Please use this identifier to cite or link to this item: http://hdl.handle.net/1946/7406
The main objective of this thesis is to investigate whether the value of raw material in export of fresh whitefish can be increased by choosing more economic and/or value adding methods in different links of the chain from catch to retailer. The role of economical analysis is discussed, and ways to evaluate shortest path and minimum cost throughout the process parallel of maintaining or increasing the quality of the product. Results from experiments in this field are analysed and put in context with other parts of the process. Different cooling, processing and transportation methods are evaluated and disadvantages and advantages are discussed.
Results show that appropriate cooling on board and in processing and temperature control during transportation is very important in the process. Economical analysis showed that investing in liquid cooling machine on board and liquid cooling machine (LC) and contact blast and cooling (CBC) machine in processing are profitable alternatives. The use of LC and CBC together has showed in experiments that it brings the product up to 5 days in additional shelf-life which allows exporters to reconsider their transportation mode. In packaging, EPS packaging is especially recommended due to its insulations characteristic when there is risk of temperature abuse. Result regarding transportation methods show that shipping is recommended to protect the quality of the product. Shipping has also the advantage of being about four times less expensive than flight. Regarding environmental factors shipping should is the optimal transportation method.
Key words: Economical feasibility, cash flow analysis, shelf-life, fish fillets, cooling techniques, packaging, transportation, network flow.