Abstract     Using various chromatographic techniques (size exclusion, anion exchange, and cation exchange) combined with several detectors (neutron activation analysis and atomic fluorescence spectrometry), an attempt was made to characterize selenium compounds in some edible, selenium-accumulating mushrooms (Albatrellus pes-caprae and Boletus edulis). The mushrooms contained mostly low-molecular-weight (6 kDa) selenium compounds. After proteolysis, only a small fraction of the extractable selenium could be identified as selenite (3.0-9.2%, Albatrellus pes-caprae), selenocystine (minor, Albatrellus pes-caprae; 7.5%, Boletus edulis), or selenomethionine (1.0%, Boletus edulis), leaving the form of the bulk still to be elucidated.
Descriptors     BASIDIOMYCETES
SELENIUM
SELENIUM COMPOUNDS
ORGANOSELENIUM COMPOUNDS
SELENOMETHIONINE
CHROMATOGRAPHY, GEL
CHROMATOGRAPHY, HIGH PRESSURE LIQUID
CHROMATOGRAPHY, ION EXCHANGE
CYSTINE
HYDROGEN-ION CONCENTRATION
NEUTRON ACTIVATION ANALYSIS
SODIUM SELENITE
SPECTROPHOTOMETRY, ULTRAVIOLET