發(fā)布時間：2018-12-17 12:25

【摘要】：分別用純培養(yǎng)與模擬培養(yǎng)法考察不動桿菌LM1與假單胞菌LY1組成的復合菌對17β-雌二醇(E2)的協同降解特性.結果表明:當細胞數量比為1時,復合菌對E2的降解率分別為菌株LM1和LY1單獨作用的2.2倍和2.6倍,降解過程中菌株LM1和LY1的細胞數量比趨于1;在28℃,150r/min條件下培養(yǎng)7d后,復合菌對初始質量濃度為1,5,10,20mg/L的E2降解率分別為99.6%,97%,93%,85%;當培養(yǎng)基中氯化鈉添加的質量分數為3.5%時,復合菌對E2的降解率顯著下降(p0.05);在25℃時復合菌對雞糞、豬糞及土壤樣品中E2的降解率分別為對照組的2.7,3.0,2.8倍.即由菌株LM1和LY1組成的復合菌可通過協同作用降解E2.
[Abstract]:The synergistic degradation of 17 尾 -estradiol (E _ 2) by acinetobacter LM1 and Pseudomonas LY1 was investigated by pure culture and simulated culture respectively. The results showed that when the cell number ratio was 1, the degradation rate of E2 was 2.2 times and 2.6 times of that of strain LM1 and LY1, respectively, and the ratio of cell number of strain LM1 and LY1 tended to be 1 in the process of degradation. After incubation at 28 鈩，

本文編號：2384195