Measuring yeast biomass is important in the processes of microbial fermentations. It has been demonstrated that synchronous light scattering (SLS) signals could be applied for the quantification of model bioparticles such as Saccharomyces cerevisiae. In this study, an improved synchronous light scattering method was developed for yeast biomass estimation. The settlement of yeast cells during SLS signals measuring process was studied, and hydrolysis anionic polyacrylamide was added into yeast suspensions to increase the stability of the cells in liquid environment. By simultaneously scanning both the excitation and emission monochromators of a common spectrofluorometer with same starting excitation and emission wavelength (namely, ∆λ = 0), the SLS intensity was found to be proportional to the yeast concentration in the range from 0 to 4.9 × 10(6) cell/mL (R (2) = 0.9907), the detection limit is 8.1 × 10(3) cell/mL. The developed method exhibited good stability and sensitivity in the recovery test and growth curve drawing process, demonstrating the potential of the method in practical application of biomass estimation.
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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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