Antioxidant and Antihypertensive Properties from Muscle Hydrolysates of Farm Rainbow Trout

Fish proteins are a promising source for multifunctional bioactive peptide production. Thus, this work aimed to establish the potentiality of rainbow trout muscle protein for the obtention of antioxidant and antihypertensive hydrolysates. Alcalase application produced a hydrolysate with inhibition of angiotensin-converting enzyme equivalent to 56.43 ± 2.05% after one hour. The same hydrolysate exhibited a scavenging and ferric-reducing power of 2.65 ± 0.07 µM Trolox equivalents and 32.12 mM Fe2+ equivalents, respectively. Results showed that rainbow trout muscle could be essential for identifying peptides with bifunctional properties.