The rapid growth of biodiesel production generates large amounts of crude glycerol, a low-value byproduct with environmental and economic challenges. Here, we present an engineered yeast coculture system combining Saccharomyces cerevisiae and Yarrowia lipolytica to convert crude glycerol into isopropanol, a liquid organic hydrogen carrier. The system integrates metabolic engineering, cell surface display pairing, immobilization, and continuous cultivation in fibrous bed bioreactors. In S. cerevisiae, glycerol use was improved by transporter optimization, pathway redirection, and flux shift from ethanol to isopropanol. In Y. lipolytica, ethanol from S. cerevisiae was redirected to isopropanol by acetyl-CoA reinforcement, malonyl-CoA diversion, and NADPH availability. Optimized pairing and inoculation ratios enhanced stability and yield. The consortia achieved complete glycerol utilization and three reuse cycles over 180 h. With pure glycerol, 28.34 g/l isopropanol was produced, while crude glycerol reached 86.06% of this yield. This strategy offers a scalable, modular route to convert biodiesel byproducts into bioenergy carriers.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.
| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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