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Bioactives from natural sources extracted using green processes

AuthorsHerrero, Miguel ; Mendiola, J. A. ; Castro-Puyana, M. ; Cifuentes, Alejandro ; Ibáñez, Elena
Issue Date2013
CitationSILAE 2013
AbstractAt present, there is an enormous interest in finding new bioactive compounds able to prevent or improve the health status of the individuals, mainly acting as food supplements, nutraceuticals or functional food ingredients. Undoubtedly, nature can be considered an unlimited source of bioactives and the search of new compounds with improved activities have ran parallel to the search for new natural sources. Different families of compounds have been extracted from plants, although nowadays there is a huge interest in the potential use of marine natural sources to obtain these bioactives, mainly considering their huge diversity, in terms of number of different species that might be potentially used, their sometimes unique chemical structures and their ability to work as natural bioreactors potentiating the synthesis of valuable compounds depending on the cultivation conditions. Moreover, researchers are facing new challenges in the optimization of new extraction processes to obtain bioactives from natural sources: the development of fast, selective, efficient, sustainable, green (without using toxic organic solvents), with high yields and at lower cost extraction processes is a must. The techniques able to meet these requirements are, among others, those based on the use of compressed fluids such as supercritical fluid extraction (SFE), pressurized liquid extraction (PLE) and subcritical water extraction (SWE), which are among the more promising processes. In this presentation, different examples will be shown, considering different raw materials such as plants, algae and food by-products and employing these sustainable green technologies. With this approach we will try to demonstrate the possibility of tuning the extraction conditions depending on the target compound(s) and the raw material.
DescriptionTrabajo presentado al XXII Congreso Italo-Latinoamericano de Etnomedicina celebrado en Puntarenas (Costa Rica) del 2 al 6 de septiembre de 2013.
Publisher version (URL)http://www.silae.it/por/silae2013
Appears in Collections:(CIAL) Comunicaciones congresos
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