Bacterial contamination of surfaces is a natural and spontaneous process that often results in the formation of biofilms. The extracellular matrix of biofilm is mostly composed of proteins, polysaccharides, and extracellular DNA and is responsible for the strong persistent ability of biofilm in the food industry. Despite cleaning and disinfection processes, persistent bacteria cause a major problem in food processing environments. Synthetic surfactants, mainly anionic surface-active agent, are commonly used as detergents, foaming agents, wetting agents, emulsifiers, and dispersants. Their tendency to adsorb to surfaces and interfaces and modify their surface tension, is considered among their main properties. They also have the ability to attach to bioactive macromolecules such as proteins, peptides, and DNA causing cell membrane damage. In order to estimate the adhesion kinetic and proliferation of pathogenic bacteria Staphylococcus aureus, the surface of glass was coated with anionic surfactant Sodium Lauryl Sulfate (SLS). Moreover, SLS was added in suspension with the culture medium. The physicochemical properties of the material were calculated using the contact angle measurement method and bacterial hydrophobicity using the microbial adhesion to hydrocarbons (MATH) test. The obtained results showed that the number of adhering cells increased gradually as a function of time. However, changing the surface properties of the glass and S. aureus has affected the rate of adherent cells with time as well as their organization. SLS inhibited the attachment of cells, whether it is added with the microbial suspension or at the surface of the support. Generally, the present article points to a relationship between the microbial adhesion, the surface chemistry of the solid material and the bacteria, and the suspension properties.

中文翻译：

---

月桂基硫酸钠在玻璃上粘附金黄色葡萄球菌的动力学

表面的细菌污染是自然而自然的过程，通常会导致生物膜的形成。生物膜的细胞外基质主要由蛋白质，多糖和细胞外DNA组成，是生物膜在食品工业中强大的持久能力的原因。尽管进行了清洁和消毒过程，但持久性细菌仍在食品加工环境中造成重大问题。合成表面活性剂，主要是阴离子表面活性剂，通常用作去污剂，发泡剂，湿润剂，乳化剂和分散剂。在它们的主要特性中考虑了它们吸附到表面和界面上并改变其表面张力的趋势。它们还具有附着于生物活性大分子（如蛋白质，肽和DNA）的能力，从而引起细胞膜损伤。金黄色葡萄球菌，玻璃表面涂有阴离子表面活性剂十二烷基硫酸钠（SLS）。此外，将SLS与培养基悬浮地添加。使用接触角测量方法计算材料的理化性质，并使用微生物对碳氢化合物的附着力（MATH）测试计算细菌的疏水性。获得的结果表明，粘附细胞的数量随时间逐渐增加。但是，改变玻璃和金黄色葡萄球菌的表面性质随着时间的推移，它影响了贴壁细胞的速率以及它们的组织。无论是与微生物悬浮液一起添加还是在支持物表面添加，SLS都能抑制细胞的附着。通常，本文指出了微生物粘附，固体材料和细菌的表面化学与悬浮特性之间的关系。