2.1. Copaiba Oilresin

Samples of copaiba oilresin obtained from Copaifera langsdorffii Desf. (Fabaceae: Caesalpinioideae) plant material deposited in the herbarium of the Federal University of Mato Grosso, voucher Silva, R. R. et al. 1749, were received from the Federal University of Mato Grosso and originally obtained from Juruena Valle (region: midwest, latitude: 10° 19' 05” S, longitude: 58° 21' 32” W, and height: 300 m). Chemical constituents were identified by specialists at the Department of Chemistry in the Federal University of Ceara (GC–MS QP 5050, Shimadzu, Japan). The total content of the bioactive constituents was 84.69%. The main compounds were caryophylene oxide (54.2%), β-caryophylene (6.08%), β-element (4.43%), α-cis-bergamotene (4.56%), and ar-curcumene (4.63%).