Table 2.

Chemical composition of PA used in the current study

Compound	Wt%
Water	45
Sugars**	16
Pyrolytic lignin	9
Acids*	7.5
Catechol	5.6
Methylguaiacol	1.9
Guaiacol	1.5
Methylisopropylcyclohexanone	1.5
Methylcatechol	1.2
Cresol	0.9
Furanone	0.8
Acetyloxycatechol	0.8
Ethylguaiacol	0.6
Hydroquinone	0.6
Propenylcatechol	0.6
Phenol	0.5
Triacetin	0.5
Acetyloxymethylfuraldehyde	0.5
Acetyldihydrofuranone	0.5
Maltol	0.5
Trimethylbenzenediol	0.5
Dimethoxybenzenebutyric acid	0.5
Dioxolane	0.4
Hexenone	0.4
Vanillin	0.4
Dimethylbenzenediol	0.4
Hydroxymethoxyphenylpropanone	0.4
Dimethylphenol	0.3
Eugenol	0.3
Dihydroxybenzenepropanone	0.2
Dihydroxyoctadienedione	0.1
Hydroxymethylcinnamaldehyde	0.1
Total	100

*Mainly formic, acetic, and propionic acids

**Anhydro sugars, mainly levoglucosan