29/10/2023
KHANH HOA APPLIED NEW TECHNOLOGY IN TUNA PRESERVATION
Tuna fishing has long been a strength of Khanh Hoa province, with traditional fishing grounds being the Hoang Sa and Truong Sa areas. However, the value of tuna after catching is not high, partly due to the way it is preserved after catching. Currently, more than 90% of fishermen in Khanh Hoa province preserve their caught seafood with crushed stone, the temperature threshold in the storage cellar is 0 degrees Celsius, fish is preserved for a maximum of 10 to 12 days and are forced to sell the product within this period, otherwise quality will not be guaranteed. Meanwhile, each fisherman's trip to sea usually lasts 20-25 days and poor quality preservation leads to a very large post-harvest loss rate, which can be up to nearly 40%.
To reduce post-harvest losses for offshore fishing vessels, especially ocean tuna fishing vessels, the Seafood Research Institute Southern (SORESIMF) has piloted a tuna preservation model. ocean using slurry ice technology combined with Nano Nitrogen gas on Khanh Hoa fishing boat. In particular, preserving tuna with ice (taking water from the sea to produce ice, no need to bring ice from shore) has been mastered by the institute, successfully manufacturing ice production equipment. In addition, Nano UFB technology (using Nano Nitrogen gas to preserve seafood) is also mastered by the institute and has been certified as a technical advancement to serve the preservation of yellowfin tuna.
This is a technology that creates a low-temperature storage environment, inhibiting oxygen to preserve fish better, suitable for long-term sea voyages of ocean tuna fishing. After successful testing, this preservation model will be popularized and replicated among local fishermen. If the model is successfully tested and put into use, fish quality will no longer be a concern for many fishermen and will also contribute to increasing competitive advantage when exporting to countries outside the region.
Source: Báo Nhân Dân
