Gas chromotographic procedures were used to compare commercial diesel fuel with cyclohexane, ether, and methanol extracts from various tree species. Standard n-paraffin hydrocarbons ranging from C-10 thru C-34 were used as standards. These analyses indicated that several extracts, notably those from Juniper virginiana (juniper) and Pinus echinata (pine) trees of Northeast Arkansas and the Brazilian tree Copaifera langsdorffii (copaiba), contain numerous hydrocarbon and selected chemical products which serve as potential renewable biocrude sources.
Gehring, Roy Z. and Johnson, Bob D.
"Gas Chromortographic Analyses of Biocrude-Producing Trees,"
Journal of the Arkansas Academy of Science: Vol. 38
, Article 12.
Available at: http://scholarworks.uark.edu/jaas/vol38/iss1/12