Effects of digestive enzymes on the retained arsenic in dried Hijiki, Sargassum fusiforme

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  • Effects of digestive enzymes on the retained arsenic in dried Hijiki, <i>Sargassum fusiforme</i>

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<p>Water-swollen samples of Hijiki, Sargassum fusiforme, were treated with two digestive enzymes, pepsin from porcine stomach mucosa and pancreatin from hog pancreas, at 37°C for 3, 6, 15 and 24 hr. Two fractions of arsenic, one dissolved and the other retained in the Hijiki residues were determined by thermal neutron activation analysis.</p> <p>The concentration of the retained arsenic in the Hijiki residues was 27 μgAs/g dry residue weight after single treatment with pepsin, 25 μgAs/g dry residue weight after single treatment with pancreatin and 24 μgAs/g dry residue weight after successive treatment with pepsin followed by pancreatin.</p>

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