This article conducts the research to the fierce appearance blue natural pigment's extraction method and the stability. To the extractant choice, the solvent strength, the extraction temperature and the extraction time carry on the single factor experiment and the orthogonal test, the determination optimum extraction technological conditions for the ethyl alcohol for the optimum extraction resolver, the ethyl alcohol density are 40%, the extraction temperature is 60 ℃, the extraction time is 70min. The fierce appearance blue green pigment's investigation into stability indicated that its thermostable, the light resistance is bad, the different metal ion pair pigment stability influence is remarkable; Its pigment's oxidation resistance reducing ability is bad; Is stabler under the acidic condition, changes color under the alkalinity condition.
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