Table 9.

Fermentation metabolites of (A) L. gasseri and (B) L. plantarum upon growth on pure cellobiose, birch and spruce COS-rich hydrolysates

(A)
	L. gasseri
	Cellobiose		Birch		Spruce
	0 h	26 h	0 h	26 h	0 h	95 h
Cellobiose	20.0 ± 1.06	9.3 ± 0.12	19.6 ± 2.04	0.0 ± 0.00	19.3 ± 0.06	19.2 ± 0.29
Lactic acid	0.33 ± 0.06	8.53 ± 0.91	0.2 ± 0.03	26.5 ± 1.52	0.2 ± 0.09	0.5 ± 0.20
Acetic acid	4.03 ± 0.21	4.07 ± 0.05	7.9 ± 1.04	8.0 ± 0.42	6.6 ± 0.19	7.2 ± 0.12
Propionic acid	0.93 ± 0.03	1.03 ± 0.12	0.8 ± 0.10	1.3 ± 0.11	0.7 ± 0.15	0.8 ± 0.01

(B)
	L. plantarum
	Cellobiose		Birch		Spruce
	0 h	26 h	0 h	26 h	0 h	95 h
Cellobiose	20.0 ± 1.51	0.2 ± 0.00	19.8 ± 1.69	0.0 ± 0.00	19.9 ± 0.76	10.8 ± 1.25
Lactic acid	0.4 ± 0.01	21.8 ± 2.85	0.3 ± 0.05	28.0 ± 2.67	0.3 ± 0.00	21.1 ± 1.67
Acetic acid	4.2 ± 0.15	3.9 ± 0.71	7.9 ± 0.92	8.4 ± 0.91	6.9 ± 0.25	8.8 ± 1.61
Propionic acid	0.9 ± 0.01	0.9 ± 0.03	0.8 ± 0.09	1.0 ± 0.04	0.6 ± 0.02	1.2 ± 0.15

No significant amounts of formic or butyric acid were detected