eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2017-03-25 14 1 279 284 10.13005/bbra/2445 22021 article Hamideh Eslami Chalandar 1 Hamid Reza Ghorbani 2 Hosein Attar 1 Seyed Abolhasan Alavi 1 Department of Chemical Engineering, Science and Research branch, Islamic Azad University, Tehran, Iran. Department of Chemical Engineering, Qaemshahr branch, Islamic Azad University, Qaemshahr, Iran. Mold green and blue are most important disease of Citrus fruits after crop that it is created by fungus Penicillium italicum and Penicillium digitatum. In this study, copper and copper oxide nanoparticles synthesized by chemical reduction and precipitation methods and characterized by X-ray diffraction, FTIR, SEM and TEM. Also, the anti-fungal properties of synthesized nanoparticles were tasted against Penicillium on Orange fruit by Disc-Diffusion method. The antifungal properties of nanoparticles were studied by the effect of different concentrations of nanoparticles. The results show that anti-fungal properties also increased by increasing the concentration of nanoparticles to 15%. https://www.biotech-asia.org/vol14no1/antifungal-effect-of-copper-and-copper-oxide-nanoparticles-against-penicillium-on-orange-fruit/ Copper nanoparticles; Copper oxide nanoparticles; fungus Penicillium; anti-fungal properties