Valorization Of Essential Oils, Hydrosols And Extracts Of Algerian Inulaviscosa Leaves

Résumé: This study focuses on the valorization of the extracts of Inulaviscosa leaves in terms of yield and antioxidant properties. The recovery tests of Inulaviscosa essential oils using three methods (Steam distillation, Hydrodistillation, Hydrodiffusion) showed that the essential oils even when their yields are low, presented very valuable antiradical activity. The hydrosols obtained from these three processes revealed a great presence of phenolic compounds with important antiradical activity. The extraction tests on Inulaviscosa leaves performed in a Soxhlet showed decreasing yields depending on the polarity of the solvent used. The same observation stands for the antiradical activity. In all cases, the use of water, the unique green solvent with low cost, gave the best results in terms of polyphenols yield and antiradical activity. This study highlighted the influence of the nature of the process and the solvent used on yield and antiradical power of the recovered extract. These results are very promising as the antioxidant phenolic compounds recovered using an environmentally-friendly cleaning process constitute a good source of natural antioxidants for food, cosmetic and pharmaceutical industries.

Publié dans la revue: Algerian Journal of Engineering Research