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Developing a Quality Index grading tool for hybrid striped bass ( Morone saxatilis × Morone chrysops ) based on the Quality Index Method
Author(s) -
Nielsen Durita,
Green David
Publication year - 2007
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.2006.01216.x
Subject(s) - morone , bass (fish) , fishery , index method , morone saxatilis , mathematics , statistics , biology , production (economics) , economics , macroeconomics
Summary A Quality Index Method (QIM) scheme was developed for hybrid striped bass ( Morone saxatilis × M. chrysops ). The new scheme is a convenient way to estimate storage time and remaining shelf life of fresh hybrid striped bass stored in ice. It consists of eight descriptors resulting in a total allowable score or Quality Index (QI) of fourteen points. Partial least squares regression (PLSR) was used to separate the effects of storage time and origin of fish. The calculated QI related linearly with storage days (QI = 0.483 × days in ice + 1.568, r 2 = 0.934). Storage time of unknown samples can be predicted from this relationship with a prediction error of ±1.2 days. Using Quantitative Descriptive Analysis (QDA), the maximum shelf life of fresh hybrid striped bass was determined to be 14 days in ice.