Importance

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Abstract

The invention relates to a method of cultivating spirulina (Arthrospira platensis) in a temperate or northern climate, comprising a period of reproduction of the spirulina strain and a period of dormancy of the spirulina strain when the night temperature of the cultivation tank falls below the limit of 17° C., preferably below the limit of 18° C. or 19° C. or even 20° C., in which, in order to put said spirulina strain into dormancy, a sample volume of the reproduction medium of said strain is taken and placed in conditions of reduced luminosity compared to a sunlight of normal intensity generally borne by said strain during the reproduction period during periods of light alternating with periods of darkness, the said sampling volume is maintained at a temperature of between 5 and 20° C., preferably between 10 and 18° C., under reduced agitation compared with agitation during the reproduction period, at a pH of at least 9, preferably at least 9.5 or at least 10 feeding the sample volume every 4 to 7 days with 5-15%, preferably 10%, of the sample volume of a composition comprising about 1 g/L sea salt, 6 g/L sodium bicarbonate, 2.5 g/L potassium nitrate, 1 g/L potassium sulfate and/or magnesium sulfate, and about 3 g/L sodium and/or calcium carbonate.

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First Claim