Simultaneous extraction of sunflower oil and active compounds from olive leaves using pressurized propane

Autor(es)

Jaski, Jonas Marcelo ; Barbosa Abrantes, Karen Keli ; Zanqui, Ana Beatriz ; Stevanato, Natalia ; da Silva, Camila ; Barao, Carlos Eduardo ; Bonfim-Rocha, Lucas ; Cardozo-Filho, Lucio

• Tipo de documento: Artigo Científico
• Fonte: CURRENT RESEARCH IN FOOD SCIENCE; v. 5, p. 14-pg., 2022-01-01.

Resumo

Sunflower is grown in different parts of the world and oil from the grain has many uses, including cosmetics and food. Olive leaves are rich in active compounds with potential for industrial use. The simultaneous extraction of raw materials is an economical and sustainable way of using the same extraction process to obtain products with high added value. The aim of this work was to promote the incorporation of bioactive compounds from olive leaves in sunflower oil by two extraction techniques: pressurized propane (PRO) and Soxhlet (SOX) and to evaluate the increase in oxidative stability and antioxidant activity of oils. The techniques used were useful in producing sunflower oil incorporating olive leaf extract (SFO + OLE); 4.3% 1-octacosanol and 5.8% 1-triaconta-nol were incorporated, and beta-sitosterol increased by at least 90%. Also, SFO + OLE showed an increase in the induction time of 2.7 and 3.7 h compared to SFO for the PRO and SOX methods, respectively. The profile of fatty acids was maintained, with the majority in all samples being oleic and linoleic acids. Consequently, with this procedure is possible to produce SFO + OLE with better antioxidant activity and better nutritional characteristics using PRO and SOX. The scaled-up of the simultaneous extraction process via pressurized propane is economically viable according to the process simulation and economic evaluation. (AU)

• Processo FAPESP: 17/03614-0 - Valorização da Olivicultura na Região da Serra da Mantiqueira Empregando Tecnologias Verdes
• Beneficiário: Lúcio Cardozo Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular