ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The ultrastructural changes of 0°C blast-frozen and brine-immersed (23% NaCl at 0°C) blue crab (Callinectes sapidus) levator muscle were studied by transmission electron microscopy in comparison to unfrozen, prerigor muscle. Characteristic, striated skeletal muscle features were seen in fresh muscle, including double M-lines and Z-tubules seen in some Crustacea. Changes in structural organization caused by blast freezing (slow method) included decreased density and change in shape of myofibrils and Z-Lines, and disappearance of the sacroplasmic matrix. Disintegration of Z-lines, myofibrils, and sarcoplasm was less severe due to brine-immersion freezing (rapid method). Distances between myofibrils were compacted in brine-immersed blue crab muscle samples, related to firmer objective texture measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1986.tb13820.x
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