文献类型：期刊文献

英文题名：Study on the bactericidal activity of dodecyl dipropylene triamine and anionic mixed surfactant systems

作者：Lin, Xianjia[1];Liu, Bincheng[1];Luo, Wenyi[1];Lin, Zhen[1];Liang, Zhibin[1];Kang, Xinhuang[1];Deng, Chengwen[1];Wen, Yanmei[1]

机构：[1]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhan Jiang 524088, Peoples R China

年份：2023

卷号：378

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：SCI-EXPANDED(收录号：WOS:000954531600001)、、EI(收录号：20231213748678)、Scopus(收录号：2-s2.0-85150223070)、WOS

基金：This work was supported by the Guangdong Natural Science Foundation (No. 2021A1515010304) , Project of Enhancing School with Innovation of Guangdong Ocean University (No. 230419054) , and Laboratory of Marine Chemistry Resource Utilization and Research (No. Q17092) . In particular, we would like to thank Dr. Zhiguo Zhang for his help in providing language and writing assistance, as well as proofreading the article. We would also like to thank Zhang Dun's group for providing the SRB strains. Without their help, this study would not have been possible. We would like to thank Editage ( www.editage.cn) for English language editing.

语种：英文

外文关键词：Sulfate reducing bacteria; Dodecyl dipropylene triamine; Anti -microbial; Viscosity

外文摘要：In this study, we anticipated that cocamidopropyl betaine (CAPB) and isomeric alcohol ethoxylates (TO) could protect the antibacterial properties of dodecyl dipropylene triamine (BDA) under the influence of anionic surfactants. Different concentrations of anionic surfactants such as sodium lauryl poly-oxyethylene ether sulfate (AES) and sodium dodecyl sulfate (SDS) were added to a mixture of the cationic surfactants BDA and benzalkonium chloride (BZK) with two protective agents: a branched nonionic sur-factant TO and a zwitterionic surfactant CAPB. Optical density (OD) and Cell Counting Kit-8 (CCK-8) methods were used to evaluate the antibacterial activity of these systems against sulfate-reducing bac-teria (SRB) such as Escherichia coli, Staphylococcus aureus, and Desulfovibrio sp. The protective mechanisms of the different protective agents were studied by measuring their respective viscosities. The protective agents (TO and CAPB) had a negative effect on the biocidal performance of the BZK (C-12-C-14) but had an excellent protective effect in the presence of anionic surfactants. In the BDA systems (AES and SDS con-centrations of 100 mM), the BDA-CAPB-AES, BDA-CAPB-SDS, BDA-TO-AES, and BDA-TO-SDS sys-tems eliminated almost all E.coli and S.aureus bacteria within 2 min of exposure, among which the BDA-CAPB-AES and BDA-TO-AES systems showed the strongest bactericidal activity against sulfate reducing bacteria (SRB). Therefore, these multicomponent surfactant antibacterial systems can poten-tially be used to replace traditional cationic surfactant systems in the chemical industry, thereby reducing the microbial corrosion caused by SRB. (c) 2023 Elsevier B.V. All rights reserved.