Formulation d’un shampoing à base de jujubier et romarin

Abstract

The study aimed to evaluate the biological properties of rosemary and Ziziphus lotus through the analysis of their antioxidant and anti-inflammatory activities. The extract of Ziziphus lotus and the essential oil of rosemary both demonstrated significant antioxidant activity against the DPPH radical. The effectiveness of these substances is dose-dependent: as their concentration increases, the percentage of DPPH inhibition also increases. Ascorbic acid, used as a positive control, showed that rosemary's activity was weaker than Ziziphus lotus, indicating a superior antioxidant activity for Ziziphus lotus. On the other hand, the results of this study highlighted a growing anti-inflammatory activity based on the concentration of the Ziziphus lotus extract, although the inhibition levels remained moderate. This activity could be attributed to the presence of bioactive compounds such as flavonoids and phenolic acids, known for their anti-inflammatory properties. The results clearly show that the Rosmarinus officinalis extract exhibits a notable, dose-dependent anti-inflammatory activity. As the concentration of the extract increases, the inhibition of albumin denaturation becomes more significant, approaching the efficacy of diclofenac. Both rosemary and Ziziphus lotus have antibacterial activity against Staphylococcus aureus. Rosemary essential oil stands out with strong and marked action, creating a large inhibition zone. The Ziziphus lotus extract, on the other hand, has visible but less powerful action. Although Pseudomonas bacteria are resistant to many antimicrobials, including plant extracts, the Ziziphus lotus extract was ineffective against this strain. In contrast, rosemary was able to inhibit its growth, confirming its broader spectrum of activity. This effectiveness is attributed to its volatile compounds.