2.5. Sun protection factor determination
The sun protection factor was calculated based on the spectrophotometric method proposed by Mansur et al. (1986).
2.6. Statistical analyses
The characteristics of wax content; oil content and sun protection factor were statistically analyzed as a randomized design with the species as the main effect and plants as secondary effect, three replicates per plant. Each selection of C. liberica was considered one treatment.
A mixture of the oil extracted from plants of each specie investigated was analyzed for fatty acid composition and unsaponifiable matter content in a randomized design experiment, with samples in duplicate. Means were compared using the Tukey test at the 1% level of probability.