Holz als Roh- und Werkstoff

, Volume 52, Issue 1, pp 28–32 | Cite as

Bioassaying combinations of wood preservatives and tannins withPoria placenta andAspergillus niger

  • H. Militz
  • W. J. Homan
Originals

Abstract

With “new” preservatives it is convenient to be able to screen their efficacy before time consuming and expensive fungi tests are carried out. For a fast screening of preservatives, combined with natural and synthetical tannins, two screening tests withAspergillus andPoria, respectively, had been used. The results had been compared with soil block tests. With both screening tests, reproducible and distinctive results are given even after a couple of days. However, the comparison with the soil block test showed, that the result from the screening tests are not reliable for a later use of timber in soil contact.

Keywords

Tannin Aspergillus Niger Boric Acid Screen Test Wood Preservative 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Biologischer Schnelltest zur Beurteilung der Wirksamkeitvon Holszchutzmittel-Kombinationen mit Tanninen gegenüber Poria placenta und Aspergillus niger

Zusammenfassung

Zur schnellen Beuteilung der Wirksamkeit neuer Holzschutzmittel können sogenannte Screening-Tests hilfreich sein. In der hier beschriebenen Arbeit wurden Holzschutzmittel, die mit natürlichen oder synthetischen Tanninen kombiniert wurden, mit Hilfe von zwei solcher Screening-Tests mitAspergillus undPoria beurteilt. Die Resultate dieser Schnelltests wurden mit denen von Pilztests im Schwammkeller verglichen. Die Versuche zeigten, daß beide Schnelltest in kürzester Zeit zu reproduzierbaren Resultaten mit hohem Unterscheidungsvermögen führten. Der Vergleich mit den Ergebnissen aus dem Schwammkeller zeigte jedoch, daß sich mit Hilfe der Schnelltests die Holzschutzwirkung im bodenkontakt nicht mit ausreichender Genauigkeit beurteilen läßt.

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References

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • H. Militz
    • 1
  • W. J. Homan
    • 1
  1. 1.Foundation for Timber Research SHRMaarssenThe Netherlands

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