Response of Pleurotus ostreatus to cadmium exposure

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · Ecotoxicology and Environmental Safety; (USA)

DOI:https://doi.org/10.1016/0147-6513(90)90039-8· OSTI ID:6269029

Favero, N; Bressa, G; Costa, P ^[1]

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1. Univ. of Padua (Italy)

The possibility of utilizing agroindustrial wastes in the production of edible, high-quality products (e.g., mushrooms) implies the risk of bringing toxic substances, such as heavy metals, into the human food chain. Thus, growth in the presence of cadmium and cadmium accumulation limits have been studied in the industrially cultivated fungus P. ostreatus. Fruit body production is substantially unaffected in the presence of 25, 139, and 285 mg Cd/kg of dried substrate. Cadmium concentration in fruit bodies is related to cadmium substrate level, the metal being present at higher levels in caps (22-56 mg/kg dry wt) than in stems (13-36 mg/kg dry wt). Concentration factor (CF), very low in the controls (about 2), further decreases in treated specimens. The presence of a cadmium control mechanism in this fungi species is suggested. Fruit body cadmium levels could, however, represent a risk for P. ostreatus consumers, according to FAO/WHO limits related to weekly cadmium intake.

• OSTI ID: 6269029
• Journal Information: Ecotoxicology and Environmental Safety; (USA), Vol. 20:1; ISSN 0147-6513
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CADMIUM
BIOLOGICAL ACCUMULATION
FOOD CHAINS
CONTAMINATION
MUSHROOMS
MAXIMUM PERMISSIBLE EXPOSURE
METABOLISM
ELEMENTS
FUNGI
METALS
PLANTS
SAFETY STANDARDS
STANDARDS
560300* - Chemicals Metabolism & Toxicology