Method for cultivating spirulina

Abstract

The invention discloses a method for cultivating spirulina and belongs to the technical field of spirulina cultivation. According to the technical points of the method, the method comprises the following steps: (1) adding a culture solution into a cultivating pond, putting spirulina species and culturing; (2) adding ammonium hydrogen carbonate of which the addition is 0.06-0.1kg in the culture solution per ton, into the cultivating pond every day, wherein during adding, firstly mixing ammonium hydrogen carbonate and water are mixed and diluted and then the obtained mixture is dropwise added into the culture solution and uniformly stirred at the same time, the weight ratio of ammonium hydrogen carbonate to water is 1: (30-40) during the dilution; and (3) on the first day and the third day, adding glucose into the culture pond and uniformly stirring, wherein the addition of glucose is 0.2-0.3kg in the culture solution per ton. The invention aims at providing a method for cultivating spirulina which can maintain the pH value of the cultivating pond, is conductive to the growth of the spirulina, is capable of reducing cost and the content of heavy metals and improving the yield. The method is used for cultivating the spirulina.

Description

technical field [0001] The present invention relates to a kind of culture method, more specifically, relate to a kind of method of culture spirulina especially. Background technique [0002] In the breeding process of spirulina, photosynthesis is required, and carbon is an essential element for photosynthesis of spirulina. In the usual aquaculture water, the carbon content is extremely low. When the carbon content is lower than a certain level, the spirulina The photosynthesis of algae will be reduced, and the growth of spirulina will be slow, or even stop growing. Therefore, it can be said that the carbon source is the limiting factor of photosynthesis of spirulina. In order to ensure that the photosynthesis of Spirulina is sufficient during the growth process, it is necessary to add a carbon source when cultivating Spirulina, and the carbon element in carbon dioxide is the form that Spirulina can use. Adding carbon dioxide to provide Spirulina carbon in the current cultiva...

AI Technical Summary

Problems solved by technology

[0004] In addition to nitrogen, phosphorus, and potassium, the growth of Spirulina also requires a large amount of CO 2 , and need to grow in an alkaline environment with a pH value less than 11, therefore, it is necessary to add a large amount of baking soda (NaHCO 3 ), due to the long-term addition of baking soda, the pH value in the culture pond will increase, which will affect the growth of Spirulina, and then affect the output of Spirulina. If it is directly neutralized with acid, it will kill Spirulina.