Page 79 - New additives and ingredients in the formulation of aquafeeds

Estimated cost of the freeze-dried extracts produced at industrial scale
Most companies work in the enzymes extraction via fermentation through
bacteria and fungus with terrestrial and marine origin like Novozymes,
Larbus, AddFood Biocon and Aqua Biotechnology, among others. Very few
companies are dedicated to enzymes extraction from fish raw material:
in the case of Arcticzymes, they use processed fish from land industry for
applications in food industry and other fields. Zymetech, in contrast, use
viscera from on board processing since 10 years ago with applications in
natural, cosmetic and medical products.
So at present there is not any well established industrial process oriented
to the production of enzyme extracts from fish viscera, so, cost calculation
has been based in the steps described in Figure 3 for the lab process, as well
as the costs of the extraction process and average yields described on the
previous section. Taking this into account, the approximate cost would be:
Concept
Price / gram
CEE PEE
Raw material* 0.003 0.02
Reagents 0.007 1.91
Direct labour cost 0.300 0.300
Packing and packaging 0.050 0.050
Energy 0.300 0.300
Other operational costs** 0.050 0.050
Production direct cost 0.71 € 2.63 €
Company benefit 20% 0.142 0.526
Selling price 0.85 € 3.156 €
Remarks:
* Initial cost of viscera: 0.5 €/kg. Yields of 150 g/kg and 25 g/kg for CEE and PEE, respectively.
**Operational costs would include: commercial labour, maintenance and repair labour,
accountancy labour, quality labour, logistics, spare parts, amortizations, etc.
Of course, a company should not be profitable if producing only this kind of products. This
would be only feasible in a well-established company producing a wide range of other additives.
Use of purified extracts from fish viscera as an enzyme additive in feeds for juvenile marine fish 77