The Hydrolysates from Fish By-Product, An Opportunity Increasing

Abstract

The fishery industries have continuously increased over the last decade. This growth comes accompanied by a high volume of by-products released to environment, because these industries discard between 60 and 70% of their production as waste. This waste includes fish whole or part from these such as fillet remains (15–20%), skin and fins (1–3%), bones (9–15%), heads (9–12%), viscera (12–18%) and scales (5%). This by-products are rich in proteins and lipids which of several nature, which can be recovered to obtain compounds of high added value. In this chapter, some methods to recover compounds from fish by-products will be discussed. Among others, will be discussed topics about postharvest of fish, by-product releasing, enzymatic hydrolysis of by-product and bioactive peptide obtaining from fish waste.

In vitro, ex vivo and in vivo antihypertensive evaluation of enzymatic hydrolysates of Californian red worm (Eisenia fetida) proteins

“…As a result, the global demand for high-quality proteins is ever-increasing, both for animal feed and human consumption [ 9 ]. Moreover, proteins are a substrate for enzymatic hydrolysis, from which bioactive peptides and other products can be obtained [ 10 ]. This process involves the cleavage of a peptide bond through the action of water and enzymatic or chemical catalysis [ 11 ].…”