Lakehal, ImaneSeffah, KarimaOurieche, Hadjer2025-03-132025-03-132022-10-23http://dspace.univ-oeb.dz:4000/handle/123456789/21252enQuercus suber L; bark; valorisation; extraction; Tannins and experimental design.Valorization ans optimisation by exoerimental design of the extraction tannins from the bark of the cirk oak of quercus lArticle