Bacaba-de-leque (Oenocarpus distichus Mart.) oil extraction using supercritical CO2 and bioactive compounds determination in the residual pulp

• Published in: The Journal of supercritical fluids 2019-02, Vol.144, p.81-90
• Main Authors: Cunha, Vânia Maria Borges, Silva, Marcilene Paiva da, Sousa, Sérgio Henrique Brabo de, Bezerra, Priscila do Nascimento, Menezes, Eduardo Gama Ortiz, Silva, Nayara Janaina Neves da, Banna, Débora Ariane Dornelas da Silva, Araújo, Marilena Emmi, Carvalho Junior, Raul Nunes de
• Format: Article
• Language: English
• Subjects: Bioactive compounds; Functional quality; Oenocarpus distichus; Supercritical fluid extraction; Vegetable oil
• ISSN: 0896-8446; 1872-8162
• DOI: 10.1016/j.supflu.2018.10.010

[Display omitted] •The highest yield of bacaba-de-leque oil was 45.90% obtained at 60 °C/270 bar.•Oil was predominantly characterized by unsaturated fatty acids (UFA ≅ 79%).•The residual pulp was concentrated in bioactive compounds after extraction.•There was an increase in antioxidant capacity of the residual pulp after extraction. Oenocarpus distichus is a native palm from Brazilian Amazon biomes, its fruits are sources of bioactive compounds and, mainly, vegetable oil rich in unsaturated fatty acids. In this study, the supercritical CO2 (ScCO2) extraction was applied to obtain the bacaba-de-leque pulp oil, evaluating its composition and the bioactive compounds contents present in the pulp before and after the extraction. The maximum oil yields were reached at 50 °C/350 bar (45.23%) and 60 °C/270 bar (45.90%). The oleic, palmitic, and linoleic acids, as well as the predicted triglycerides OLiO, PLiO, OOO, POP, and POO were predominant in the oil composition, independent of the extraction conditions, and presented excellent functional quality. There was an increase in phenolic compounds, total anthocyanins contents, and antioxidant capacity of the bacaba-de-leque pulp extracts after the ScCO2 extraction, showing possible applications for nutraceutical purposes.