Py-GC/MS analysis results of the identification and relative molar abundance (%) of commercial organosolv lignin and lignin recovery.

Label	Compound	Origin	COL	BGL
1	Guaiacol	G	15.2	18.9
2	Phenol	H	4.5	7.3
3	4-Propylguaiacol	G	0.3	0.4
4	3-Methylphenol	H	0.71	0.59
5	4-Methylphenol	H	1.8	2.1
6	2-Methylphenol	H	0.5	0.4
7	4-Ethyl phenol	H	3.6	14.2
8	4-Methylguaiacol	G	5.2	8.6
9	4-Ethylguaiacol	G	2.12	3.53
10	3-Methoxyphenol	H	2.32	4.5
11	4-Vinylguaiacol	G/FA	17.9	5.8
12	4-Vinylphenol	H/PCA	17.1	8.1
13	Syringol	S	13.5	17.2
14	Syringyl vinyl ketone	S	0.9	0.5
15	trans-Isoeugenol	G	1.2	1.2
16	4-Allylguaiacol	G	0.9	0.8
17	4-Ethylsyringol	S	1.7	1.3
18	Acetosyringone	S	2.5	1.4
19	Syringaldehyde	S	1.2	1
20	Syringylacetone	S	0.8	1.4
21	Propiosyringone	S	1.37	0.24
22	Vanillin	G	0.8	1.6
23	Eugenol	G	0.3	0.5
24	Homosyringaldehyde	S	0.12	0.15
25	Syringic acid	S	1.98	0.47
26	Dihydroconiferyl alcohol	G	0.5	0.86
27	trans-Sinapaldehyde	S	0.98	0.26
28	Hexadecanoic acid, ethyl ester	FA	0.95	0.72
29	p-Coumaric acid ethyl ester	PCA	1.06	0.6
30	Ferulic acid ethyl ester	FA	0.37	0.98
		%Ha	30.5	32.6
		%Sa	25.0	25.1
		%Ga	44.4	42.1
		S/Ga	0.56	0.60

^aCalculated by using all the H: p-hydroxyphenyl units; G: guaiacyl units and S: syringyl units; -lignin derived products.