Mycotoxins In Indoor Environment, Their Health Effects and the Moulds Producing Them

Growth of commonly occurring moulds in foods and building materials may result in production of toxic complex secondary metabolic by-products referred to as mycotoxins. Moulds that produce mycotoxins are said to be toxigenic (or incorrectly toxic moulds). According to experts, five kinds of mycotoxins are important in human health: aflatoxins, ochratoxin A, fumonisins, certain trichothecenes […]

Troubleshooting Microbial Contamination In An Industrial Environment

Processing industries such as pharmaceutical, personal hygiene and beauty products, food (including dairy) have microbial contamination control procedures in place. Regular hygiene monitoring of a plant and equipment, and microbiological sampling of products and raw materials are invaluable in detecting potential sources and routes of contamination. Contamination especially in food industry can result to not […]

Common Building Molds and Their Hazard Classes

Building molds are common on damp materials with a water activity value equal to or greater than 0.90. Building molds and yeasts such as strains of Aspergillus fumigatus, Trichoderma spp., Exophiala spp., Stachybotrys spp., Phialophora spp., Fusarium spp., Ulocladium spp., and yeasts such as Rhodotorula spp. grow well on very wet building materials. Materials with a water […]

Dampness, Mould, House Dust Mites and Allergy

The risk of asthma, allergic rhinitis, and atopic (hereditary) dermatitis is higher in damp buildings than non-damp buildings. However, dampness itself may have no or little direct effect to allergy development. Dampness only favours proliferation of biological and increased emission of chemical pollutants. A strong association has been found between exposure to visible mould and […]

The Risks of Eating Mouldy Foods

Recently we were asked the following questions: “Eating mouldy bread is discouraged. Where can I find the facts that prove this? Are there moulds that grow on bread that are harmless? Some of my patients that survived food shortages in The UK during World War II by eating mouldy bread and other foods insist that […]

Stachybotrys chartarum- A Black Mould Of Many Controversies

Stachybotrys chartarum, also known by an old name as Stachybotrys atra, is a cellulose degrading fungus commonly found in soil and on materials rich in cellulose such as hay, straw, cereal grains, plant debris, wood pulp, paper, and cotton. It produces a mass of wet spores sticking together giving the appearance of black pin-heads. The […]

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