TAverage DSC profiles were used to define boundaries for the
thermal mass loss (TG) attributed to the putatively cellulosic mate-rial (labile carbon which we recognise may also include a small
component of aliphatic compounds as simple lipids and amino
acids, consequently associated with the most easily-degradable
fraction of the organic matter), putatively ligninic material (refrac-tory carbon including aromatic compounds or other polyphenols,
distinctive of a more humified and stable fraction of the organic
matter), and the fixed solids (residual mass component)
(Fernandez et al., 2012)(Fig. 3).