1986

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The Preservation of some Indian Freshwater Fish
(Society of Fisheries Technologists (India) Cochin, 1986) DURAIRAJ, S; KRISHNAMURTHI, S
Quality changes in Labeo rohita; Cirrhinus mrigala and Tilapia mossambica were studied during storage in ice and at ambient temperature (29-32°C). After 10 h at ambient temperature L. rohita and T. mossambica were completely spoiled, while C. mrigala became unacceptable within 11 h. Organoleptic examination, total volatile base nitrogen and total bacterial c:ounts showed that L. rohita (0.5 kg and above) and C. mrigala (0.5 kg and above) were acceptable upto 7 to 8 days of storage in ice in popular container (Bamboo basket) lined with palmyrah mat) at ambient temperature while T. mossambica (30-40 g) was acceptable upto 6 days. Influence of size of fish on shelf life in ice studied with reference to L. rohita showed that fishes below 500 g were acceptable upto 6 days of storage in ice in popular container at ambient temperature while those above 1000 g size were acceptable upto 8 days. Pro"Vision of an alkathene lining to the popular container extended the storage life of L. roh;ta from 6 days to 8 days. Pre-chilled and iced L. rohita had a longer shelflife (9 days) than merely iced sample (7 days)