Mathematical modelling of polyphenol extraction by aqueous two-phase system in continuously operated macro- and micro-extractors |
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| Authors: | Ana Jurinjak Tu?ek Anita ?ali? Bruno Zeli? |
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| Affiliation: | 1. Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia;2. Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia |
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| Abstract: | An aqueous two-phase system (ATPS) in combination with macro- and micro-extractors was used for polyphenol extraction from a model solution (gallic acid) and three real samples (red and white wine, and orange juice). The objective of the present study was to apply a mathematical model that successfully describes and predicts performances of macro- and micro-extractors. The micro-extractor system was selected as the most suitable for the polyphenol extraction because the same extraction efficiency was obtained for two levels of magnitude shorter residence time compared to the macro-extractor. Based on good agreement between model predictions and experimental results, the obtained simulations could be used for further process optimization and improvement. |
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| Keywords: | Aqueous two-phase system macro- and micro-extractor mathematical modelling polyphenols |
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