Effects of monosaccharides and protein in extracellular polymeric substances of Klebsiella aerogenes on crystalline forms of CaCO_(3) crystals

作     者：Nan HU Ai-shu LI Huang YU Yu-long LIU Hui ZHANG Zhi-hui YANG Guang-yue LI De-xin DING 胡南;李艾书;余黄;刘玉龙;张辉;杨志辉;李广悦;丁德馨

作者机构：Key Discipline Laboratory for National Defence of Biotechnology in Uranium Mining and HydrometallurgyUniversity of South ChinaHengyang 421001China School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2024年第34卷第12期

页      面：4085-4098页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Nos.U20A20267,U1967210,12275123) Hunan Provincial Science Fund for Distinguished Young Scholars,China(No.2022JJ10041) the Program of Science and Technology Department of Hunan Province,China(Nos.2020 TJ-Q03,2022SK2077) 

主　　题：uranium CaCO_(3)crystal microbially induced CaCO_(3)precipitation extracellular polymeric substances Klebsiella aerogenes 

摘      要：A strain of Klebsiella aerogenes(***)capable of decomposing calcium acetate for CaCO_(3) biomineralization was screened,and the optimum conditions for producing the maximum mass of CaCO_(3) crystals induced by Klebsiella aerogenes were found to be 0.25 mol/L calcium acetate,4%inoculum level,and pH *** that,the monosaccharides and proteins contained in the extracellular polymeric substances(EPS)of Klebsiella aerogenes were *** effects of additional identified monosaccharide and proteins on the crystalline form conversion of CaCO_(3) crystals were investigated,and the additional monosaccharides were found to promote the crystalline form conversion of CaCO_(3) crystals from vaterite to ***,adding 1.00 g/L glucuronic acid was observed to enhance the conversion of crystalline phases of CaCO_(3) crystals to calcite completely after 5 ***,additional catalase was observed to contribute to the regular morphology of CaCO_(3) crystals without affecting their crystalline *** results indicate that the additional glucuronic acid influences the crystalline forms of CaCO_(3) crystals significantly.