A Green Extraction Process to Recover Polyphenols from Byproducts of Hemp Oil Processing
AbstractThe valorization of solid waste hemp (Cannabis sativa L.) by a non-conventional method is presented in this article. Hemp polyphenols were extracted using aqueous solutions of 2-hydroxypropyl-β-cyclodextrin as an eco-friendly extraction solvent. Cyclodextrins (CD’s) are known to enhance the extraction of polyphenols in water by forming water soluble inclusion complexes. The process was optimized by implementing a response surface methodology (RSM) that took into consideration the following independent variables: CD concentration (CCD), solid-to-liquid ratio (S/L), and temperature (T). The assessment of the extraction model was based on two responses: the total polyphenol yield (YTP) and the antiradical activity (AAR). The optimum operating conditions were found to be: CD concentration, 32.1% (w/v); solid/solvent ratio, 1/15.2 g/mL; and extraction temperature, 28 °C. Different kinetic models were employed to fit with experimental data and the Peleg’s model was successfully developed for describing the mechanism of extraction under different processing parameters. View Full-Text
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Mourtzinos, I.; Menexis, N.; Iakovidis, D.; Makris, D.P.; Goula, A. A Green Extraction Process to Recover Polyphenols from Byproducts of Hemp Oil Processing. Recycling 2018, 3, 15.
Mourtzinos I, Menexis N, Iakovidis D, Makris DP, Goula A. A Green Extraction Process to Recover Polyphenols from Byproducts of Hemp Oil Processing. Recycling. 2018; 3(2):15.Chicago/Turabian Style
Mourtzinos, Ioannis; Menexis, Nikolaos; Iakovidis, Dimitrios; Makris, Dimitris P.; Goula, Athanasia. 2018. "A Green Extraction Process to Recover Polyphenols from Byproducts of Hemp Oil Processing." Recycling 3, no. 2: 15.