In this study, a four-microorganism three-step fermentation process was established for producing medium-chain-length polyhydroxyalkanoate (mcl-PHA) from starch, which was used as the sole carbon source. The four microorganisms used for this process were Aspergillus niger, Saccharomyces cerevisiae L2612, Acetobacter orientalis, and Pseudomonas putida KT2440-acs. The initial carbon source starch concentration was set to 30 g/L, the maximum glucose concentration reached 17.66 g/L at 48 h after starch hydrolysis, and then, 2.36 g/L of acetic acid was obtained at 96 h. The final output of mcl-PHA was 0.5 g/L at 144 h, overall productivity for mcl-PHA was 3.47 mg/(L·h) and the total starch to mcl-PHA yield for the process was 16.67 mg/g. Although the overall yield and conversion rate of this process were not high, this is the first attempt to produce mcl-PHA using starch as a substrate, and it provides a feasible strategy for producing PHA from kitchen waste. The production process of mcl-PHA with a clear flora structure and short fermentation cycle was realized.
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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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| 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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