Analyses of wood from the Swedish warship Vasa revealed a complex chemical composition with increased acidity and depolymerisation of hemicellulose and polyethylene glycol (PEG). Pronounced depolymerisation and acidity were found in ferriferous segments below the surface region with high iron-sulfur-ratios. Decomposition products such as low molecular acids, xylan and PEG oligomers were identified by NMR and MALDI-TOF mass spectrometry in aqueous wood extracts. The concentrations of low molecular acids (formic, glycolic and oxalic) were enhanced compared to unconserved waterlogged wood and recent oak. The highest concentration of formic acid was found at sites with PEG depolymerisation shown by changes in the molecular weight distribution (...
The Oseberg collection includes the most complete ensemble of wooden remains from the Viking Age. Ho...
Fenton reaction is thought to play an important role in wood degradation by brown-rot fungi. In this...
Reduced iron and sulfur species accumulated within waterlogged archaeological wood artefacts during ...
Analyses of wood from the Swedish warship Vasa revealed a complex chemical composition with increase...
Analyses of wood from the Swedish warship Vasa revealed a complex chemical composition with increase...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
Synchrotron-based sulfur spectroscopy reveals a common concern for marine archaeological wood from s...
In 1628, the Swedish warship <i>Vasa</i> capsized on her maiden voyage and sank in the Stockholm har...
Alum-treated archaeological woods from the Oseberg collection, excavated and treated in the early 19...
In 2008 the rostrum from an ancient warship was recovered from the Mediterranean near Acqualadrone, ...
In 2008 the rostrum from an ancient warship was recovered from the Mediterranean near Acqualadrone, ...
Alum-treated archaeological woods from the Oseberg collection, excavated and treated in the early 19...
The Oseberg collection includes the most complete ensemble of wooden remains from the Viking Age. Ho...
Fenton reaction is thought to play an important role in wood degradation by brown-rot fungi. In this...
Reduced iron and sulfur species accumulated within waterlogged archaeological wood artefacts during ...
Analyses of wood from the Swedish warship Vasa revealed a complex chemical composition with increase...
Analyses of wood from the Swedish warship Vasa revealed a complex chemical composition with increase...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
The oak wood of the 17th century warship Vasa has shown significant changes in the chemical and mech...
Synchrotron-based sulfur spectroscopy reveals a common concern for marine archaeological wood from s...
In 1628, the Swedish warship <i>Vasa</i> capsized on her maiden voyage and sank in the Stockholm har...
Alum-treated archaeological woods from the Oseberg collection, excavated and treated in the early 19...
In 2008 the rostrum from an ancient warship was recovered from the Mediterranean near Acqualadrone, ...
In 2008 the rostrum from an ancient warship was recovered from the Mediterranean near Acqualadrone, ...
Alum-treated archaeological woods from the Oseberg collection, excavated and treated in the early 19...
The Oseberg collection includes the most complete ensemble of wooden remains from the Viking Age. Ho...
Fenton reaction is thought to play an important role in wood degradation by brown-rot fungi. In this...
Reduced iron and sulfur species accumulated within waterlogged archaeological wood artefacts during ...