Microalgae culture medium and microalgae culture method
By using a microalgae culture medium composed of phytic acid compounds, amino acids and putrescine, the problem of water eutrophication caused by inorganic nitrogen and phosphorus is solved, the growth of microalgae and the accumulation of fatty acids are promoted, and efficient and sustainable microalgae cultivation is achieved.
CN120624206APending Publication Date: 2025-09-12NINGBO UNIV
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Patent Information
- Application Number
- CN202510681867.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2025-09-12
AI Technical Summary
Technical Problem
Excessive use of inorganic nitrogen and phosphorus in existing microalgae culture media can easily cause eutrophication of water bodies, and unreasonable element ratios can limit the growth of microalgae.
Method used
Phytic acid compounds, amino acids and putrescine are used as nitrogen sources, combined with ferric citrate, sodium metasilicate and manganese sulfate as salt agents to control nitrogen release, promote iron utilization and cell strength, and use vitamin B12 to improve carbon synthesis efficiency.
Benefits of technology
The results achieved increased microalgae cell concentration, rapid total lipid accumulation, and increased unsaturated fatty acid content, reducing the risk of eutrophication of water bodies and making it suitable for large-scale cultivation.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a microalgae culture medium and a microalgae culture method, and belongs to the technical field of algae culture, the microalgae culture medium provided by the invention comprises a nitrogen source and a salt agent, the mass ratio of the nitrogen source to the salt agent is 1: (0.7-1.3), and the nitrogen source comprises a phytic acid compound, amino acid and putrescine. When the microalgae culture medium provided by the invention is used for culturing microalgae, the growth rate, the total lipid accumulation rate and the unsaturated fatty acid content of the microalgae can be effectively improved, and the microalgae culture medium provided by the invention is not easy to cause eutrophication of a water body and is suitable for large-scale culture of the microalgae.
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