Mushrooms traded as food. Vol II sec. 1

Nordic Risk assessments and background on edible mushrooms, suitable for commercial marketing and background lists. For industry, trade and food inspection. Background information and guidance lists on mushrooms

image of Mushrooms traded as food. Vol II sec. 1

Mushrooms recognised as edible have been collected and cultivated for many years. In the Nordic countries, the interest for eating mushrooms has increased. In order to ensure that Nordic consumers will be supplied with safe and well characterised, edible mushrooms on the market, this publication aims at providing tools for the in-house control of actors producing and trading mushroom products. The report is divided into two documents: a. Volume I: ”Mushrooms traded as food - Nordic questionnaire and guidance list for edible mushrooms suitable for commercial marketing b. Volume II: Background information, with general information in section 1 and in section 2, risk assessments of more than 100 mushroom species (be published august / september). All mushrooms on the lists have been risk assessed regarding their safe use as food, in particular focusing on their potential content of inherent toxicants. The goal is food safety.



Hypersensitivity: worker's disease and respiratory allergy

A condition now known as mushroom grower’s disease and characterized by allergic rhinoconjunctivitis, asthma, and hypersensitivity pneumonitis (Lehrer et al., 1994; Saikai et al., 2002; Helbling et al., 1999; Mori et al., 1998), was first described by Bringhurst et al. (1959) among workers at a mushroom farm in Pennsylvania, United States. In the initial studies, Bringhurst, co-workers and other investigators focused on the most frequently appearing effects giving respiratory symptoms (mushroom worker’s lung), describing symptoms like dyspnea, cough, chills, fever, and muscle pain appearing 5-8 hours after exposure (Sakula, 1967; Craig and Donevan, 1970; Jackson and Welch, 1970; Chan-Yeung et al., 1972; Locky, 1974; Stewart, 1974; Sanderson et al., 1992). No conclusive cause of the condition was identified, but inhaled organic antigens such as thermo-tolerant fungi and actinomycetes in dried grass/hay and micro-organisms in the compost, spawning components, animal and plant proteins, and possibly spores were suggested as causative agents. Sanderson et al. (1992) analysed sera from 227 mushroom workers cultivating Agaricus bisporus and identified precipitin reactions mainly in subjects exposed to compost and substrates and spores. The other symptoms of the disease soon became equally important.


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