Yang Tianyu, Leśnierowski Grzegorz
Department of Food Safety and Quality Management, Faculty of Food Science and Nutrition, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznan, Poland.
Foods. 2021 Jun 8;10(6):1319. doi: 10.3390/foods10061319.
Thermal modification is an effective method of converting lysozyme into a protein with a very strong bactericidal effect and a broad multidirectional application potential. In this research, we used our innovative method, which involves the use of microwave radiation, in the lysozyme modification process. With the optimization of modification conditions as the main purpose of the study, we focused on the assessment of the impact of a strongly acidic modification environment and the duration of modification on the effectiveness of the modification of lysozyme. Moreover, an innovation was introduced and included the use of a commercially produced liquid lysozyme concentrate (LLC) as the starting material instead of the dried form that is commonly used. The obtained results showed that the modified preparations contained an abundant amount of oligomers, and the surface hydrophobicity increased by more than 50% compared to the native form of the enzyme, which means that the modification had a strong influence on the effectiveness of the antibacterial activity. Moreover, these changes made it possible to obtain preparations with complete solubility, which could not be obtained with other thermal methods. Thus, using microwave radiation to modify LLC is a unique and effective modification scheme because it can obtain the highest quality of a large number of attractive products in a simple and fast way with multidirectional application potential, especially in food technology, medicine, pharmacology, and veterinary medicine.
热修饰是一种将溶菌酶转化为具有很强杀菌效果和广泛多向应用潜力的蛋白质的有效方法。在本研究中,我们在溶菌酶修饰过程中采用了我们的创新方法,即利用微波辐射。以优化修饰条件为主要研究目的,我们重点评估了强酸性修饰环境和修饰持续时间对溶菌酶修饰效果的影响。此外,还引入了一项创新,即使用市售的液体溶菌酶浓缩物(LLC)作为起始材料,而不是常用的干燥形式。所得结果表明,修饰后的制剂含有大量的低聚物,与天然酶形式相比,表面疏水性增加了50%以上,这意味着修饰对抗菌活性的效果有很大影响。此外,这些变化使得能够获得具有完全溶解性的制剂,而其他热方法无法获得这种制剂。因此,利用微波辐射修饰LLC是一种独特而有效的修饰方案,因为它能够以简单快速的方式获得大量具有多向应用潜力的高质量诱人产品,特别是在食品技术、医学、药理学和兽医学领域。