Kinetics of Supercritical CO<sub>2</sub> Extraction from Burrito (<i>Aloysia polystachya</i>) Leaves and Sucupira-Preta (<i>Bowdichia virgilioides</i>) Seeds

Kinetics of Supercritical CO<sub>2</sub> Extraction from Burrito (<i>Aloysia polystachya</i>) Leaves and Sucupira-Preta (<i>Bowdichia virgilioides</i>) Seeds

This study investigated the application of supercritical carbon dioxide (CO<sub>2</sub>) for the extraction of essential oils from plant materials with anxiolytic potential, focusing on the leaves of burrito (<i>Aloysia polystachya</i>) and the seeds of sucupira-preta (<i&...

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Main Authors: Gabrielle Vaz Vieira, Michel Rubens dos Reis Souza, Carlos Toshiyuki Hiranobe, José Eduardo Goncalves, Cristiane Mengue Feniman Moritz, Otávio Akira Sakai, Leila Maria Sotocorno e Silva, Michael Jones da Silva, Erivaldo Antônio da Silva, Renivaldo José dos Santos, Edson Antônio da Silva, Lucio Cardozo-Filho, Leandro Ferreira-Pinto
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Separations
Subjects:
burrito
sucupira-preta
supercritical extraction
CO<sub>2</sub>
Sovová
squalene
Online Access:https://www.mdpi.com/2297-8739/12/1/6
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Summary:This study investigated the application of supercritical carbon dioxide (CO<sub>2</sub>) for the extraction of essential oils from plant materials with anxiolytic potential, focusing on the leaves of burrito (<i>Aloysia polystachya</i>) and the seeds of sucupira-preta (<i>Bowdichia virgilioides</i>). The supercritical extraction technique was chosen for its ability to produce high-purity extracts without residual solvents and to reduce the environmental impact. This study evaluated the influence of temperature (40 °C, 50 °C, and 60 °C) and pressure (22 MPa, 25 MPa, and 28 MPa) on extraction efficiency using a 2<sup>2</sup> factorial design with triplicates at the central point. The maximum yields were 1.2% for burrito leaves and 4.2% for sucupira-preta seeds. Despite their relatively low yields, the extracts contained a diverse range of chemical compounds, including fatty acids (oleic, linoleic, and palmitic acids), squalene, β-carotene, vitamin E, and other bioactive molecules with antioxidant, anti-inflammatory, and immunomodulatory properties. Statistical analysis demonstrated that pressure was the most influential factor affecting yield, whereas temperature played a secondary role. The Sovová kinetic model provided a good fit for the extraction curves, with determination coefficients (R<sup>2</sup>) above 0.95, thus validating the efficiency of the method. These results highlight the pharmaceutical potential of these extracts, particularly for therapeutic and anxiolytic purposes.
ISSN:2297-8739

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