Setembro 2018 vol. 1 num. 5 - XXII Congresso Brasileiro de Engenharia Química

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Use of Aqueous Two-Phase system for partition of Gallic acid and 4-hydroxybenzoic acid found in the herb Leonurus sibiricus.

PELAQUIM, F. P ; SOSA, F. H. B. ; COSTA, M. C. ;

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Leonurus sibiricus is an herb very used as medicinal teas due to itsphenolic compounds. An environmentally friendly method for liquid-liquid extraction hasbeen considered due to ecotoxicological effects potentially produced by organic solventsapplied in traditional methods. Polyethylene glycol ((PEG 6000) + ammonium sulfate +water) and (Deep eutectic solvent (DES) + dipotassium fosfate + water) ATPS (Aqueoustwo-phase system) were applied to study partition of gallic and 4-hydroxybenzoic acids.Binodal curves for ATPS composed of PEG were determined by cloud point method at(298.15 and 318.15) K. Liquid-liquid equilibrium data were obtained by applying agravimetric method. Temperature effect was not relevant on binodal curves, the slopes oftie-line and tie-line length behavior. Partitioning of gallic and 4-hydroxybenzoic acids inATPS was investigated at different temperatures and tie-lines lengths. It was shown thatthe partitioning was depended on the temperature and presenting good efficiency beingATPS system promising for these biomolecules partition.

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DOI: 10.5151/cobeq2018-PT.0690

Referências bibliográficas
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Como citar:

PELAQUIM, F. P; SOSA, F. H. B.; COSTA, M. C.; "Use of Aqueous Two-Phase system for partition of Gallic acid and 4-hydroxybenzoic acid found in the herb Leonurus sibiricus.", p. 2599-2603 . In: . São Paulo: Blucher, 2018.
ISSN 2359-1757, DOI 10.5151/cobeq2018-PT.0690

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