2 research outputs found
Melanosis inhibition and 4-hexylresorcinol residual levels in deepwater pink shrimp (Parapenaeus longirostris) following various treatments
Inhibition of melanosis was studied in pink shrimp (Parapenaeus longirostris) treated on shipboard with various concentrations of 4-hexylresorcinol (4-HR)-based formulations. Treatments, applied by dipping and dusting, were carried out at sea immediately following the catch. A selection of the most effective treatments was made to determine the level of 4-HR residues in the muscle and viscera. 4-Hexylresorcinol proved effective at extending shelf-life over that of untreated shrimp at all the concentrations tested. However, the minimum dose of 4-HR to avoid melanosis for at least one week was found to be 0.5%, with a residual level in muscle ranging from â80 to 90 mg/kg at day 2 of storage to >200 mg/kg after 7 days. Residues around 2-3 mg/kg were shown to be effective to prevent melanosis in pink shrimp only for 2 days from a commercial point of view.This work was funded by the Consejerıa de Agricultura y Pesca, Junta de AndalucĂa [Department of Agriculture and Fisheries of the Autonomous Government of Andalusia] (Project 110105030020).Peer Reviewe
Statistical error model-based and GUM-based analysis of measurement uncertainties in nuclear safeguards â a reconciliation
At the occasion of the Consultants Group Meeting held to review the âInternational Target Values 2010 for Measurement Uncertainties in Safeguarding Nuclear Materialâ, discussions between experts highlighted theneed to improve communication between different safeguards measurement communities, e.g. laboratory analysts, non-destructive assay specialists, safeguards data evaluators, and to reconcile their approaches to estimating measurement uncertainties. The purpose of this paper is to contr ibute to reaching a common understanding of the terminology and methodologies used by different professional groups in the field of uncertainty quantification