p. 165 - 170 RECHERCHES DE CYNETIQUE ENZYMATIQUE SUR L'HYALURONIDASE EXTRAITE ET PURIFIE DE Engraulis encrasicolus ponticus EN PRESENCE D'UN ACTIVATEUR Natalia Rosoiu, Maria Panait Institut Roumain de Recherches Marines Constanta Abstract Data on some characteristics of hyaluronidase extracted and purified from Engraulis encrasicolus ponticus in the presence of an activator are presented. The most efficient activator of this enzyme is NaCl. It produces a highest activation at a concentration of 0.3 M by an optium pH action of 4.4 and optium temperature of 60 grade C.