Studies on phenoloxidase activity and its sensitivity to metabisulphite in frozen metapenaeus monoceros

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Date
1998
Authors
Chakrabarti, R.
Gupta, S.S.
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Publisher
Society of Fisheries Technologis(India)
Abstract
The incidence of black spot in frozen prawns was observed in many cases during thawing at tropical ambient temperatures. A dip in 0.5% (100% purity basis) sodium metabisulphite solution for 30 seconds controlled black spot in frozen Metapenaeus monoceros upto 10 months. Phenoloxidase activity in the shell extract of prawn showed a decreasing trend during frozen storage (-180C). The activity was lower in the sulphite treated sample when compared with the untreated sample. Residual sulphur dioxide in thawed meat was within permitted limits.
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Citation
Fish Technol. 35(1): 30-33