Intermolecular interaction in the hybrid gel of scallop (Patinopecten yessoensis) male gonad hydrolysates and κ‐carrageenan

摘要: Various bond disrupting agents including NaCl, GuHCl, urea, and SDS were introduced to investigate the intermolecular interactions between scallop (Patinopecten yessoensis) male gonad hydrolysates (SMGHs) κ-carrageenan (κ-C), which monitored by changes in rheological property, water distribution, conformation characterization microstructure using rheometer, low field-NMR relaxometry, Fourier transform infrared (FTIR) spectroscopy, cryo-scanning electron microscopy (cryo-SEM), confocal laser scanning microscopy. The results showed that deteriorated property of SMGHs/κ-C a dose-dependent manner. Indeed, at same concentration 2 M, NaCl more obviously than GuHCl urea. In addition, with possessed higher relaxation times T21 T23 , indicating migration free direction bound water. Moreover, FITR red-shift regions (amide A B bands), amide I II bands, indicated breakdown hydrogen bonds electrostatic interactions, disordered structure various agents. Furthermore, cryo-SEM change from homogeneous network looser ruptured one larger void spaces, disrupted tattered Additionally, as well less aggregates stained RITC These suggest would be mainly involved maintenance gel network. This study could provide theoretical methodological basis for hydrogel products modified strength understanding system. PRACTICAL APPLICATION: Scallop gonads high-protein part scallop, is usually discarded during processing despite its edibility. recent years, are regarded good sources develop protein matrices due their high content numerous nutrients. this study, obtained trypsin-treated process. considerable gelation behavior SMGHs potentially utilized novel thickener additive production kamaboko gels, can, sausage spread marine flavor.