Process for extracting astaxanthin pigment from blue-green algae and extracted pigment thereof

摘要

The present invention relates to a process for extracting astaxanthin pigment from the blue-green algae comprising the steps of i) cultivating the blue-green algae, ii) treating blue-green algae culture suspension with microwave to destroy the cell walls and microbodies, iii) drying it or extracting astaxanthin pigment using the solvent selected from the group consisting of ethanol, methanol, acetone and mixture of them. Further, the present invention also relates to the astaxanthin extracted by above method.