High chlorophyll content Characteristic chlorella being attached variant

摘要

PURPOSE:To provide a chlorella variant with a new characteristic obtained, namely, high chlorophyll content, and easy in the culture, and to provide a method for producing the chlorella variant, capable of eliminating the complexity of the maintenance on the industrial culture of the chlorella, and enhancing the industrial producibility of the chlorella. CONSTITUTION:This method for producing a highly chlorophyll-containing chlorella variant comprises irradiating a parent strain comprising a chlorella alga multiplying on a heterotrophical culture using an organic compound as a carbon source with ultraviolet rays, subjecting the irradiated chlorella alga to the heterotrophical nutritive culture, selectively separating a strain having a more green color than that of the parent strain, repeating the ultraviolet rays-irradiation treatment and the selective separation treatment once or more, and subsequently selectively separating the variant higher in the producibility of the chlorophyll than that of the parent strain.