26There is a large generation of meat by-products, not only from slaughtering but also in 27 the meat industry from trimming and deboning during further processing. This results in 28 extraordinary volumes of by-products that are primarily used as feeds with low returns 29 or, more recently, to biodiesel generation. The aim of this work was to review the state 30 of the art to generate bioactive peptides from meat industry by-products giving them an 31 added value. Hydrolysis with commercial proteases constitute the typical process and a 32 variety of peptides result from such extensive proteolysis. This review focuses on the 33 identification of a large number of peptides derived from the enzymatic hydrolysis of 34 specific meat by-products and its characterisation for bioactivity. The potential of some 35 of the identified peptides to be used as bioactive supplements in foods has also been 36 considered. 37 38 39
KEYWORDS 40Peptides, bioactive peptides, protein hydrolysis, proteolysis, mass spectrometry, 41 bioactivity, antihypertensive peptides, antioxidant peptides, antimicrobial peptides
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