By Dr C N Ravishankar
The author is Scientist & Head, Central Institute of Fisheries Technology, Cochin,
Antarctic krill is found in huge swarms in the waters of the Southern Ocean. The krill despite being a promising source of protein is still largely unfit for human consumption due to its high fluoride content, blackening and unpleasant flavour.
Antarctic krill, Euphausia superba, a promising sources of protein, demands sustainable utilisation at a time when most conventional resources are reaching or exceeding optimal limits. The primary problem in utilising krill lies in its intense postmortem proteolytic activity. Also its high fluoride content, excessive loss of exudates during storage at non freezing temperature, blackening and development of unpleasant flavour need to be contended with during krill processing. The present investigation pertains to the study of various aspects of krill processing...