Effect of Ozone on Fish (Formaldehyde Removal)
 

One sample of "Kampung Fish" was sprayed with Formaldehyde and left overnight. The sample was then divided into two portions and treated as follows for the analysis of formaldehyde residue :-

A) Unwashed sample
B) Soaked in tap water with ozone treatment for 30 minutes.


On analysis of the Formaldehyde removal efficiency test, the following results were obtained:-

A) Unwashed sample ... 1000 mg/kg
B) Ozone treated sample ... 0.53 mg/kg

The results showed that the Formaldehyde residue was reduced to low level after ozone treatment. *The ozone treatment was carried out in 3 litres of tap water using top-Ozone Multi-Functional Ozone Food Sterilizer (FS-505) for 30 minutes.