Effect of Freezing and Thawing on the Histology and Ultrastructure of Buffalo Muscle

  • Sen, A.R. (Division of Livestock Products Technology, Indian Veterinary Research Institute) ;
  • Sharma, N. (Director, NDRI, Karnal)
  • Received : 2003.05.21
  • Accepted : 2004.05.25
  • Published : 2004.09.01


Histology and transmission electron microscopy studies were carried out on buffalo muscles that were subjected to repeated freeze-thaw cycles at -10 and $-18^{\circ}C$. In the first freeze thaw cycle ($-10^{\circ}C$) structures of muscle showed slight change and closely resembled to those of normal muscle. There were frequent gaps in the half way across the fibres and some cracks in individual fibre were also noticed in second freeze thaw cycle. In the muscle frozen at $-18^{\circ}C$, more pronounced shrinkage with extensive damage of fibres with tearing was observed. The interfibrillar gaps were wider, shrinkage and tearing of the fibres were more distinct after second freeze-thaw cycle. After the second cycle, the interior portion showed large scale degradation of the ultrastructure. Our studies of buffalo muscle showed that under the proper condition, little structural damage takes place in the meat histology and ultrastructure under repeated freeze-thaw conditions. This study adds continued weight to the evidence that limited freeze-thaw cycles will not deteriorate the quality of meat.


Freezing;Buffalo Muscle;Thawing;Histology;Ultrastructure


Supported by : Council of Scientific and Industrial Research


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