title: Improvement of the antimicrobial and antioxidant activities of camel and bovine whey proteins by limited proteolysis.
abstract: The compositions and structures of bovine and camel milk proteins are different, which define their functional and biological properties. The aim of this study was to investigate the effects of enzymatic hydrolysis of camel and bovine whey proteins (WPs) on their antioxidant and antimicrobial properties. After enzymatic treatment, both the antioxidant and the antimicrobial activities of bovine and camel WPs were improved. The significantly higher antioxidant activity of camel WPs and their hydrolysates as compared with that of bovine WPs and their hydrolysates may result from the differences in amounts and/or in accessibilities of antioxidant amino acid residues present in their primary structures and from the prevalence of alpha-lactalbumin and beta-lactoglobulin as proteolytic substrates in camel and bovine whey, respectively. The results of this study reveal differences in antimicrobial and antioxidant activities between WP hydrolysates of bovine and camel milk and the effects of limited proteolysis on these activities.
authors.affiliation: Department of Food Science and Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Salami
authors.forename: Ali Akbar
authors.initials: AA
authors.lastname: Moosavi-Movahedi
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ehsani
authors.forename: Reza
authors.initials: R
authors.lastname: Yousefi
authors.forename: Thomas
authors.initials: T
authors.lastname: Haertlé
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Chobert
authors.forename: Seyed Hadi
authors.initials: SH
authors.lastname: Razavi
authors.forename: Robert
authors.initials: R
authors.lastname: Henrich
authors.forename: Saeed
authors.initials: S
authors.lastname: Balalaie
authors.forename: Seyed Ahmad
authors.initials: SA
authors.lastname: Ebadi
authors.forename: Samineh
authors.initials: S
authors.lastname: Pourtakdoost
authors.forename: Amir
authors.initials: A
authors.lastname: Niasari-Naslaji
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents / Q000737:chemistry* / Q000494:pharmacology; D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology; D002162:Camelus; D002417:Cattle; D004926:Escherichia coli / Q000187:drug effects; D008894:Milk Proteins / Q000737:chemistry* / Q000494:pharmacology; D011499:Protein Processing, Post-Translational; D000067816:Whey Proteins
chemical_list: D000890:Anti-Infective Agents; D000975:Antioxidants; D008894:Milk Proteins; D000067816:Whey Proteins