Method for cultivating spirulina

Abstract

The invention discloses a method for cultivating spirulina, which includes constructing the cultivating environment of the spirulina, liquid preparation, nursing during the cultivating process, collecting and harvesting the spirulina, and preserving, first constructing the cultivating environment of the spirulina, and then preparing the culture solution : The composition and weight ratio of the culture medium are: NaHCO310~15Kg, KH2PO40.1~0.9Kg, trace elements 1~8Kg, 1 ton of pure raw water; culture conditions: keep the water temperature at 25°C~35°C, and keep the humidity at 40° ~60°, 24-hour oxygenation and 12 hours of light per day; Harvesting: Rinse the filtered spirulina and test it with pH test paper. It is qualified when it shows neutrality; Supplementary nutrients: After continuous harvesting, proportional The dosage will flow various nutrients into the culture tank to ensure that the algae get sufficient nutrients. When the pH value of the culture solution rises to 11, NaHCO3 is added to keep the pH value of the culture solution within 8-11. Continuous cultivation and harvesting , to keep the spirulina at a certain density, add NaHCO3 to stabilize the pH value of the culture medium, and promote the rapid growth and reproduction of algae in the culture medium.

Description

technical field [0001] The invention relates to a method for cultivating spirulina, in particular to a method for cultivating spirulina capable of industrialization and large-scale production. Background technique [0002] Spirulina is a light-energy autotrophic organism. At present, spirulina products have been used in the field of human consumption. Spirulina has good anti-virus ability and can effectively reduce blood sugar and cholesterol. It is a high-value medical and health care product. . [0003] The current large-scale cultivation of spirulina basically adopts open-air cultivation, using natural lakes or building large-scale cultivation ponds for cultivation. This cultivation method has the advantages of low cost, but the product quality is difficult to guarantee, the unit output is low, and it is easily affected by the environment. and seasonal effects. [0004] On February 8, 1995, the State Intellectual Property Office of China published an invention patent ti...

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Problems solved by technology

[0003] The current large-scale cultivation of spirulina basically adopts open-air cultivation, using natural lakes or building large-scale cultivation ponds for cultivation. This cultivation method has the advantages of low cost, but the product quality is difficult to guarantee, the unit output is low, and it is easily affected by the environment. and seasonal effects

[0004] On February 8, 1995, the State Intellectual Property Office of China published an invention patent titled "New Method and Device for Spirulina Production". Promote the flow of the culture medium, and then install a filter to raise the liquid level, and at the same time filter the larger spirulina algae. Compared with the original method of cultivating spirulina in a square pond, the product quality and output have been significantly improved, and the cost is low and easy to use. promotion, but the modified plan cannot effectively change the defect that spirulina is easily affected by the environment when culturing spirulina, and open-air cultivation is easily polluted. This method of mixed cultivation in large ponds will affect the output and quality of the overall algal group after local pollution. Spirulina for effective artificial control

[0005] On February 5, 2003, the State Intellectual Property Office of China published an invention patent titled "A Method for Domesticating and Eating Fresh Spirulina". The temperature control device and the container can be cultivated outdoors and indoors. Indoor cultivation needs to increase the light. This scheme is simple in structure and suitable for family cultivation, and can be moderately artificially controlled. However, for large-scale cultivation of spirulina, this scheme is not perfect

[0006] On July 27, 1994, the State Intellectual Property Office of China published an invention patent titled "Closed Culture Method and Device for Spirulina". The aquaculture pipeline composed of multiple U-shaped tubes is connected by gas lift to circulate the culture solution and placed in the greenhouse for cultivation. Light and temperature control are added as needed. This solution better solves the problem that outdoor aquaculture is prone to pollution and seasons. The problem of the impact of environmental changes, and it can be well controlled artificially, and can be produced continuously on a large scale, but the structure of this scheme is relatively complicated, the cost is high, and it cannot solve the problem of the overall impact of algae groups after local pollution

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