Biochemical analysis of the Hormoconis resinae fungal mycelium in the corrosion of aeronautical aluminium alloys

R. Araya, C. Bobadilla, R. Vera, B. M. Rosales

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Biochemical analyses of the Hormoconis resinae fungal mycelium would explain behaviour differences of corrosive and non-corrosive strains on Al and its aeronautical alloys. In previous works its aggressiveness had been studied through SEM-EDX surface analysis, electrochemical techniques and immersion testing. In this paper separation of the proteins of the mycelium produced by a non-corrosive strain and its culture along three generations was performed. Cultures were prepared in batch in the presence and absence of pure Al and AA 2024, AA 7005 and AA 7075 alloys. The mycelia grown throughout the three generations increasingly recovered usual characteristics at the third replication, included their corrosiveness on Al and its alloys previously shown by all our strains. Amongst the bio-molecule fractions isolated and analysed during this preliminary study only the proteins revealed changes with the generation grown. When this fungal strain was cultured in the presence of alloy metal sheets electrophoresis of the protean fraction was correlative with the distinct mycelia behaviour observed, including corrosiveness on Al and its alloys.

Original languageEnglish
Pages (from-to)228-236
Number of pages9
JournalRevista de Metalurgia (Madrid)
Volume43
Issue number3
StatePublished - May 2007
Externally publishedYes

Keywords

  • Aeronautic
  • Aluminium alloys
  • Biochemical analyses
  • Hormoconis resinae
  • MIC

Fingerprint

Dive into the research topics of 'Biochemical analysis of the Hormoconis resinae fungal mycelium in the corrosion of aeronautical aluminium alloys'. Together they form a unique fingerprint.

Cite this