Ovalbumin and Kappa-Carrageenan Mixture Suppresses the Oxidative and Structural Changes in the Myofibrillar Proteins of Grass Carp (<i>Ctenopharyngodon idella</i>) during Frozen Storage

• Main Authors: Noman Walayat (Author), Xiukang Wang (Author), Asad Nawaz (Author), Zhongli Zhang (Author), Abdullah (Author), Ibrahim Khalifa (Author), Muhammad Hamzah Saleem (Author), Bilal Sajid Mushtaq (Author), Mirian Pateiro (Author), José M. Lorenzo (Author), Sajid Fiaz (Author), Shafaqat Ali (Author)
• Format: Book
• Published: MDPI AG, 2021-07-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

This study was done to analyze the cryoprotective influence of ovalbumin (OVA) with kappa-carrageenan (KC) in grass carp myofibrillar proteins during frozen storage. Ca²⁺-ATPase activity of MP was significantly reduced due to protein denaturation and showed a direct association with decreased sulphydryl (SH) contents and tertiary structural properties. Besides that, an increase in carbonyl, surface hydrophobicity, and dityrosine contents was observed. The addition of OVA-KC significantly restricted the decline in Ca²⁺-ATPase and SH groups, which were further confirmed by the retarded increase in carbonyls. Furthermore, the addition of OVA-KC increased the stability of α-helix contents. Moreover, MP treated with 6% OVA-KC also improved intermolecular interaction forces linked with gelling and water holding properties of MP. Therefore, it can be concluded that OVA-KC could be used as an effective cryoprotectant in fish and related products for preservation and commercialization.

Item Description

10.3390/antiox10081186
2076-3921