Research Article

Corecovery of Bio-Oil and Fermentable Sugars from Oil-Bearing Biomass

Table 4

Weight percent fermentable sugars (relative to weight of jatropha whole seed or jatropha shell) recovered from jatropha whole seed and jatropha shell pretreated with the cosolvent [C2mim][Ac]-MeOH at 100 and 120°C.

wt% ionic liquidJatropha whole seeda,cJatropha shellb,d
120°C100°C120°C
glucosexyloseglucosexyloseglucosexylose

45%9.1 (0.1)1.1 (0.0)10.8 (0.3)1.8 (0.1)11.2 (0.1)2.1 (0.0)
60%10.8 (0.3)2.1 (0.0)12.6 (0.3)3.1 (0.0)
70%11.7 (0.0)2.6 (0.1)12.2 (0.1)2.8 (0.1)14.2 (0.6)5.3 (0.2)
80%14.1 (0.3)4.1 (0.0) 13.3 (0.2)3.2 (0.2)17.7 (0.4)9.3 (0.0)
100%15.5 (0.3)4.0 (0.3)14.1 (0.1)3.1 (0.1)21.7 (0.7)8.7 (0.2)

The reported data are averages of at least two samples. The values in brackets are the deviations of the measured values from the mean.
Jatropha whole seed fermentable sugar values are relative to weight of jatropha whole seed.
Jatropha shell fermentable sugar values are relative to weight of jatropha shell.