Antioxidant, ACE-inhibitory, and antimicrobial activities of peptide fractions obtained from dried giant squid tunics

Squid tunics were divided in two batches: freeze-dried and air-dried. Dried squid tunics were directly hydrolyzed with pepsin, Alcalase, and Esperase. Freeze-dried tunics showed better aptitude for hydrolysis than air-dried tunics. Pepsin showed the lowest efficiency in protein breakdown and gave hydrolysates with low antioxidant activity, whereas Alcalase and Esperase peptide fractions showed strong radical scavenging ability, ACE-inhibitory activity, and noticeable antimicrobial properties. B. cereus, B. coagulans, and D. hansenii were found to be the most sensitive bacteria. Dried squid tunics proved to be an alternative to a previously extracted gelatin for obtaining bioactive peptides.

Bibliographic Details

Main Authors:	Mosquera, Mauricio, Giménez, Begoña, Ramos, Sonia, López Caballero, M. E., Gómez Guillén, M. C., Montero García, Pilar
Format:	artículo biblioteca
Published:	Taylor & Francis 2016
Subjects:	ACE-inhibitory, ABTS, Squid tunic hydrolysates, Antimicrobial,
Online Access:	http://hdl.handle.net/10261/140054
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