Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K
Vascular plants synthesize attractive pharmacological compounds of which phenolic acids stand out. Caffeic acid and p-coumaric acids belonged to that category of compounds and they are found in almost every plant. Since their importance and wide range of applications, the aim of this study is to eva...
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| Format: | Online |
| Language: | Portuguese |
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Universidade Estadual de Campinas
2019
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| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2564 |
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| author | Netto, Giovana de Assis Costa, Mariana da Pelaquim, Fernanda |
| author_facet | Netto, Giovana de Assis Costa, Mariana da Pelaquim, Fernanda |
| author_sort | Netto, Giovana de Assis |
| collection | Portal de Eventos Científicos da UNICAMP |
| container_reference | Revista dos Trabalhos de Iniciação Científica da UNICAMP; n. 27 (2019): Congresso de Iniciação Científica UNICAMP; 1-1 |
| description | Vascular plants synthesize attractive pharmacological compounds of which phenolic acids stand out. Caffeic acid and p-coumaric acids belonged to that category of compounds and they are found in almost every plant. Since their importance and wide range of applications, the aim of this study is to evaluate the partition coefficient (K) and the separation efficiency (?) of the two acids from an aqueous two-phase system (ATPS) composed of ethanol + ammonium sulfate + water at 298 K. Liquid-liquid equilibrium (LLE) data were obtained by the determination of the binodal curve and the tie-lines, using cloud point and gravimetric methods, respectively. After that, using known concentrations in the biphasic region, the partition coefficient and the separation efficiency were determined. For the caffeic acid, the values obtained were, in order, 14.95 and 90.75%. And, for the p-coumaric acid, the values were 22.20 and 94.47%. Both compounds showed more affinity with the alcoholic phase and can be extracted using the ATPS studied. |
| first_indexed | 2025-10-08T13:57:50Z |
| format | Online |
| id | ojs-article-2564 |
| institution | Universidade Estadual de Campinas |
| issn | 2596-1969 |
| language | por |
| last_indexed | 2025-10-08T13:57:50Z |
| publishDate | 2019 |
| publisher | Universidade Estadual de Campinas |
| record_format | ojs |
| spelling | ojs-article-25642025-09-26T14:39:16Z Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K Netto, Giovana de Assis Costa, Mariana da Pelaquim, Fernanda Liquid liquid equilibrium Caffeic acid p-Coumaric acid Vascular plants synthesize attractive pharmacological compounds of which phenolic acids stand out. Caffeic acid and p-coumaric acids belonged to that category of compounds and they are found in almost every plant. Since their importance and wide range of applications, the aim of this study is to evaluate the partition coefficient (K) and the separation efficiency (?) of the two acids from an aqueous two-phase system (ATPS) composed of ethanol + ammonium sulfate + water at 298 K. Liquid-liquid equilibrium (LLE) data were obtained by the determination of the binodal curve and the tie-lines, using cloud point and gravimetric methods, respectively. After that, using known concentrations in the biphasic region, the partition coefficient and the separation efficiency were determined. For the caffeic acid, the values obtained were, in order, 14.95 and 90.75%. And, for the p-coumaric acid, the values were 22.20 and 94.47%. Both compounds showed more affinity with the alcoholic phase and can be extracted using the ATPS studied. Universidade Estadual de Campinas 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo de convidado application/pdf https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2564 10.20396/revpibic2720192564 Revista dos Trabalhos de Iniciação Científica da UNICAMP; n. 27 (2019): Congresso de Iniciação Científica UNICAMP; 1-1 2596-1969 por https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2564/2581 Copyright (c) 2019 Revista dos Trabalhos de Iniciação Científica da UNICAMP http://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Netto, Giovana de Assis Costa, Mariana da Pelaquim, Fernanda Liquid liquid equilibrium Caffeic acid p-Coumaric acid Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title | Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title_full | Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title_fullStr | Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title_full_unstemmed | Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title_short | Partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 K |
| title_sort | partition study of caffeic and p-coumaric acids from aqueous two-phase system composed of ethanol + ammonium sulfate + water at 298 k |
| topic | Liquid liquid equilibrium Caffeic acid p-Coumaric acid |
| url | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2564 |
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