Overview
Yildiz and colleagues measured 26 elements by energy-dispersive X-ray fluorescence in one cultivated button mushroom (Agaricus bisporus) bought in Trabzon and 11 wild species collected in Trabzon province. Table 2 gives one value per species, printed as oxides (for example PbO, HgO, As2O3) although the text describes them as element contents. Cadmium was not measured.
Key numbers
- Agaricus bisporus (cultivated): lead (PbO) not detected, mercury (HgO) not detected, arsenic (As2O3) not detected (Table 2, column 12).
- Lactarius deliciosus: HgO 1075.876 mg/kg, PbO 55.077 mg/kg, As2O3 6.469 mg/kg (Table 2, column 3).
- Hebeloma sinapizans: As2O3 302.824 mg/kg (Table 2, column 4); Hygrophorus ligatus: PbO 79.918 mg/kg (Table 2, column 5).
Methods (brief)
Samples were pressed into 500 mg pellets and read on an Epsilon5 ED-XRF instrument. No drying protocol, moisture basis, detection limits, replicates, reference materials or recoveries are reported.
Evidence Fitness
Weak. One undescribed sample per species, no quality assurance, and an oxide-versus-element labelling conflict. The toxic-metal values (mercury above 1000 mg/kg, arsenic above 300 mg/kg) are implausible for edible mushrooms and are flagged in the extraction. The study measures whole mushrooms, not soup; it is a proxy for cream-of-mushroom-soup and does not support that page directly.