According to my good friend who operates a processing center, the most difficult task in any processing center is to ensure that the end products have very little microbes counts.
If you wish to export your processed nests overseas, this microbe counts do play a significant role in getting your export lisence.
If the batch sample does not passed the microbe counts the whole batch needs to be reprocessed.
How do you minimise these microbes in the processed nests?
The best method, according to Jabatan Veterina, is to look into the use of ozone treatment.
Yes all water that you use during the processing operation must be ozone rich.
What is ozone?
Ozone is an unstable form of oxygen which consist of 3 oxygen atoms (O3). It reacts with other gases, changing their chemical structure. As ozone oxidizes/disinfects, it destroys harmful bacteria and contaminants, then reverts to normal oxygen.
Benefits of Ozones:
1) Ozone is the strongest oxidant and disinfectant available for the treatment of aqueous solutions and gaseous mixtures.
2)Although ozone is only partially soluble in water, it is sufficiently soluble and stable such that its oxidation or disinfectant properties can be fully utilized.
3)After ozone oxidizes or disinfects, it decomposes into oxygen.
4)Ozone reacts with a large variety of organic compounds resulting in oxygen-containing organic by-products.
5)Although ozone is the strongest oxidizing agent commercially available, it is safe to handle. The primary reason is that it cannot be stored and, therefore must be generated and used on-site.
6)Ozone in its gaseous phase is a proven deodorizer for a variety of odorous materials.
7)In treating potable water, wastewater, and landfill leachate, ozone has the proven ability to convert biorefractory organic materials to biodegradable materials. As a result, combining ozone oxidation with subsequent biological treatment can produce water or wastewater with lower concentrations of problematic organic compounds more cost-effectively than either process used individually.
8)Applying ozone to any medium (liquid or gaseous) does not add other chemicals.
Any Health effect?
The only health effect, if exposed to the gas for too long is breathing difficulties.
You might need to store this ozone water maker in a suitable room that allows a kind of ozone gas detection alarm.
The ozone water maker must be carefully choosen to ensure that there are no ozone gas leaks into the air.
Remember ozone are not stable, they tend to change into oxygen which is said to be the more stable formation.
What actually happenned to those bacteria?
Look at the picture:
1) A healthy bacillus bacterial cell (waiting to ruin your day).
2) Zooming in closer, Ozone (light green) comes into contact with the cell wall. The cell wall is vital to the bacteria because it ensures the organism can maintain its shape.
3)As ozone molecules make contact with the cell wall, a reaction called an oxidative burst occurs which literally creates a tiny hole in the cell wall.
4) A newly created hole in the cell wall has injured the bacterium.
5) The bacterium begins to loose its shape while ozone molecules continue creating holes in the cell wall.
6) After thousands of ozone collisions over only a few seconds, the bacterial wall can no longer maintain its shape and the cell dies.
I hope the above short description about the use of ozone will help you with your raw nest procceessing activities.
The materials describe above can be found at: http://www.ozonesolutions.com/
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