Design and scale-up of pressurized fluid extractors for food and bioproducts

Pronyk, C.; Mazza, G.

doi:10.1016/j.jfoodeng.2009.06.002

Cited by 134 publications

(67 citation statements)

References 57 publications

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“…The mixture solvent-plant solutes is separated in flash tanks (cyclonic and gravimetric separators) usually changing drastically the solvent power of CO 2 by depressurization or temperature change or both. Then, CO 2 is cooled at liquid state and compressed to return to the extractor [11,146]. …”

Section: Process Considerationsmentioning

confidence: 99%

“…The first step in the setup of an SFE requires knowledge of the mass-transfer mechanisms, kinetics parameters and thermodynamic restrictions related to plant materials with complex cellular structure [10,146]. Several mathematical models have been developed in the last 15 years.…”

Section: Process Considerationsmentioning

confidence: 99%

“…This parameter is closely related to the solubility of the solute in the supercritical fluid [11,159,160]. Moreover, the solubility of target compounds can be determined also from the slope of the linear portion of the extraction curve in the stage of constant-extraction rate period (CER) [146].…”

Section: Process Considerationsmentioning

confidence: 99%

“…Usually, they are added in a percentage that varies from 1% to 15% [89,[161][162][163]. However, safer and less harmful solvents that are easy to remove, or recover, are gaining popularity in agronomic applications of SFE [146] and only ethanol and water have the lower toxicity in the final extract.…”

Section: Process Considerationsmentioning

confidence: 99%

“…In fact, the scale up requires the adjustment of system geometries, fluid dynamics parameters and other factors that can influence extraction. [146,166]. One of the most delicate questions detected with pilot plant experiments is the existence of channeling.…”

Section: Process Considerationsmentioning

confidence: 99%

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Supercritical Fluid Extraction of Plant Flavors and Fragrances

2013

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Supercritical fluid extraction (SFE) of plant material with solvents like CO 2 , propane, butane, or ethylene is a topic of growing interest. SFE allows the processing of plant material at low temperatures, hence limiting thermal degradation, and avoids the use of toxic solvents. Although today SFE is mainly used for decaffeination of coffee and tea as well as production of hop extracts on a large scale, there is also a growing interest in this extraction method for other industrial applications operating at different scales. In this review we update the literature data on SFE technology, with particular reference to flavors and fragrance, by comparing traditional extraction techniques of some industrial medicinal and aromatic crops with SFE. Moreover, we describe the biological activity of SFE extracts by describing their insecticidal, acaricidal, antimycotic, antimicrobial, cytotoxic and antioxidant properties. Finally, we discuss the process modelling, mass-transfer mechanisms, kinetics parameters and thermodynamic by giving an overview of SFE potential in the flavors and fragrances arena.

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Section: Process Considerationsmentioning

confidence: 99%

Section: Process Considerationsmentioning

confidence: 99%