Comparison of soxhlet, ultrasound-assisted and pressurized liquid extraction of terpenes, fatty acids and Vitamin E from Piper gaudichaudianum Kunth |
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| Authors: | Péres Valéria Flores Saffi Jenifer Melecchi Maria Inês S Abad Fernanda C de Assis Jacques Rosângela Martinez Migdalia M Oliveira Eniz Conceição Caramão Elina B |
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| Institution: | Laboratório de Genética Toxicológica, ULBRA, Canoas, RS-Brazil; Universidad de La Habana, Cuba. |
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| Abstract: | This paper describes a comparative study of extraction methods of terpenes (terpenic alcohols and phytosterols), fatty acids and Vitamin E from leaves of Piper gaudichaudianum Kunth. The analysis of extracts was done by gas chromatography with mass spectrometric detection. The identification and quantification was made by co-injections of the extract with certified standards. The use of pressurized liquid extraction (PLE; Dionex trade name: ASE, for accelerated solvent extraction) decrease significantly the total time of extraction, the amount of solvent and the manipulation of sample and solvents in comparison with soxhlet (SE) and ultrasound-assisted (USE). In addition, PLE was more effective for the extractions of terpenes (terpenic alcohols and phytosterols), fatty acids and Vitamin E. |
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