Valorization of Aquatic Waste Biomass

The affluence of livestock in India is enormously conferred with the rate growing at 6% per annum. The livestock industry, especially the fisheries industries, contributes around 1.07% of GDP to the Indian economy. Environmental pollutions and the economy of the fish processing industry have a direct impact on the utilization of by-products. Besides pollution and hazard aspects, wastes from aquatic products have a potential role in converting into products of higher value. Treated aquatic waste has explored numerous applications among which the most important are animal feed, biodiesel/biogas, dietetic products (chitosan), natural pigments (after extraction), and cosmetics (collagen). Additives utilized in food industries are derived synthetically, which creates an adverse allergic condition and also a negative impact on some consumers. Such failings can be overcome by the additives derived from natural sources such as aquatic by-products and they paves way for the production of additives such as chitin and chitosan, hydroxyapatite, antifreeze proteins, astaxanthin, and enzymes. This chapter summarizes the potential utilization of aquatic wastes as food additives.