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Aquamarine blue pigment (ABP) from the shells of abalone (Haliotis discus hannai Ino) was extracted using a precipitation adsorption method and further purified via semi-preparative HPLC. The ABP with molecular weight of 582.8 was identified as a polyenic compound by NMR. The colour value of ABP was E1cm1%612nm=534.3. ABP can dissolve in water, ethanol, methanol, acetic acid and DMSO but was scarcely...
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