Peitzsch Mirko, Bloom Erica, Haase Rocco, Must Aime, Larsson Lennart
Lund University, Department of Laboratory Medicine, Division of Medical Microbiology, Sölvegatan 23, SE-22362 Lund, Sweden.
J Environ Monit. 2012 Mar;14(3):908-15. doi: 10.1039/c2em10806b. Epub 2012 Jan 30.
We compared the efficiency of some commercially available products and methods used for remediation of mould-contaminated building materials. Samples of gypsum board and pinewood were artificially contaminated with toxin-producing isolates of Stachybotrys chartarum and Aspergillus versicolor, respectively, then, ten different remediation treatments were applied according to the manufacturers' instructions. Microbial and chemical analyses of the infested materials were carried out both immediately before and after treatment, after six weeks of drying at room temperature, and after another six weeks of remoistening. The aim of the study was to determine whether the investigated methods could inhibit the mould growth and destroy some selected mycotoxins produced by the moulds. None of the decontamination methods tested could completely eliminate viable moulds. Some methods, especially boron based chemicals, ammonium based chemicals, and oxidation reduced the contents of mycotoxins produced by S. chartarum (satratoxin G and H, verrucarol), whereas the one which uses an ammonium based chemical reduced the amount of sterigmatocystin produced by A. versicolor with statistical significance. No remediation treatment eliminated all the toxins from the damaged materials. These results emphasize the importance to work preventively with moisture safety throughout the construction processes and management to prevent mould growth on building materials.
我们比较了一些市售产品和用于修复受霉菌污染建筑材料的方法的效率。石膏板和松木样本分别被产毒素的chartarum葡萄穗霉和杂色曲霉分离株人工污染，然后，根据制造商的说明应用了十种不同的修复处理方法。在处理前后、室温干燥六周后以及再次湿润六周后，对受侵染材料进行了微生物和化学分析。该研究的目的是确定所研究的方法是否能够抑制霉菌生长并破坏霉菌产生的一些选定的霉菌毒素。所测试的去污方法均不能完全消除活霉菌。一些方法，特别是硼基化学品、铵基化学品和氧化作用降低了chartarum葡萄穗霉产生的霉菌毒素（satratoxin G和H、疣孢菌素）的含量，而使用铵基化学品的方法在统计学上显著降低了杂色曲霉产生的柄曲霉素含量。没有一种修复处理能从受损材料中消除所有毒素。这些结果强调了在整个施工过程和管理中预防性地处理湿度安全以防止建筑材料上霉菌生长的重要性。
