Subcellular Membrane Integrity of Atlantic Cod (Gadus morhua) Myotomal Tissue: Effects of Frozen Storage

• Published in: Journal of Food Science
• Main Authors: ABLETT, R.ICHARD F., GOULD, S.TEPHEN P.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1992
• Subjects: atlantic cod; Gadus morhua
• Online Access: http://dx.doi.org/10.1111/j.1365-2621.1992.tb08104.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2621.1992.tb08104.x; http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1365-2621.1992.tb08104.x/fullpdf

ABSTRACT The influence of frozen storage on the ultrastructural integrity of Atlantic cod muscle tissue membranes was investigated following three methods of freezing and retention for 12 wk at ‐ 12°C and ‐ 35°C. In comparison to controls (0 wk), extensive membrane condensation associated with sarcoplasmic reticulum was apparent in samples stored for 12 wk at ‐ 12°C. The effects were observed to a much lesser extent in samples retained for 12 wk at – 35°C. It was apparent that cryogenic, plate or blast freezing techniques showed no measurable influence on the observed membrane condensation and that such ultrastructural changes resulted as a consequence of relatively high (–12°C) subfreezing temperatures.