Optimisation of Tetrahymena rostrata growth using food by-products as nitrogen source

amidon azote babeurre buttermilk cells cellule crecimiento croissance culture media dried fish extractos de levadura extrait de levure growth holotrichia (protozoa) lactosuero leche desnatada medio de cultivo milieu de culture milk products nitrogen optimization methods pescado seco produit laitier skim milk starch suero de leche tetrahymena whey yeast extracts