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Addition of collagen to heavy salted and lightly salted, chilled and ...

Addition of collagen to heavy salted and lightly salted, chilled and ...

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Contents<br />

Objectives ................................................................................................................................................ 1<br />

Material <strong>and</strong> methods ............................................................................................................................. 2<br />

Experimental design ............................................................................................................................ 2<br />

Raw material ....................................................................................................................................... 3<br />

Processing ............................................................................................................................................ 3<br />

Weighing .............................................................................................................................................. 4<br />

Sampling .............................................................................................................................................. 4<br />

Weight changes <strong>and</strong> cooking yield ...................................................................................................... 4<br />

Analysis <strong>of</strong> chemical composition ....................................................................................................... 5<br />

Water holding capacity ....................................................................................................................... 5<br />

Microbial analysis ................................................................................................................................ 5<br />

Analysis <strong>of</strong> TVB‐N <strong>and</strong> TMA ................................................................................................................. 6<br />

Analysis <strong>of</strong> TBARS ................................................................................................................................ 6<br />

Measurement <strong>of</strong> pH ............................................................................................................................ 6<br />

Statistical analysis <strong>of</strong> data ................................................................................................................... 6<br />

Results <strong>and</strong> discussion ............................................................................................................................. 7<br />

Raw fillets ........................................................................................................................................ 7<br />

Chilled fillets .................................................................................................................................... 7<br />

Frozen fillets .................................................................................................................................. 12<br />

Salted fillets ................................................................................................................................... 13<br />

Conclusion ............................................................................................................................................. 15<br />

Acknowledgement ................................................................................................................................. 15<br />

References ............................................................................................................................................. 16

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