Abstract
The chemical and rheological properties of spent hen proteins recovered by acid and alkaline extraction have been studied with/without cryoprotectants (CP) after 3weeks of frozen storage. Four pH values (2.0, 2.5, 11.5, and 12.0) were used for extraction. CP addition prevented freeze-induced denaturation and oxidation in all extracted proteins, as revealed by significant increases in reactive sulphydryl groups (p<0.0001), and a decrease in the formation of carbonyl groups (p<0.0001). The alkaline extracted proteins with CP formed more viscoelastic gels compared to the others, while samples without CP failed to form a gel network. FTIR of the protein isolates with CP showed a protective effect on the secondary structure of the isolated proteins. Scanning electron micrographs showed a protective shield of CP around the isolated proteins.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
