Inosine Monophosphate and Hypoxanthine as Indices of Quality of Shrimp ( Penaeus Merguensis )

ABSTRACT Changes in inosine‐monophosphate (IMP) and hypoxanthine (Hx) concentrations in shrimp muscle stored in ice for up to 20 days were correlated with taste panel evaluations of the sensory quality. A good correlation exists between IMP concentrations and flavor as well as total sensory scores. Absence of IMP in shrimp muscle and values of 2 micromole Hx, and over, per gram of shrimp muscle indicate doubtful quality. Measurement of Hx shows potential value as an index in assessing quality of ice‐stored shrimp.