微生物浸出过程中胞外蛋白的作用及其机理研究进展

The Research Progress of the Functions and Mechanism of Extracellular Proteins in Bioleaching

矿物-微生物-溶液多相界面是硫化矿生物浸出的关键场所,界面微生物胞外多聚物(EPS)关键组分胞外蛋白在生物膜形成、结构稳定和硫化矿溶解等方面起到关键作用。综述了生物浸出过程中EPS关键组分胞外蛋白的研究进展和胞外蛋白现有的研究方法及其对冶金微生物胞外蛋白研究的适用性,展望了浸矿微生物胞外蛋白研究的前景,旨为生物冶金领域研究EPS关键组分胞外蛋白结构及其作用机理提供重要的理论和方法支撑。

Mineral-microbe-solute multi phase interface is the key space for bioleaching of sulfide minerals. Microbial proteins at theinterface as the key components of extracellular polymeric substances（EPS）play a key role in the biofilm formation,structure maintainanceand sulfide mineral dissolution. This article reviews the developments,existing methods and their applicability for studying the extracellularproteins in EPS of metallurgical microorganisms during bioleaching,and prospects a vista of future research on the extracellular proteinproduced by bioleaching microorganisms. These will offer important theoretical basis for studying the structure and functional mechanisms ofextracellular proteins in the bioleaching process.