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  • Title: Effect of modified atmosphere and vacuum packaging on some quality characteristics and the shelf-life of "morcilla", a typical cooked blood sausage.
    Author: Cachaldora A, García G, Lorenzo JM, García-Fontán MC.
    Journal: Meat Sci; 2013 Feb; 93(2):220-5. PubMed ID: 22999312.
    Abstract:
    The effect of modified atmosphere and vacuum packaging on the shelf-life of "morcilla", a traditional cooked blood sausage, was investigated. A total of 99 "morcillas" were packaged under vacuum and in modified atmosphere using three different gas mixtures: 15:35:50/O(2):N(2):CO(2) (atmosphere 1), 60:40/N(2):CO(2) (atmosphere 2) and 40:60/N(2):CO(2) (atmosphere 3), and stored during 2, 4, 6 and 8 weeks at 4 °C. Shelf life evaluation was based on pH, water activity (a(w)), colour (CIE L*, a*, b*, C* and h*), TBARS formation and microbial counts. The results indicated that, in general, storage time affected (P<0.05) all parameters whereas no significant differences were observed (P>0.05) among packaging conditions. Based on the microbial counts, the shelf-life of "morcilla" would be greater than 8 weeks for all packaging conditions. Samples packaged with high CO(2) concentrations (40:60/N(2):CO(2)) showed the lowest values of TBARS at the end of storage.
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