镍对1388生物膜产生的脲酶活性的影响。

Influence of Ni on urease activity produced by biofilms of 1388.

作者信息

Marinkova Dessislava, Yotova Lyubov, Ringeard Jean-Marie, Griesmar Pascal

机构信息

Department of Biotechnology, University of Chemical Technology and Metallurgy , Sofia , Bulgaria.

Université de Cergy-Pontoise, ENS, UMR CNRS 8029, Systèmes et applications des technologies de l'information et de l'énergie (SATIE) , F-95000 , Cergy-Pontoise , France.

出版信息

Biotechnol Biotechnol Equip. 2014 Mar 4;28(2):266-270. doi: 10.1080/13102818.2014.908507. Epub 2014 Jul 8.

DOI:10.1080/13102818.2014.908507

PMID:26740756

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4684045/

Abstract

New TiO-based hybrid materials composed of an organic polymer, cellulose acetate butyrate and copolymer of acrylonitrile acrylamide (AN + AA) were prepared. The effectiveness of immobilization of microbial strain 1388 on the newly synthesized hybrid membranes was investigated by biochemical methods. The obtained results revealed that the matrix more suitable for biofilm formation was composed of organic polymers without a metal component in the membrane composition. The influence of Ni on urease activity produced by biofilms was investigated. The experimental results demonstrated that 2 mg L concentration of Ni in the nutrient medium is more appropriate for biofilm proliferation.

摘要

制备了由有机聚合物、醋酸丁酸纤维素和丙烯腈-丙烯酰胺共聚物（AN+AA）组成的新型TiO基杂化材料。通过生化方法研究了微生物菌株1388在新合成的杂化膜上的固定效果。所得结果表明，更适合生物膜形成的基质是由膜组成中不含金属成分的有机聚合物构成。研究了镍对生物膜产生的脲酶活性的影响。实验结果表明，营养培养基中2mg/L的镍浓度更适合生物膜增殖。