The objective of this study was to investigate the effect of variable storage conditions on shelf life and
quality characteristics of frozen shrimp. Colour change measured both instrumentally and visually was
modelled by apparent zero order equations and showed high dependence on temperature. TVB-N and
TMA values increased with storage time and were modelled with apparent first order equations. Taste
and overall acceptability scores of frozen shrimp had high correlation with TVB-N and TMA values. The
temperature dependence of quality deterioration was adequately modelled by the Arrhenius equation
and activation energy ranged from 118 to 156 kJ/mol for the different indices measured. The developed
models were validated in fluctuating time–temperature conditions in order to establish their applicability
in the real cold chain.