Exploring the relationship between the interfacial properties and emulsion properties of ultrasound-assisted cross-linked myofibrillar protein
Exploring the relationship between the interfacial properties and emulsion properties of ultrasound-assisted cross-linked myofibrillar protein
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DOI：
10.1016/j.foodhyd.2023.109287
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发表时间：
2023-09
影响因子：
10.7
通讯作者：
Ye Tao;Jiaming Cai;Peng Wang;Jiahui Chen;Lei Zhou;Zongyun Yang;Xinglian Xu
中科院分区：
文献类型：
--
作者：
Ye Tao;Jiaming Cai;Peng Wang;Jiahui Chen;Lei Zhou;Zongyun Yang;Xinglian Xu
研究了超声波辅助交联MP在油水界面上的动态吸附过程与乳化液稳定性之间的关系。测定了交联MP（E-MP5）、MP交联前超声处理（E-UMP 5）和MP交联后超声处理（E-MPU 5）的界面压力、吸附动力学系数、动态流变性能以及相应的乳液性能、吸附蛋白质、微观流变性能和多重光散射。结果表明，乳液性能与MP的界面性能呈正相关。超声波处理能更有效地改善MP分子的界面性质和乳液稳定性。在超声组中，E-MPU 5组表现出最高的界面压力（15.81 mN/m）、扩散速率（Kdiff）、渗透速率（KP）、重排速率（KR）、结晶模量、弹性模量和E-π斜率（2.65）。相应地，基于Kdiff、KP和KR的变化，E-MPU 5制备的乳液具有最小的液滴尺寸（1.56 μm）、最大的吸附蛋白含量（93.08%）和最高的绝对zeta电位值。此外，E-MPU 5制造的乳液中降低的粘度、弹性指数、宏观粘度指数和浊度扫描稳定性指数表明形成了更稳定的乳液。因此，交联后超声处理可显著改善MP的界面吸附行为，界面性质的改善有利于乳液稳定性的提高。
This work aimed to illustrate the correlation between the dynamic adsorption process of ultrasound-assisted cross-linked MP on the oil-water interface and the stability of the fabricated emulsion. The interfacial pressure, adsorption kinetic coefficient, dynamic rheological properties of crosslinked MP (E-MP5), sonication before MP crosslinking (E-UMP5), and sonication after MP crosslinking (E-MPU5) and the corresponding emulsion properties, adsorbed proteins, microrheological properties, and multiple light scattering were determined. The results showed that the emulsion properties were positively correlated with the interfacial properties of MP. Ultrasound treatment could more effectively improve the interfacial properties and emulsion stability of the MP molecules than the Native treatment. Among the ultrasonic groups, the E-MPU5 group exhibited the highest interfacial pressure (15.81 mN/m), diffusion rate (Kdiff), penetration rate (KP), rearrangement rate (KR), dilatational modulus, elastic modulus, and E-π slope (2.65). Correspondingly, based on the change of Kdiff, KP, and KR, E-MPU5-fabricated emulsion had the lowest droplet size (1.56 μm), the maximum adsorbed protein content (93.08%), and the highest absolute zeta potential value. Additionally, the decreased viscosity, elastic index, macroscopic viscosity index, and turbiscan stability index in the E-MPU5-fabricated emulsion indicated the formation of a more stable emulsion. Therefore, this work suggests that sonication after crosslinking could greatly improve the interfacial adsorption behavior of MP, and the improvement of interfacial properties is conducive to the enhancement of emulsion stability.