Fenugreek as a Potential Active Ingredient for the Development of Innovative Cosmetic Formulation
Résumé
This study focuses on optimizing the extraction conditions for antioxidants from the fenugreek seeds (Trigonella foenum-graecum L.) through ultrasound-assisted extraction with the aim of creating a stable and effective cosmetic formulation. RSM was used to optimize the extraction parameters to ultrasonic power of 60%, with 50% ethanol concentration for 10 min. Under those conditions, the extract showed a phenolic-rich profile, with a total phenolic content equivalent to 18.56 mg GAE/g DM and a radical scavenging activity of 63.24%. Chromatographic analysis further confirmed the abundance of phenolic compounds, with epicatechin identified as the major compound at a concentration of 22.58 mg/g DM. The extract exhibited considerable antibacterial activity for a number of bacterial strains, and it exhibited no cell toxicity on RAW 267.4 cells, supporting its safe use in cosmetic products. The cosmetic formulation maintained high stability, with pH values from 6.25 to 6.35, viscosity values from 7941.69 to 7956.70 cp, and less color change after 90 days of preservation under varied temperature conditions. These findings validate fenugreek extract’s potential for producing a stable, eco-friendly, and effective cosmetic product, thus bringing skin health benefits and driving sustainable extraction methods in the cosmetic industry.
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