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Comparison of Shelf Life and Quality of Mullet Stored at Zero and Subzero Temperature
Author(s) -
LEE C. M.,
TOLEDO R. T.
Publication year - 1984
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1984.tb12411.x
Subject(s) - mullet , shelf life , mugil , fish <actinopterygii> , fishery , food preservation , chemistry , food science , biology
The shelf life and quality of mullet ( Mugil spp.) caught off the Southeast Atlantic coast were evaluated during storage at subzero temperature (‐2°C) either unpackaged or vacuum packed in iolon film. Subzero temperature was maintained by storing fish in either 2% NaCl‐ or 7% propylene glycol‐ice. Shelf life of fish stored in ‐2°C ice was 10 days, compared to 7 days for the fish stored in 0°C ice. Extension of shelf life was attributed to delayed microbial growth and slow biochemical changes. Structural changes due to ice crystals at subzero temperature storage appeared to be minor compared to those which occurred during freezing at ‐20°C as revealed by microscopic examination. The minor structural changes along with insignificant biochemical changes resulted in products having acceptable eating quality for 10 days.