title: Comparison between 2 methods of solid-liquid extraction for the production of Cinchona calisaya elixir: an experimental kinetics and numerical modeling approach.
abstract: The purpose of this study is to compare the extraction process for the production of China elixir starting from the same vegetable mixture, as performed by conventional maceration or a cyclically pressurized extraction process (rapid solid-liquid dynamic extraction) using the Naviglio Extractor. Dry residue was used as a marker for the kinetics of the extraction process because it was proportional to the amount of active principles extracted and, therefore, to their total concentration in the solution. UV spectra of the hydroalcoholic extracts allowed for the identification of the predominant chemical species in the extracts, while the organoleptic tests carried out on the final product provided an indication of the acceptance of the beverage and highlighted features that were not detectable by instrumental analytical techniques. In addition, a numerical simulation of the process has been performed, obtaining useful information about the timing of the process (time history) as well as its mathematical description.
authors.affiliation: Dept. of Chemical Sciences, Univ. of Naples Federico II, via Cintia 21, 80126, Naples, Italy.
authors.forename: Daniele
authors.initials: D
authors.lastname: Naviglio
authors.forename: Andrea
authors.initials: A
authors.lastname: Formato
authors.forename: Monica
authors.initials: M
authors.lastname: Gallo
mesh_terms: D001628:Beverages / Q000032:analysis*; D002681:China; D002929:Cinchona / Q000737:chemistry*; D003198:Computer Simulation; D007700:Kinetics; D008956:Models, Chemical; D010936:Plant Extracts / Q000302:isolation & purification*; D052616:Solid Phase Extraction
chemical_list: D010936:Plant Extracts
keywords: Cinchona calisaya; Naviglio extractor; RSLDE; elixir; numerical simulation