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4 °C - the National Sea Grant Library

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79 -<br />

78 -<br />

77 -<br />

e, 0 76 -<br />

::<br />

z<br />

75 -<br />

z 74 -<br />

b<br />

2 73 -<br />

:<br />

72 -<br />

L ValuesofPackagedCrabMeat<br />

Stored at 0 C<br />

'j.. Heat Shrink<br />

Aluminum End<br />

0 2 4 6 8 10 12 14 16 18<br />

Days<br />

Figure 9. Mean Hunter L color values determined for<br />

packaged crab meat stored at O<strong>°C</strong> in <strong>the</strong> control and<br />

three tamper-evident containers<br />

significant at <strong>the</strong> 0.05 level and had correlation coefficients<br />

greater than 0.7. Combined percent carbon dioxide (0.7381, aerobic<br />

plate counts (0.8121, and ammonia concentrations (0.8451, correlated<br />

well with storage day for all containers. Psychrotrophic plate<br />

counts (O.956), aerobic plate counts (0.9191, and oxygen levels<br />

(-0.868) had <strong>the</strong> highest correlation coefficients. The putrid odors<br />

recorded from control packages also correlated well with storage<br />

time (0.702).<br />

Refriqerated Storaqe<br />

As shown in <strong>the</strong> iced storage part of <strong>the</strong> study <strong>the</strong>re were no<br />

consistent pH differences among <strong>the</strong> containers. However, pH levels<br />

9.8 - -<br />

9.6 -<br />

9.4 -<br />

9.2 -<br />

9.0 -<br />

8.8 -<br />

7.6 -<br />

7.4 -<br />

pH Values of Packaged Crab Meat<br />

Stored at 4 C<br />

;I ggk:& 1<br />

I / I<br />

0 2 4 6 8 10 12 14<br />

Days<br />

Figure 10. Mean pH levels of packaged crab meat<br />

stored at 4<strong>°C</strong> in <strong>the</strong> control and three tamper-evident<br />

containers

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