Valorisation of Basa fish ( <i>Pangasius bocourti</i> ) waste: Oil extraction and encapsulation
Ashika Debbarma, Vivekanand Kumar, Prashant Mishra, Aarti S. Kakatkar, Raj Kamal Gautam, Farhat Umra, Suchandra Chatterjee
Abstract
Summary Fish waste is a source of various nutraceuticals and bioactive compounds such as polyunsaturated fatty acids (PUFAs), peptides, vitamins and minerals. This waste can be utilised for the extraction of fish oil for the preparation of value‐added supplements for humans. In this study, oil was extracted from wastes (bones, head and viscera) of Basa ( Pangasius bocourti ) fish and encapsulated with alginate as a coating material using the simple extrusion process. In total fatty acid composition, the most predominant was monounsaturated fatty acid (MUFA) (30.74–61.67%), followed by saturated fatty acid (SFA) (26.45–38.22%) and PUFA (7.03–21.01%) in different sections. Alginate concentration (2.5%) with oil loading of 30% showed higher emulsion stability with the least pore space, hence, considered optimum for encapsulation of oil. The encapsulated beads were stable up to 12 days as determined by peroxide value (18.67 ± 1.15 meq Kg −1 ), acid value (14.13 ± 0.35 mg KOH g −1 ) and free fatty acid value (8.42 ± 0.51%) when stored at room temperature.