Antioxidant, ACE-Inhibitory, and Antimicrobial Activities of Peptide Fractions Obtained From Dried Giant Squid Tunics. Issue 3 (2nd April 2016)

• Record Type: Journal Article
• Authors: Mosquera, Mauricio; Giménez, Begoña; Ramos, Sonia; López-Caballero, Maria Elvira; Gómez-Guillén, María del Carmen; Montero, Pilar
• Is Part Of: Journal of aquatic food product technology. Volume 25:Issue 3(2016)
• Page Start: 444
• Page End: 455
• Publication Date: 2016-04-02
• Subjects: Squid tunic hydrolysates -- ABTS -- ACE-inhibitory -- antimicrobial; Fishery processing -- Periodicals; Animal products -- Periodicals; Plant products -- Periodicals; 664.9405
• DOI: 10.1080/10498850.2013.819543
• Languages: English
• ISSNs: 1049-8850

Abstract

ABSTRACT: 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.