Renye John A, Chen Chin-Yi, Miller Amanda, Lee Joe, Oest Adam, Lynn Kevin J, Felton Samantha M, Guragain Manita, Tomasula Peggy M, Berger Bryan W, Capobianco Joseph
Dairy and Functional Foods Research Unit, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA.
Characterization and Interventions for Foodborne Pathogens, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038, USA.
Int J Mol Sci. 2025 Jan 5;26(1):399. doi: 10.3390/ijms26010399.
is a Gram-positive bacterium causing listeriosis, a severe infection responsible for significant morbidity and mortality globally. Its persistence on food processing surfaces via biofilm formation presents a major challenge, as conventional sanitizers and antimicrobials exhibit limited efficacy against biofilm-embedded cells. This study investigates a novel approach combining an engineered polysaccharide-degrading enzyme (CAase) with a bacteriocin (thermophilin 110) produced by . Laboratory assays evaluated the effectiveness of this combination in disrupting biofilms and inactivating on various surfaces. The results demonstrated that CAase effectively disrupts biofilm structures, while thermophilin 110 significantly reduces bacterial growth and viability. The preliminary trials indicate a dual-action approach offers a potential alternative to conventional treatments, enhancing food safety by effectively controlling biofilms in food processing environments.
是一种革兰氏阳性细菌,可引起李斯特菌病,这是一种严重感染,在全球范围内导致显著的发病率和死亡率。它通过形成生物膜在食品加工表面持续存在,这是一个重大挑战,因为传统的消毒剂和抗菌剂对嵌入生物膜的细胞效果有限。本研究调查了一种将工程化多糖降解酶(CAase)与由产生的一种细菌素(嗜热菌素110)相结合的新方法。实验室分析评估了这种组合在破坏生物膜以及使各种表面上的失活方面的有效性。结果表明,CAase有效地破坏了生物膜结构,而嗜热菌素110显著降低了细菌的生长和活力。初步试验表明,这种双重作用方法为传统治疗提供了一种潜在的替代方案,通过有效控制食品加工环境中的生物膜来提高食品安全。