Very Rapid Accumulation of Hypoxanthine in the Muscle of Redfish Stored in Ice

Abstract
Maximum hypoxanthine [Hx] in many species of fish is reached after the point of inedibility whereas the autolytic enzyme dephosphorylation of IMP and Hx production were rapidly completed in redfish in 4 days, several days before the point of inedibility. It is important to establish the rate of nucleotide catabolism in untried species before applying the Hx test as an index of freshness or quality.