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Title

Mineral elements content of wild growing edible mushrooms from the southeast of Spain

AuthorsHaro, Ana; Trescastro, Antonio; Lara Escribano, Luis; Fernández Figares, I.; Nieto Liñán, Rosa María; Seiquer Gómez-Pavón, Isabel
KeywordsMushrooms
Macro minerals
Trace elements
Food analysis
Food composition
Issue Date2020
PublisherElsevier
CitationJournal of Food Composition and Analysis 91 (2020) 103504
AbstractWild-growing mushrooms could be a potential source of mineral elements The aim of this study was to analyze the mineral composition of 18 species of wild-growing mushrooms collected in a natural park from the Spanish southeast (province of Granada). Ca, Mg, K, Na, Fe, Cu and Zn, were determined by flame atomic absorption spectroscopy and P was analyzed colorimetrically by the vanadomolybdate procedure; the accuracy of methods was assessed by the use of certified reference materials. The contribution of mushrooms consumption to the mineral daily recommended intakes was calculated. Although large variations were observed between species, the most abundant mineral elements in the analyzed mushrooms were K and P, with average contents of 29.3 ± 8.1 and 8.60 ± 4.8 g/kg dry matter (dm), respectively. Low Na concentrations were observed (26.5–579 mg/kg dm), with the only exception of Amanita ovoidea, and high Fe values, exceeding in some cases 1000 mg/kg dm (such as in Lactarius deliciosus and Morchella conica). Mushrooms may be significant contributors of K and P in the human diet and also good sources of trace elements, especially Cu and Fe, providing negligible quantities of Na. Strong correlations were observed for Ca/Mg and Cu/Zn contents in the mushrooms analyzed.
Publisher version (URL)http://dx.doi.org/10.1016/j.jfca.2020.103504
URIhttp://hdl.handle.net/10261/216361
Identifiersdoi: 10.1016/j.jfca.2020.103504
issn: 0889-1575
Appears in Collections:(EEZ) Artículos
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