A method for increasing the yield of Spirulina biomass and polysaccharides simultaneously

A technology of spirulina and biomass, applied in the field of spirulina to accumulate biomass and polysaccharides, can solve the problems of affecting cell growth and photosynthetic carbon fixation efficiency, the yield of polysaccharides is not significantly improved, and the production of spirulina polysaccharides is affected. Good sustainability, promotion of industrial production, and low production cost
CN105647825BInactive Publication Date: 2019-05-21DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2019-05-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the cultivation and accumulation of biomass and polysaccharides of spirulina, in particular to the cultivation of spirulina by controlling the addition of nutrient salts so that the biomass and polysaccharides can be accumulated simultaneously. The spirulina cells cultivated to the exponential growth phase are transferred to the nutrient-limited medium, with natural light or artificial light, and the algae cells are harvested after being cultivated to the stable phase. The yield is 0.8-20 times higher than that under the condition of rich nutrition, and the polysaccharide content reaches 45%-80% of the dry weight of algae, which is 2-6 times higher than that under the condition of rich nutrition. The invention solves the contradiction that spirulina biomass and polysaccharides cannot be accumulated at the same time, realizes the rapid and efficient production of spirulina polysaccharides, has the advantages of less nutrient salt consumption, low production cost, high polysaccharide content, etc., and is conducive to simplifying downstream processing operations and promoting spirulina Industrial production of algal polysaccharides.
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Description

technical field

[0001] The invention relates to accumulating biomass and polysaccharides by cultivating spirulina, in particular to cultivating spirulina by controlling the addition of nutrient salts and adopting appropriate inoculation density, light, temperature and pH value to simultaneously accumulate biomass and polysaccharides. It can be used in the cultivation of spirulina and the production of polysaccharides, as well as related fields such as food, medicine, and energy using spirulina polysaccharides as raw materials. Background technique

[0002] Spirulina is a kind of multicellular filamentous cyanobacteria (Blue Green Algae), also known as cyanobacteria (Cyanobacteria), belongs to Cyanophyta (Cyanophyta), Cyanophyceae (Cyanophyceae), Oscillatoriales (Oscillatoriales), Oscillatoriaceae (Osciallatoriaceae) ), Arthrospira, mainly distributed in freshwater or saline-alkaline lakes in tropical and subtropical regions. Spirulina is rich in protein, unsaturated fatty a...

Claims

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