Magnetic Field Rediation Extremely Low Frequency (ELF) is As Alternative Method of Tomatoes Preservation

Abstract

Extremely Low Frequency Magnetic Field (ELF-MF) is non-ionizing and non-termal radiation which its benefit can be felt in our life. The intensity of magnetic field emission 1500 mT during 0,1,5,10 and 15 minutes can increase the contents of N, K, Ca, Mg, Fe, Mn and Zn ion in dates (Phoenix dactylifera) (Dhawi dan Al-Khayri, 2009).