Biodeterioration is a terminology used to describe any undesirable change in the properties of a material caused by the vital activities of organisms. Fungal growth requires suitable temperature, moisture and air (oxygen). Fungi are heterotrophs that acquire nutrients by absorption. They secrete hydrolytic enzymes (exoenzymes) and acids to decompose complex molecules into simpler ones that can be absorbed and used as nutrients. Hence, they are believed to be potential contributors … [Read more...]
Common Molds In Historic Buildings
September 7, 2008 by
Old, dusty and damp historic buildings provide perfect conditions for mold growth. In such buildings mold will be found growing on wall surfaces, the ceiling and on interior decorations. Before any restoration work, it's important to conduct a microbiological investigation to document the types of microorganisms present and their quantities. Some of the common molds in historic buildings include: Aspergillus niger Aspergillus flavus Aureobasidium pullulans Chaetomium … [Read more...]
