College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China.
College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China.
Food Chem. 2023 Feb 15;402:134250. doi: 10.1016/j.foodchem.2022.134250. Epub 2022 Sep 14.
Magnetic nanoparticles (MNPs) have a dual role in acting as magnetic and sonosensitizer agents, which can combine the synergistic effects of microwave and ultrasonic waves. To study the effects of MNPs combined ultrasonic-microwave thawing (NUMT) on the water holding capacity (WHC), oxidation of protein and lipid, and protein conformation, jumbo squid mantles were subjected to cold storage thawing (CST), MNPs combined ultrasonic thawing (NUT), MNPs combined microwave thawing (NMT) and NUMT. Results showed that NUMT treatment had a higher WHC, lower oxidation, effectively reduced myofibrillar protein aggregation and degradation, and stabilized the structure of the protein of the jumbo squid. The muscle fiber structure of NUMT treated jumbo squid mantles was dense, orderly with a smooth surface, and the fiber network gaps were small and uniformly distributed. This study shows that NUMT can ameliorate the thawing qualities of jumbo squid, and is an effectively thawing method.
磁性纳米粒子（MNPs）具有作为磁性和超声敏化剂的双重作用，可结合微波和超声波的协同效应。为了研究 MNPs 联合超声-微波解冻（NUMT）对保水性（WHC）、蛋白质和脂质氧化以及蛋白质构象的影响，巨型鱿鱼外套进行了冷藏解冻（CST）、MNPs 联合超声解冻（NUT）、MNPs 联合微波解冻（NMT）和 NUMT。结果表明，NUMT 处理具有更高的 WHC、更低的氧化程度，有效地减少了肌原纤维蛋白的聚集和降解，稳定了巨型鱿鱼的蛋白质结构。NUMT 处理后的巨型鱿鱼外套肌肉纤维结构致密、有序、表面光滑，纤维网络间隙小且均匀分布。本研究表明，NUMT 可以改善巨型鱿鱼的解冻品质，是一种有效的解冻方法。
