Extraction of Gallic Acid and Ferulic Acid for Application in Hair Supplements

March 2023 in “ Molecules/Molecules online/Molecules annual ”

Pedro Velho, Catarina S. Rebelo, Eugénia A. Macedo

gallic acid ferulic acid Aqueous Two-Phase Systems ethyl lactate trisodium citrate tripotassium citrate antioxidant hair supplements GA FA ATPS

Studysummary This study successfully extracted gallic acid and ferulic acid using a biocompatible aqueous two-phase system, suggesting a sustainable approach for producing antioxidants as food supplements for hair health. Our plain-language summary of this paper — not a Tressless recommendation.

The study successfully extracted gallic acid (GA) and ferulic acid (FA) using Aqueous Two-Phase Systems (ATPS) composed of ethyl lactate, trisodium citrate, or tripotassium citrate, and water, at 298.15 K and 0.1 MPa. FA showed higher partition coefficients and extraction efficiencies (close to 100%) compared to GA. The stability of GA and FA was assessed at different pH levels, revealing that GA's UV-Vis absorbance spectra were unstable at high pH, while FA remained stable. The research supports the eco-friendly production of antioxidant-rich hair supplements from biowaste, with FA showing more favorable extraction characteristics.

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