银离子交换沸石的杀菌和氨去除活性。
Bactericidal and ammonia removal activity of silver ion-exchanged zeolite.
机构信息
Department of Chemical and Environmental Engineering, University of California, Riverside, CA, USA.
出版信息
Bioresour Technol. 2012 Aug;117:86-91. doi: 10.1016/j.biortech.2012.04.044. Epub 2012 Apr 21.
The antimicrobial activity of silver-zeolite against Escherichia coli, Vibrio harveyi, Vibrio cholerae and Vibrio parahaemolyticus was examined in liquid medium and agar well diffusion assays. The minimum inhibitory concentration for silver ion-exchanged zeolite against E. coli and V. harveyi was 40 μg/ml, and 50-60 μg/ml for V. cholerae and V. parahaemolyticus. The diameter of the inhibition zones for E. coli, V. harveyi, V. cholerae and V. parahaemolyticus, respectively, increased from 0.5 to 2.3 cm, 0.6 to 2.4 cm, 0.3 to 1.65 cm and 0.3 to 1.7 cm with increasing concentrations of silver ion-exchanged zeolite from 10 to 400 μg. Silver-zeolite removed 20-37% ammonia from aqueous solutions. This study suggests that silver ion-exchanged zeolite could impact disease and environmental management in shrimp aquaculture.
在液体培养基和琼脂孔扩散试验中，检测了银沸石对大肠杆菌、哈维弧菌、霍乱弧菌和副溶血弧菌的抗菌活性。银离子交换沸石对大肠杆菌和哈维弧菌的最小抑菌浓度为 40 μg/ml，对霍乱弧菌和副溶血弧菌的最小抑菌浓度为 50-60 μg/ml。随着银离子交换沸石浓度从 10 增加到 400 μg/ml，大肠杆菌、哈维弧菌、霍乱弧菌和副溶血弧菌的抑菌圈直径分别从 0.5 增加到 2.3 cm、0.6 增加到 2.4 cm、0.3 增加到 1.65 cm 和 0.3 增加到 1.7 cm。银沸石从水溶液中去除了 20-37%的氨。本研究表明，银离子交换沸石可能会影响虾类养殖中的疾病和环境管理。
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