Supercritical Fluid Extraction of Essential Oils from Natural Sources

Triques, Carina Contini; Silva, Edson Antônio da; Santos, Kátia Andressa; Klein, Elissandro Jair; Módenes, Aparecido Nivaldo; Fagundes‐Klen, Márcia Regina; Fiorese, Mônica Lady

doi:10.1002/9781119829614.ch32

Cited by 2 publications

(1 citation statement)

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“…The use of scCO 2 remarkably improves the extraction efficiency of functional components, enabling selective extraction via temperature or pressure control [41][42][43]. The extraction of functional components using scCO 2 has been applied to various natural food sources, such as essential oils [44], γ-oryzanol [45], chamomile seed oil [46], and hops [47], as well as for caffeine removal [48] and oil extraction from microalgae [49][50][51]. However, the extraction of functional components from highly aqueous samples using supercritical methods is challenging [52].…”

Section: Disadvantages Of Traditional Solvent Extractionmentioning

confidence: 99%

Extraction and Separation of Natural Products from Microalgae and Other Natural Sources Using Liquefied Dimethyl Ether, a Green Solvent: A Review

Wang,

Zhu,

Mei

et al. 2024

Foods

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Microalgae are a sustainable source for the production of biofuels and bioactive compounds. This review discusses significant research on innovative extraction techniques using dimethyl ether (DME) as a green subcritical fluid. DME, which is characterized by its low boiling point and safety as an organic solvent, exhibits remarkable properties that enable high extraction rates of various active compounds, including lipids and bioactive compounds, from high-water-content microalgae without the need for drying. In this review, the superiority of liquefied DME extraction technology for microalgae over conventional methods is discussed in detail. In addition, we elucidate the extraction mechanism of this technology and address its safety for human health and the environment. This review also covers aspects related to extraction equipment, various applications of different extraction processes, and the estimation and trend analysis of the Hansen solubility parameters. In addition, we anticipate a promising trajectory for the expansion of this technology for the extraction of various resources.

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