Quality improvement and process feasibility of quick-frozen vacuum-packed tuna steaks

Teixeira, A. A. and Dolande, J. J. and Otwell, W. Steven (1986) Quality improvement and process feasibility of quick-frozen vacuum-packed tuna steaks. Gainesville, FL, Florida Sea Grant College, ( Florida Sea Grant College Technical Paper, 39)

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Abstract

Vacuum-packed Yellowfin tuna steaks were individually frozen in either liquid Freon or in an air storage freezer, and evaluated for keeping quality after 1, 3, and 6 months of frozen storage (-27OC). The resulting freezing rates were used to project the economic feasibility of a small scale commercial processing plant. Regardless of freezing method the vacuum-packed steaks demonstrated keeping quality comparable to fresh control samples handled as in normal distribution channels. The estimated cost to manufacture allowed sufficient profit at competitive selling prices to generate a rate of return of 132%. This would pay back the estimated cost of plant and equipment in less than one 6-month season of operation at full capacity (16pp.)

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