Also to be considered, on the other hand, is
erythrose pigmentaire peribuccale of Brocq, which is a disorder of uncertain nature, but which could be a variety of perioral dermatitis as considered below [12,13] (Figure 5).
Lignin was converted, in good yield, to brown viscous oil in supercritical water (Pd on C catalyst and a H2) [31], sugi wood gave mostly water-soluble saccharides [32], more exactly oligosaccharides, glucose, fructose, methylglyoxal, glycolaldehyde, dihydroxyacetone,
erythrose, levoglucosan and 5-hydroxymethyl furfural [33], most of the residue consisted of products of lignin origin [32].