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Aureobasidium pullulans is a spoilage organism, especially a deteriogenic agent of painted surfaces.

It is a commonly encountered species in wet buildings. Aureobasidium pullulans is both a soil and leaf (phylloplane) fungus. In indoor environments, it is very common on wet wood and window frames, in floor, carpet, and mattress dust, damp walls, and in humidifier water. It is occasionally found on a wide range of stored foodstuffs and cereals (such as wheat, barley and oats). Sometimes it occurs on meat in cold stores as it can grow at very low temperatures.

Aureobasidium pullulans is associated with occupational disease in wood processing. It has also been isolated from human skin and nails.

Strains of Aureobasidium pullulans are used in various standard tests for resistance to microbial degradation.

You can learn about other common mold types here.

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Dr Jackson Kung'u
Dr. Jackson Kung’u is a Microbiologist who has specialized in the field of mycology (the study of moulds and yeasts). He is a member of the Mycological Society of America. He graduated from the University of Kent at Canterbury, UK, with a Masters degree in Fungal Technology and a PhD in Microbiology. He has published several research papers in international scientific journals. Jackson has analyzed thousands of mould samples from across Canada. He also regularly teaches a course on how to recognize mould, perform effective sampling and interpret laboratory results. Jackson provides how-to advice on mould and bacteria issues. Get more information about indoor mould and bacteria at
Dr Jackson Kung'u

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