ArticleBiotechnology for biofuels2020
Microbial synthesis of poly-γ-glutamic acid (γ-PGA) with fulvic acid powder, the waste from yeast molasses fermentation.
Article in Biotechnology for biofuels, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 20 citations in OpenAlex.
- Genetically engineering central carbon and nitrogen metabolism in Bacillus paralicheniformis for high γ-PGA production via glutamate-independent pathway.World journal of microbiology & biotechnology · 2025Article
- Production and Characterization of Poly-γ-Glutamic Acid byMicroorganisms · 2025Article
- Effective Decolorization of Poly-γ-Glutamic Acid Fermentation Broth by Integrated Activated Carbon Adsorption and Isoelectric Point Precipitation of Glutamic Acid.Molecules (Basel, Switzerland) · 2024Article
- Poly (γ) glutamic acid: a unique microbial biopolymer with diverse commercial applicability.Frontiers in microbiology · 2024Review
- Synthesis of Poly-γ-Glutamic Acid and Its Application in Biomedical Materials.Materials (Basel, Switzerland) · 2023Review
- Genetic and metabolic engineering for poly-γ-glutamic acid production: current progress, challenges, and prospects.World journal of microbiology & biotechnology · 2022Review
- Efficient molasses utilization for low-molecular-weight poly-γ-glutamic acid production using a novel Bacillus subtilis stain.Microbial cell factories · 2022Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMolasses is a wildly used feedstock for fermentation, but it also poses a severe wastewater-disposal problem worldwide. Recently, the wastewater from yeast molasses fermentation is being processed into fulvic acid (FA) powder as a fertilizer for crops, but it consequently induces a problem of soil acidification after being directly applied into soil. In this study, the low-cost FA powder was bioconverted into a value-added product of γ-PGA by a glutamate-independent producer of
resultsFA power could partially substitute the high-cost substrates such as sodium glutamate and citrate sodium for producing γ-PGA. With FA powder in the fermentation medium, the amount of sodium glutamate and citrate sodium used for producing γ-PGA were both decreased around one-third. Moreover, FA powder could completely substitute Mg
conclusionsTo our knowledge, this is the first report to use the industry waste, FA powder, as a sustainable substrate for microbial synthesis of γ-PGA. This bioprocess can not only develop a new way to use FA powder as a cheap feedstock for producing γ-PGA, but also help to reduce pollution from the wastewater of yeast molasses fermentation.
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