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06:48
A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
Fourier-transform Raman spectroscopic study of a Neolithic waterlogged wood assemblage
M Petrou1, H G M Edwards, R C Janaway
1Hellenic Ministry of Culture, Directorate of Conservation of Ancient and Modern Monuments, Dept. of Applied Research, Peiraiws 81, Athens 10553, Greece. petroumar@yahoo.gr
Analytical and Bioanalytical Chemistry
|October 17, 2009
Summary
Fourier-transform Raman spectroscopy revealed significant biodeterioration in archaeological wood. Carbohydrates degraded more than lignin, indicating extensive damage to Pinus and Quercus timbers.
Area of Science:
- Analytical Chemistry
- Archaeometry
- Wood Science
Background:
- Fourier-transform Raman spectroscopy (FT-Raman) is increasingly used for lignocellulosic material characterization.
- Waterlogged archaeological wood presents unique challenges for chemical analysis due to degradation.
- Understanding wood biodeterioration is crucial for conservation and historical research.
Observation:
- FT-Raman spectra of biodeteriorated Pinus sp. and Quercus sp. archaeological wood were analyzed.
- Spectra were compared to those of sound wood from the same species.
- Spectral features indicated changes in lignin and carbohydrate polymer chemistry.
Findings:
- Biodeterioration in archaeological wood was associated with the depletion of lignin and carbohydrate polymers.
- Both softwood (Pinus) and hardwood (Quercus) samples showed extensive deterioration.
- Carbohydrates, including cellulose and hemicellulose, were found to be more deteriorated than lignin.
Implications:
- The study elucidates the chemical changes occurring during the biodeterioration of waterlogged archaeological wood.
- FT-Raman spectroscopy proves effective in assessing the extent and pattern of wood decay.
- Findings inform conservation strategies for preserving ancient wooden artifacts.
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