Pressurized liquid extraction of vitamin E from Brazilian grape seed oil |
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Authors: | Dos Santos Freitas Lisiane Jacques Rosângela Assis Richter Marc François Silva Andréia Loviane da Caramão Elina Bastos |
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Institution: | Instituto de Química, UFRGS, Porto Alegre, RS, Av. Bento Gon?alves 9500, 91501-970 Porto Alegre, RS, Brazil. lisiane@freitaspi.com.br |
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Abstract: | The goal of this paper is to optimize the pressurized liquid extraction (PLE) of vitamin E from grape seed oil from residues of the wine industry. For this purpose an experimental planning to optimize the extraction of Brazilian grape seed oil by means of PLE with hexane as solvent was applied and the results are compared with conventional methods (Soxhlet and mechanical press extraction). Vitamin E was separated and analyzed using HPLC with UV detection. This study demonstrates the ability of the PLE in extracting grape seed oil rich in vitamin E. |
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