Abstract This work showed that a wild-type Pseudomonas aeruginosa (PAO1) grown as a nitrate reducing bacterium biofilm on C1018 carbon steel was more corrosive under organic carbon source starvation. P. aeruginosa biofilms were pre-grown for 2 days to achieve maturity before the culture media were changed to fresh culture media with 100% (as in the standard medium), 10%, and 0% organic carbons for subsequent 7-day incubation. Biofilms with 100%, 10%, and 0% organic carbons caused maximum pit depths of 5.4 μm, 10.6 μm, and 17.0 μm, respectively. Weight loss, linear polarization resistance and electrochemical impedance spectroscopy data corroborated the pitting data.

中文翻译：

---

有机碳饥饿下硝酸盐还原铜绿假单胞菌生物膜对C1018碳钢的微生物腐蚀影响

摘要 这项工作表明，在 C1018 碳钢上作为硝酸盐还原菌生物膜生长的野生型铜绿假单胞菌 (PAO1) 在有机碳源饥饿下更具腐蚀性。铜绿假单胞菌生物膜预生长 2 天以达到成熟，然后将培养基更换为含有 100%（如标准培养基中）、10% 和 0% 有机碳的新鲜培养基，用于随后的 7 天孵育。具有 100%、10% 和 0% 有机碳的生物膜分别导致最大凹坑深度为 5.4 μm、10.6 μm 和 17.0 μm。重量损失、线性极化电阻和电化学阻抗谱数据证实了点蚀数据。