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This paper is the first to report the preparation, characterization, and potential biological activities of a chemically sulfated polysaccharide isolated from the ink of the squid, Ommastrephes bartrami. The squid ink polysaccharides (SIPs) were firstly sulfated with the pyridine–sulfur-trioxide complex in dimethyl sulfoxide. Structural characterization of sulfated SIP using nuclear magnetic resonance...
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