Abstract
Amongst natural compounds, phenolic compounds – the most abundant class of secondary plant metabolites – are commonly employed as additives in the manufacturing of various human commodities, such as dietary supplements, food and pharmaceutical and cosmetic products, and hence can be considered of high importance from an industrial standpoint. The extraction of these compounds proceeds according to well-established procedures, which are multistage, laborious and time and energy consuming and use organic solvents which are often flammable, volatile and toxic. Accordingly, there is the need to develop novel and sustainable procedures, so that the production of such value-added chemicals can be achieved in a more efficient and environmentally friendly manner. This chapter represents a comprehensive overview on the recent achievements in the extraction of natural compounds, and mainly phenolic compounds, by means of ionic-liquid-based aqueous biphasic systems (IL-based ABS). It considers factors that influence the extraction efficiency, such as inorganic salt type and concentration, IL type and concentration, pH value and temperature, and provides some clues towards the extraction yield improvement.
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Acknowledgements
The authors would like to acknowledge the support of the National Science Fund of Bulgaria at the Ministry of Education and Science (Project DFNI T02/23) and the contribution of COST Action CM1206-Exchange on Ionic Liquids.
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Bogdanov, M.G., Svinyarov, I. (2016). Extraction of Natural Phenolic Compounds with ABS. In: Freire, M. (eds) Ionic-Liquid-Based Aqueous Biphasic Systems. Green Chemistry and Sustainable Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-52875-4_8
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DOI: https://doi.org/10.1007/978-3-662-52875-4_8
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