Subchilling of brown trout (Salmo trutta) with refrigerated seawater and subsequent effects on its quality and shelf life.

Brown trout (Salmo trutta) is an emerging species for aquaculture in freshwater systems in Norway sold at the high-end fresh markets in Europe. Therefore, efficient temperature management is crucial to prevent fish spoilage during transportation and storage. This study investigated the impact of sub-chilling on the quality and shelf life of whole gutted brown trout, including temperature abuse during transport.

An amplified derepression controller with multisite inhibition and positive feedback.

How organisms are able to maintain robust homeostasis has in recent years received increased attention by the use of combined control engineering and kinetic concepts, which led to the discovery of robust controller motifs. While these motifs employ kinetic conditions showing integral feedback and homeostasis for step-wise perturbations, the motifs' performance differ significantly when exposing them to time dependent perturbations. One type of controller motifs which are able to handle exponentially and even hyperbolically growing perturbations are based on derepression.