O idation Oxidation Reduction Potential (ORP): The “Lose/Gain
Electron” property
‐ Redox potential is influenced by chemical composition,
specific processing treatment and storage condition
‐ Aerobes (+Eh): must have O2 +500 to +300mV
‐ Anaerobes (‐Eh): no O2 +100 to ‐250mV or lower
‐ Facultative anaerobes: +300 to +100mV
‐ Microaerophiles