Abstract Wild-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.

中文翻译：

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西班牙东南部野生食用菌矿物元素含量

摘要 野生蘑菇可能是矿物元素的潜在来源 本研究的目的是分析从西班牙东南部（格拉纳达省）的一个自然公园收集的 18 种野生蘑菇的矿物质成分。Ca、Mg、K、Na、Fe、Cu 和 Zn 通过火焰原子吸收光谱法测定，P 通过钒钼酸盐法进行比色分析；方法的准确性通过使用经认证的参考材料进行评估。计算了蘑菇消耗对每日矿物质推荐摄入量的贡献。尽管在物种之间观察到很大差异，但分析的蘑菇中最丰富的矿物元素是 K 和 P，平均含量分别为 29.3 ± 8.1 和 8.60 ± 4.8 g/kg 干物质 (dm)。观察到低 Na 浓度 (26. 5–579 mg/kg dm)，唯一的例外是鹅膏菌，以及高铁值，在某些情况下超过 1000 mg/kg dm（例如在 Lactarius deliciosus 和 Morchella conica）。蘑菇可能是人类饮食中钾和磷的重要贡献者，也是微量元素的良好来源，尤其是铜和铁，提供的钠含量可以忽略不计。在分析的蘑菇中观察到 Ca/Mg 和 Cu/Zn 含量的强相关性。