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

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.

Pôster:

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.

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 23591757, DOI 10.5151/cobeq2018-PT.0690