Reclamation of Loligo duvauceli (Orbigny, 1848) digestive gland (Liver) waste for the extraction of oil and its lipid composition

Abstract

In the present study an attempt was made to isolate the fatty acids from the digestive gland of cephalopod squid Loligo duvauceli. Generally fish and their by-products are the major natural sources of omega-3 polyunsaturated fatty acids, particularly EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), both of them plays a vital role in the food and pharmaceutical industries. The percentage yield of oil extracted was found to be 40.17. In the liver oil, the total lipids, triglycerides, cholesterol, HDL, LDL, VLDL and free fatty acid contents were found to be 2.445 mg g-1, 295.45, 204.28, 45.88 0, 99.31, 59.09 and 10.67 mg dL-1, respectively. The fatty acid profile was also analyzed both quantitatively and qualitatively. The Saturated Fatty Acid (SFA), PUFA (Poly Unsaturated Fatty Acid) and (Multi Unsaturated Fatty acids) MUFA were found to be 70.31, 2.30 and 6.99%, respectively. In the search of new potential source for fish oil, the present study brought out the possibility of the usage of digestive gland of cephalopod as a potent alternative source. © 2013 Asian Network for Scientific Information.