Abstract
Solvent extraction can be achieved in two steps: the first stage of solute dissolution in the solvent is carried out at the surface of the product (illustrated by the starting accessibility) and a second stage of diffusion phenomena, of the both, solvent towards the core of the solid matrix and the solute within the filled-with-solvent pores.
Agitation of the solvent in the external environment allows the solute that is accessible at the exchange surface to be easily extracted. Internal solvent diffusion, followed by solute-in-solvent diffusion within the matrix, becomes the limiting processes.
Instant controlled pressure drop (DIC) texturing expands the granules and increases the material’s porosity. Thus, the effective diffusivity of both solvent and solute-in-solvent within the plant medium also increases. Ultrasound-assisted extraction (UAE) establishes an internal micro-convection within the pores instead of the very prejudicial diffusion process.
Coupling DIC and UAE enables an enhancement in terms of extraction kinetics. This was defined at fundamental level and confirmed with experiments.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Allaf K, Besombes C, Berka-Zougali B, Kristiawan M, Sobolik V, Allaf T (2011) Instant controlled pressure drop technology in plant extraction processes. In: Lebovka N, Vorobiev E, Chemat F (eds) Enhancing extraction processes in the food industry, Contemporary food engineering series. CRC Press/Taylor & Francis, Dublin, Ireland, pp 255–302
Allaf T, Tomao V, Ruiz K, Chemat F (2013) Instant controlled pressure drop technology and ultrasound assisted extraction for sequential extraction of essential oil and antioxidants. Ultrason Sonochem 20(1):239–246. doi:10.1016/j.ultsonch.2012.05.013
Allaf T, Mounir S, Tomao V, Chemat F (2012) Instant Controlled Pressure Drop Combined to Ultrasounds as Innovative Extraction Process Combination: Fundamental Aspects. Procedia Engineering 42:1164–1181. doi:10.1016/j.proeng.2012.07.498
Amor BB, Lamy C, Andre P, Allaf K (2008) Effect of instant controlled pressure drop treatments on the oligosaccharides extractability and microstructure of Tephrosia purpurea seeds. J Chromatogr A 1213(2):118–124. doi:10.1016/j.chroma.2008.10.065
Ben Amor B, Allaf K (2009) Impact of texturing using instant pressure drop treatment prior to solvent extraction of anthocyanins from Malaysian Roselle (Hibiscus sabdariffa). Food Chem 115(3):820–825. doi:10.1016/j.foodchem.2008.12.094
Garau M, Simal S, Rossello C, Femenia A (2007) Effect of air-drying temperature on physico-chemical properties of dietary fibre and antioxidant capacity of orange (Citrus aurantium v. canoneta) by-products. Food Chem 104(3):1014–1024
Mason TJ (2000) Large scale sonochemical processing: aspiration and actuality. Ultrason Sonochem 7(4):145–149. doi:10.1016/s1350-4177(99)00041-3
Mimica-Dukic N, Bozin B, Sokovic M, Simin N (2004) Antimicrobial and antioxidant activities of Melissa officinalis L. (Lamiaceae) essential oil. J Agric Food Chem 52(9):2485–2489
Pingret D, Fabiano-Tixier A-S, Chemat F (2013) Ultrasound-assisted Extraction. In: Rostagno MA, Prado JM (eds) Natural Product Extraction: Principles and Applications. Royal Society of Chemistry, London (UK), pp 89–112. doi:10.1039/9781849737579
Reddy N, Yang Y (2005) Biofibers from agricultural byproducts for industrial applications. Trends Biotechnol 23(1):22–27
Toma M, Vinatoru M, Paniwnyk L, Mason TJ (2001) Investigation of the effects of ultrasound on vegetal tissues during solvent extraction. Ultrason Sonochem 8(2):137–142. doi:10.1016/s1350-4177(00)00033-x
Vinatoru M (2001) An overview of the ultrasonically assisted extraction of bioactive principles from herbs. Ultrasonics Sonochemistry 8(3):303–313. doi:10.1016/s1350-4177(01)00071-2
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer Science+Business Media New York
About this chapter
Cite this chapter
Allaf, T., Besombes, C., Tomao, V., Chemat, F., Allaf, K. (2014). Coupling DIC and Ultrasound in Solvent Extraction Processes. In: Allaf, T., Allaf, K. (eds) Instant Controlled Pressure Drop (D.I.C.) in Food Processing. Food Engineering Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8669-5_8
Download citation
DOI: https://doi.org/10.1007/978-1-4614-8669-5_8
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-8668-8
Online ISBN: 978-1-4614-8669-5
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)