Currently Applied Extraction Processes for Secondary Metabolites from Lippia turbinata and Turnera diffusa and Future Perspectives

Separations

Pedro Aguilar-Zarate¹  Romeo Rojas²  Guillermo C. G. Martínez-Ávila² 

[1] Engineering Department, Tecnológico Nacional de México/Instituto Tecnológico de Ciudad Valles, San Luis Potosí 79010, Mexico;School of Agronomy, General Escobedo, Universidad Autonoma de Nuevo Leon, Monterrey 66050, Mexico;

关键词: Lippia turbinata;    Turnera diffusa;    essential oils;    polyphenols;    monoterpenes;   

DOI  :  10.3390/separations8090158

来源: DOAJ

【 摘 要 】

The poleo (Lippia turbinata Griseb.) and damiana (Turnera diffusa Wild) are two of the most valued species in the Mexican semidesert due to their medicinal uses. The conventional essential oil extraction process is hydrodistillation, and for the extraction of antioxidants, the use of organic solvents. However, these techniques are time-consuming and degrade thermolabile molecules, and the efficiency of the process is dependent on the affinity of the solvent for bioactive compounds. Likewise, they generate solvent residues such as methanol, hexane, petroleum ether, toluene, chloroform, etc. Therefore, in recent years, ecofriendly alternatives such as ohmic heating, microwaves, ultrasound, and supercritical fluids have been studied. These methodologies allow reducing the environmental impact and processing times, in addition to increasing yields at a lower cost. Currently, there is no up-to-date information that provides a description of the ecofriendly trends for the recovery process of essential oils and antioxidants from Lippia turbinata and Turnera diffusa. This review includes relevant information on the most recent advancements in these processes, including conditions and methodological foundation.

【 授权许可】

Unknown