Effect of modified atmosphere packaging on the shelf life of rainbow trout (Oncorhynchus mykiss, Walbaum 1792) mince

摘要

This paper reports the effect of different concentrations of C02/N2 gases on chemical/sensorial stability, color properties (L*, a*, and b* values), and microbiological properties of trout mince stored at 3±1°C. The gas mixtures were used as follows; 60%CO2 + 40%N2 (B), 75%C02 + 25%N2 (C), 40%CO2 + 60%N2 (D). Control samples (A) were packed under atmospheric air. Analyses were carried out on the 1st, 4th, 8th, 12th, 16th, 20th, 24th and 28th days of storage. Among three modified atmosphere gas compositions, the best preservation method and most suitable gas concentration for trout mince were found in group C including 75% C02. The inconsumable day of trout mince packed with air (control) and MAPs (Modified Atmosphere Packaging) (group B, C, and D)were 12th, 16th, 24th, and 16th days, respectively.