CHAPTER 2: Extraction of Natural Products: Principles and Fundamental Aspects
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Published:01 May 2013
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Special Collection: 2013 ebook collection , 2011-2015 industrial and pharmaceutical chemistry subject collectionSeries: Green Chemistry
M. Palma, G. F. Barbero, Z. Piñeiro, A. Liazid, C. G. Barroso, M. A. Rostagno, ... M. A. A. Meireles, in Natural Product Extraction: Principles and Applications, ed. M. A. Rostagno and J. M. Prado, The Royal Society of Chemistry, 2013, pp. 58-88.
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In this chapter, the principles and fundamental aspects of the extraction of bioactive compounds from natural products are discussed in detail. Conventional extraction techniques like soaking, Soxhlet and distillation with water and/or steam are presented, and their applications in the extraction of bioactive compounds from natural sources are discussed. The main variables that influence the conventional extraction techniques (solvent choice, temperature, time, solvent to feed ratio) are also discussed. Moreover, examples of different application are presented, mainly related to the effects of process parameters in the final yield.