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Study of orange essential oil purification using membrane separation technology

Grant number: 21/11519-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): January 01, 2022
Effective date (End): December 31, 2022
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Technology
Principal researcher:Julian Martínez
Grantee:Júlia Gabriela Francisco
Home Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


Essential oils are sources of bioactive compounds that can be extracted from the orange juice-processing residue. These compounds are used in food, chemical, and pharmaceutical industries, acting as a flavoring and even anticarcinogenic. However, the industrial orange oil contains waxes that reduce its added value. Thus, the objective of this work is to remove waxes present in orange essential oil using membrane separation. Membrane technology has several advantages over conventional separation techniques, as it separates compounds according to molecular size, without solvent phase change, with solvent recycling, low temperatures, and low energy consumption. Two types of micro and ultrafiltration membranes will be studied: MV020, MP005, UP150, and UV150. First, the tests will be performed under constant temperature and pressure conditions. Then, the effects of temperature and pressure with the best separation performance membrane will be analyzed. Finally, a cost analysis of the method will be done in comparison to the conventional separation process used by the industry.(AU)

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