Int. J. Electrochem. Sci., 8 (2013) 6033 - 6046 International Journal of ELECTROCHEMICAL SCIENCE www.electrochemsci.org Asteriscus Imbricatus Extracts: Antifungal Activity and Anticorrosion Inhibition B. Senhaji 1 , D. Ben Hmamou 1 , R. Salghi 1,* , A. Zarrouk 2 , B. Chebli 1 , H. Zarrok 3 , I. Warad 4 , B. Hammouti 2 , S. S. Al-Deyab 4 1 Ecole Nationale des Sciences Appliquées, Equipe Génie de l’Environnement et de Biotechnologie, Université Ibn Zohr, B.P 1136, 80000 Agadir, Morocco. 2 LCAE-URAC18, Faculté des Sciences, Université Mohammed Premier, B.P. 4808, 60046 Oujda, Morocco 3 Laboratoire des procèdes de séparation, Faculté des Sciences, Kénitra, Morocco 4 Department of Chemistry, College of Science, King Saud University, B.O. 2455, Riaydh 11451, Saudi Arabia * E-mail: r_salghi@yahoo.fr Received: 6 February 2013 / Accepted: 12 March 2013 / Published: 1 April 2013 The antifungal activity of different extracts of Astericus Imbricatus against botrytis cinerea isolated from tomato show that the percentage of the inhibition was almost100% for the four extracts of organic solvents at 500 ppm. At 250 ppm the percentage of inhibition was almost 70% for the ether extract and for the chloroform extract, 60 % and 50% for the ethyl acetate extract and for methanol extract, respectively. While the aqueous extract of A stericus Imbricatus exhibited moderate antifungal activity. The corrosion inhibition by an Astericus Imbricatus extract (AIE) on C38 steel in hydrochloric acid (HCl) solution has been investigated by electrochemical methods and weight loss. Potentiodynamic polarization studies clearly reveal that the presence of AIE does not change the mechanism of the hydrogen evolution reaction and they act essentially as cathodic and anodic inhibitor. Inhibition efficiency of AIE reached 96.33% at 0.6 g/l. The adsorption of AIE on C38 steel surface obeys the Langmuir isotherm. Keywords: Antifungal activity Astericus Imbricatus, botrytis cinerea, Corrosion inhibition, Steel. 1. INTRODUCTION Medicinal and aromatics plants play a significant role in the economy of Morocco. As part of a contribution to the development of natural Moroccan heritage, many researches are currently testing the efficacy of medicinal plant extracts against human’s diseases or plant diseases or for industrial purpose [1].