Changes in Biochemical Composition in Indian Major Carps in Relation to size
Changes in Biochemical Composition in Indian Major Carps in Relation to size
Date
2001
Authors
Sankar, T.V
Ramachandran, A
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Total biochemical composition of freshwater major carps, Labeo rohita -(rohu); Catla catla
(catla); Cirrhinus mrigala (mrigal), in relation to size was evaluated. The water soluble
nitrogen iraction constituted about 21% of the total nitrogen. Salt soluble fraction
constituted 55 - 60% of the total nitrogen. Non-protein nitrogen represented 12% of the
total nitrogen in all the cases except mrigal of small size (9.36%). The insoluble connective
tissue contributed to 2-3 per cent of total nitrogen. The monounsaturated fatty acids (MUFA)
formed 31-39% of the total fatty acids and 60-68% of the MUFA in freshwater carps was
C18:l. The essential amino acids contributed to 41 to 51% of the total amino acids in
freshwater major carps. Aromatic amino acid content was slightly higher compared to
marine fishes while the proportion of proline was less. Variations in composition in relation
to size are discussed. The autolytic activity was significantly higher in small fish in all
the three species
Description
Keywords
Major carps, amino acidb, fatty acids, autolysis, rohu, cutala, mrigal
Citation
Fishery Tech 38(1):22-27