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Table 3 Wet chemical analysis results expressed as percentage of oven-dry wood mass (mean ± standard deviation)

From: Oak wood degradation processes induced by the burial environment in the archaeological site of Biskupin (Poland)

Burial period (years)Burial placeHolocellulose %aCellulose %Lignin %Extractives %Ash %
0Reference69.938.5 ± 0.225.5 ± 0.23.5 ± 0.11.1 ± 0.1
2SP170.136.1 ± 0.426.4 ± 0.52.4 ± 0.11.1 ± 0.1
470.336.9 ± 0.526.5 ± 0.31.8 ± 0.11.4 ± 0.1
670.437.5 ± 0.326.0 ± 0.22.1 ± 0.81.5 ± 0.1
864.838.5 ± 0.231.9 ± 0.21.8 ± 0.11.5 ± 0.1
1065.237.5 ± 0.231.1 ± 0.81.9 ± 0.31.8 ± 0.1
2SP467.936.3 ± 0.228.4 ± 0.52.6 ± 0.11.1 ± 0.1
468.337.1 ± 0.527.9 ± 0.52.5 ± 0.11.3 ± 0.1
668.138.3 ± 0.227.8 ± 0.22.0 ± 0,81.3 ± 0.1
865.239.8 ± 0.331.8 ± 0.31.8 ± 0.01.2 ± 0.1
1065.938.9 ± 0.331.1 ± 0.51.5 ± 0.01.5 ± 0.1
  1. aThe standard deviation is not reported, as these values are calculated as a subtraction and are not obtained from an actual measurement