Huaiyu Duan , Xingqing Zhao , Chao Xu , Du Zhang , Wei Gu , Rucheng Wang , Xiancai Lu
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引用次数: 0
Abstract
The aim of this study was to explore the improvement of lithium leaching from lepidolite by microbial co-culture, focusing on the synergistic effect of different structural fungi in improving the leaching performance of biological systems. The results showed that in the single leaching experiment, the multicellular fungi and the unicellular yeast showed weak effects. Multicellular fungus is limited by insufficient EPS secretion, while unicellular yeast is non-mycelial organisms with weak acid production capacity and limited effect on minerals. However, in the combined leaching experiment, the interspecific collaboration promoted the synthetic and metabolic activity of the two strains, resulting in changes in the type and content of organic acids, polysaccharides, proteins and humus. The content of citric acid reached the highest value of 16.98 g·L−1 at about 22 d, and the EPS secreted by unicellular yeast promoted the mycelium adhesion and mineral wrapping of multicellular fungi. The combined action of the two enhanced the effects of acidification, complexation and mycelium destruction, and improved the leaching effect. This study revealed the synergistic metabolic mechanism of lepidolite leaching by fungi with different structures, verified the effectiveness of microbial co-culture to improve the leaching rate, and provided a basis for industrial application. In addition, the use of co-culture technology has a positive impact on commercial production and environmental protection.
期刊介绍：
The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology.
The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields:
Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics
Biosensors and Biodevices including biofabrication and novel fuel cell development
Bioseparations including scale-up and protein refolding/renaturation
Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells
Bioreactor Systems including characterization, optimization and scale-up
Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization
Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals
Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release
Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites
Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation
Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis
Protein Engineering including enzyme engineering and directed evolution.
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