LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Changes in the thermal stability and structure of protein from porcine longissimus dorsi induced by different thawing methods.

Photo from wikipedia

This study investigated the effects of thawing methods on the thermal stability and structure of myofibrillar protein (MP) from porcine longissimus dorsi. DSC was used to evaluate the thermal stability… Click to show full abstract

This study investigated the effects of thawing methods on the thermal stability and structure of myofibrillar protein (MP) from porcine longissimus dorsi. DSC was used to evaluate the thermal stability (Tmax, △H) of MP. FT-IR, Raman, UV absorption, and fluorescence spectra were utilized to assess the secondary and tertiary structures of MP. Changes in the thermal stability and structure of MP after thawing were significant (P < 0.05), except for the vacuum thawing (VT) samples. The lowest Tmax and △H were obtained through microwave thawing (MT). The decreases in α-helices, β-sheets, fluorescence intensity, and total sulfhydryl content, and increases in the intensity of the SS stretching band and Ca2+-ATPase activity illustrated that secondary structure destruction, tertiary structure unfolding, and disulphide bond cross-linking occurred during thawing. The thawing process caused thermal stability degradation and structure destruction; the largest changes in all indexes of MP were obtained through MT.

Keywords: stability structure; protein porcine; structure; thermal stability; thawing methods

Journal Title: Food chemistry
Year Published: 2020

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.