LAUSR

Brazil stands out in the international market in terms of production and export of poultry products, is the second largest producer of chicken in the world, with 13.056 million tons in 2017, of which, 32.3% was destined for exportation (ABPA, 2017; Campos et al., 2018). About 20% of chicken production in Brazil is transformed into mechanically separated meat (MSM) (Negrão et al., 2005) and the residue generated in the extraction process is in the order of 15% to 45%. Much of this waste is used to produce feed because of its low value. Consequently, obtaining collagen and hydrolysates from this raw material would add considerable value to this waste. Some studies have shown promisingly the extraction of collagen and hydrolyzed from chicken slaughter residues, such as feet (Araújo et al., 2018; Chakka et al., 2017), skin (Aksun Tümerkan et al., 2019; Dechsle et al., 2016), bones (Dechsle et al., 2016), among others, however chicken CMS residue has not yet been explored.