ABSTRACT
Human consumption of processed fish results in huge amounts of waste in the form of skin, head, viscera, scales, bones and frames. The amount of the waste depends upon the type and size of fish and the amount of product. In case of industrial fish processing, there is a yield of 40% edible flesh and the remaining 60% is waste, whereas the amount of annual discard from world fisheries was estimated to be 20 million tons, including waste or by-product. There is an intense need and scope for high-value products from fish waste, therefore different technologies have been developed to utilize processing waste. Fish processing waste is rich in protein, fat and minerals, whereas shellfish processing waste comprises head and shell, which can be converted into many products. Therefore, in this chapter various value-added products from fish solid waste are discussed in detail.
