Effect of microbial transglutaminase on the natural actomyosin cross-linking in chicken and beef

Meat Science ◽  
2009 ◽  
Vol 82 (2) ◽  
pp. 170-178 ◽  
Author(s):  
Abdulatef Mrghni Ahhmed ◽  
Tetsuo Nasu ◽  
Dang Quang Huy ◽  
Yoshito Tomisaka ◽  
Satoshi Kawahara ◽  
...  
2004 ◽  
Vol 52 (5) ◽  
pp. 1170-1176 ◽  
Author(s):  
Van-Den Truong ◽  
Debra A. Clare ◽  
George L. Catignani ◽  
Harold E. Swaisgood

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1508
Author(s):  
Yang Tian ◽  
Chenglong Liu ◽  
Wentong Xue ◽  
Zhongfu Wang

As the one of the major allergens in peanut, the allergenicity of Ara h 1 is influenced by its intrinsic structure, which can be modified by different processing. However, molecular information in this modification has not been clarified to date. Here, we detected the influence of microbial transglutaminase (MTG) catalyzed cross-linking on the recombinant peanut protein Ara h 1 (rAra h 1). Electrophoresis and spectroscopic methods were used to analysis the structural changes. The immunoreactivity alterations were characterized by enzyme linked immunosorbent assay (ELISA), immunoblotting and degranulation test. Structural features of cross-linked rAra h 1 varied at different reaction stages. Hydrogen bonds and disulfide bonds were the main molecular forces in polymers induced by heating and reducing. In MTG-catalyzed cross-linking, ε-(γ-glutamyl) lysine isopeptide bonds were formed, thus inducing a relatively stable structure in polymers. MTG catalyzed cross-linking could modestly but significantly reduce the immunoreactivity of rAra h 1. Decreased content of conserved secondary structures led to a loss of protection of linear epitopes. Besides, the reduced surface hydrophobic index and increased steric hindrance of rAra h 1 made it more difficult to bind with antibodies, thus hindering the subsequent allergic reaction.


2009 ◽  
Vol 112 (2) ◽  
pp. 354-361 ◽  
Author(s):  
Abdulatef Mrghni Ahhmed ◽  
Rumiko Kuroda ◽  
Satoshi Kawahara ◽  
Kazuyoshi Ohta ◽  
Koji Nakade ◽  
...  

2014 ◽  
Vol 38 (2) ◽  
pp. 174-178 ◽  
Author(s):  
Doris Jaros ◽  
Uwe Schwarzenbolz ◽  
Norbert Raak ◽  
Jürgen Löbner ◽  
Thomas Henle ◽  
...  

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