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Influence of storage temperature on the quality of salted mackerel ( Rastrelliger kangurta ) and pink perch ( Nemipterus japonicus )
Author(s) -
Srikar L. N.,
Khuntia B. K.,
Reddy G. V. S.,
Srinivasa B. R.
Publication year - 1993
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740630309
Subject(s) - peroxide value , food science , chemistry , water activity , mackerel , water content , perch , salting , moisture , fatty acid , fish <actinopterygii> , fishery , biology , biochemistry , geotechnical engineering , organic chemistry , engineering
Dry‐salted mackerel and pink perch were stored at two temperatures: ambient (26·8 ± 3·3°C) and 2·5 ± 1°C. Changes in moisture content, salt content, water activity ( a w ), peroxide value (PV), free fatty acid content (FFA), total volatile base nitrogen (TVBN) content, halophilic bacterial count and sensory scores for overall acceptability were studied. Loss of moisture and absorption of salt were considerably higher in the products stored at ambient temperature. The decrease in a w was more pronounced at ambient temperature than at the lower temperature. Although the chemical indices of freshness (PV, FFA and TVBN) and the halophilic counts showed increasing trends, they were considerably lower in the products stored at the lower temperature. Sensory evaluation for overall acceptability indicated that storage at the lower temperature could considerably extend the shelf‐life of salted fish.