Chemical, chromatographic-functional, thermogravimetric-differential and spectroscopic parameters of the sapucaia oil obtained by different extraction methods

• Published in: Industrial crops and products Vol. 132; pp. 487 - 496
• Main Authors: Santos, Orquidea Vasconcelos dos, Carvalho, Raul Nunes, Costa, Carlos Emmerson Ferreira da, Lannes, Suzana Caetano da Silva
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2019
• Subjects: Fatty acid profile; Oil; Sapucaia; Sapucaia; Fatty acid profile; Oil
• ISSN: 0926-6690; 1872-633X
• DOI: 10.1016/j.indcrop.2019.02.043

[Display omitted] The extraction method affects the thermal stability of the oil, such as air atmosphere and the progressive temperature increase up to 800 °C. The sapucaia oil extracted using CO2 had higher thermal stability, regardless of the pressure applied. •The extraction with supercritical CO2 was more efficient than the extraction with solvents.•The sapucaia oil is suitability for use in various industry segments and for human consumption.•The extraction methods used can cause important nutritional changes in the oil composition. Sapucaia (Lecythis pisonis Camb.), a species native to that region, has tasty almonds with high energy density. The objective of this study was to investigate the lipid profile of sapucaia almonds. Thus, the oil of this oleaginous oilseed was obtained by different extraction methods and subjected to physicochemical analysis to determine its quality standard, nutritional and functional quality based on its fatty acid profile, thermogravimetric and oxidative behaviors, and infrared spectroscopic pattern using Fourier Transform Infrared Spectroscopy (FTIR). The results showed an average oil yield of 57.50% when obtained via solvents (soxhlet), and 58.47% for the oil obtained via supercritical CO2 at 300 bar, 57.81% at 350 bar, and 63.86% at 400 bar, indicating feasibility for commercial use. The high quality standard found is within the standards established by Brazilian law. The fatty acid profile indicates it is rich in unsaturated fatty acids, especially the omega families, which help prevent cardiovascular disease. Infrared spectroscopy showed bands characteristics of long-chain fatty acids confirming the chromatographic results. Based on these analyses, it was found that this species has great potential application in various industrial segments.