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In the present study, the effects of operational parameters on adsorption and desorption capacity of polyhydroxylated 1,4-naphthoquinone (PHNQ) pigments on macroporous resin in static mode were evaluated. On this basis, a suitable operating condition was selected which recovered 83.96 ± 0.71 and 80.58 ± 1.48 % of PHNQ pigments from Glyptocidaris crenularis and Strongylocentrotus intermedius spines,...
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