Abstract
Food industry is generating annually huge quantities of by-products and waste, which are generally considered as problem, as their disposal is associated with environmental and health related issues. During the last decade, numerous research groups and industries have been interested in valorizing these by-products by extracting valuable compounds and incorporating them generally in food and/or cosmetic products, which enhances the profitability of the process. Conventional extraction methods (i.e., maceration, thermal extraction) are extensively used for such purposes and showed high yields in many cases. However, the need to replace toxic organic solvents, shortening the extraction time, and reducing the energy consumption has incited the researchers to develop and evaluate alternative methods (i.e., electrotechnologies, high pressure processing, ultrasound- and microwave-assisted extractions), which are more environmental friendly and cost effective. Among electrotechnologies, pulsed electric fields (PEF) technology has been widely evaluated for the extraction of high-added value compounds from waste and by-products, showing promising results, compared to conventional methods. This chapter describes the features of PEF as well as its use as sustainable and green recovery technology of valuable compounds from food by-products.
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Acknowledgments
F.J. Barba was supported from the Union by a postdoctoral Marie Curie Intra-European Fellowship (Marie Curie IEF) within the 7th European Community Framework Programme (http://cordis.europa.eu/fp7/mariecurieactions/ief_en.html) (project number 626524-HPBIOACTIVE-Mechanistic modeling of the formation of bioactive compounds in high pressure processed seedlings of Brussels sprouts for effective solution to preserve healthy compounds in vegetables).
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Poojary, M.M. et al. (2016). Application of Pulsed Electric Field Treatment for Food Waste Recovery Operations. In: Miklavcic, D. (eds) Handbook of Electroporation. Springer, Cham. https://doi.org/10.1007/978-3-319-26779-1_185-1
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DOI: https://doi.org/10.1007/978-3-319-26779-1_185-1
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