Chemical composition and oxidative stability of jussara ( Euterpe edulis M.) oil extracted by cold and hot mechanical pressing

The aim of this work was to evaluate the effect of mechanical pressing on jussara oil yield, oxidative stability and carotenoid profile with or without heat application. Firstly, jussara pulp was centrifuged for juice extraction, and the resulting cake was dried until reaching 10% moisture content. Then, oil extraction was performed in an expeller press at 25 oC (cold pressing) and at 50 oC (hot pressing). The process performance was evaluated by the oil yield, and the crude jussara oil was characterized for fatty acid composition, acid value, carotenoid profile and oxidative stability. Jussara oil contained 74% unsaturated fatty acids, mainly oleic and linoleic acids (48% and 24%, respectively). The oil yield was almost twice as high for the hot process as compared to the cold one. Additionally, hot pressing resulted in 25% higher total carotenoid content as compared to cold pressing, with β-carotene as the most abundant one. Hot and cold pressing showed no difference in oil oxidative stability and fatty acid composition.

[1]  Rintu Banerjee,et al.  Green solvents and technologies for oil extraction from oilseeds , 2017, Chemistry Central Journal.

[2]  P. Speranza,et al.  Amazonian Buriti oil: chemical characterization and antioxidant potential , 2016 .

[3]  M. Hammami,et al.  Characterization of fig achenes' oil of Ficus carica grown in Tunisia. , 2016, Food chemistry.

[4]  A. Torres,et al.  Antioxidant capacity is a surrogate measure of the quality and stability of vegetable oils , 2016 .

[5]  S. Favaro,et al.  Good practices of harvest and processing provide high quality Macauba pulp oil , 2015 .

[6]  G. Borges,et al.  Chemical composition, bioactive compounds and antioxidant capacity of juçara fruit (Euterpe edulis Martius) during ripening , 2015 .

[7]  L. Cabral,et al.  Avocado (Persea americana Mill.) oil produced by microwave drying and expeller pressing exhibits low acidity and high oxidative stability , 2015 .

[8]  N. Jorge,et al.  Bioactive compounds of the lipid fractions of agro-industrial waste , 2014 .

[9]  S. Báo,et al.  Oil rich in carotenoids instead of vitamins C and E as a better option to reduce doxorubicin-induced damage to normal cells of Ehrlich tumor-bearing mice: hematological, toxicological and histopathological evaluations. , 2014, The Journal of nutritional biochemistry.

[10]  Tetsuya Araki,et al.  Yield and physicochemical properties of mechanically extracted crude Jatropha curcas L oil , 2012 .

[11]  M. Coelho,et al.  Production of concentrated natural beta-carotene from buriti (Mauritia vinifera) oil by enzymatic hydrolysis , 2012 .

[12]  Tânia Lúcia Montenegro Stamford,et al.  Processamento de biscoitos adicionados de óleo de buriti(Mauritia flexuosa L): uma alternativa para o consumo de alimentos fontes de vitamina A na merenda escolar , 2012 .

[13]  T. R. Riul,et al.  Influence of the extraction method and storage time on the physicochemical properties and carotenoid levels of pequi (Caryocar brasiliense Camb.) oil , 2012 .

[14]  D. Mcclements,et al.  Minor Components in Food Oils: A Critical Review of their Roles on Lipid Oxidation Chemistry in Bulk Oils and Emulsions , 2011, Critical reviews in food science and nutrition.

[15]  R. Zambiazi,et al.  Chemical characterization, bioactive compounds, and antioxidant capacity of jussara (Euterpe edulis) fruit from the Atlantic Forest in southern Brazil , 2011 .

[16]  A. Faaij,et al.  Different palm oil production systems for energy purposes and their greenhouse gas implications , 2008 .

[17]  L. H. van den Berg,et al.  Intake of polyunsaturated fatty acids and vitamin E reduces the risk of developing amyotrophic lateral sclerosis , 2006, Journal of Neurology, Neurosurgery & Psychiatry.

[18]  D. Rodriguez-Amaya,et al.  A scheme for obtaining standards and HPLC quantification of leafy vegetable carotenoids , 2002 .

[19]  J. Woodside,et al.  Antioxidants in health and disease , 2001, Journal of clinical pathology.

[20]  E. Méndez,et al.  Validation of the rancimat test for the assessment of the relative stability of fish oils , 1996 .

[21]  M. E. Araújo,et al.  Supercritical CO2 extraction of açaí (Euterpe oleracea) berry oil: Global yield, fatty acids, allelopathic activities, and determination of phenolic and anthocyanins total compounds in the residual pulp , 2016 .

[22]  Eugène Vorobiev,et al.  Mechanical Continuous Oil Expression from Oilseeds: A Review , 2012, Food and Bioprocess Technology.

[23]  Like Mao,et al.  Characterization and stability evaluation of β-carotene nanoemulsions prepared by high pressure homogenization under various emulsifying conditions , 2008 .