Nutritional composition of liver (Digestive gland) from thondi squid (Sepioteuthis lessoniana)

Abstract

The present study was undertaken to investigate the nutritional composition such as protein, lipid, carbohydrate, and ash of <em>Sepioteuthis lessoniana</em> liver. The liver was collected from the fish landing centre and the proximate composition total protein, carbohydrate and lipid content were found to be 31.16 ± 0.28%, 3.9 ± 0.05% and 21.06 ± 0.11%, respectively. The moisture and ash content of the <em>S. lessoniana</em> liver were recorded as 52.1 ± 0.17 % and 8.03 ± 0.05 %, respectively. The heavy metal content was estimated by acid digestion method and was found to be as follows: Cd-0.020 ppm, Cu-2.723 ppm, Mn-1.121 ppm, Ni-0.109 ppm, Pb-0.190 ppm, and Zn - 0.522 ppm. The present study concluded that the <em>S. lessoniana</em> liver (non-edible part) is suitable for human consumption, and is good for aquaculture and poultry feed formulations.