The present work was undertaken to find a suitable
objective quality control method for use in the crustacean
markets and in similar situations.
Two main types of objective methods used for fish are
Available—these are the chemical methods measuring either
the trimethylamine-nitrogen (TMA-N) or the hypoxanthine (Hy)
concentrations. However, the "K value" is a more simple
method for evaluating the nucleotide degradation than the
measurement of (Hy) alone, hence the "K value" was preferred in this work.
The "Ornithine Equivalent", the separated ornithine and
proline, pH, TMA-N and "K value" of pink (Pandalus montagui)
and brown (Crangon crangon) shrimps were investigated. These
different measurements were assessed as possible methods for the
routine quality control of shrimps.
A Master's Thesis. Submitted in partial fulfilment of the requirements for the award of Master of Philosophy at Loughborough University.