Adsorption of Benzoic Acid and Its Derivatives to Swollen Chitosan Beads

Tomoyo Mitani; Tetsuya Yamashita; Chiho Okumura; Hiroshi Ishii

doi:10.1271/bbb.59.927

Bioscience, Biotechnology, and Biochemistry

Online ISSN : 1347-6947
Print ISSN : 0916-8451

Adsorption of Benzoic Acid and Its Derivatives to Swollen Chitosan Beads

Tomoyo Mitani, Tetsuya Yamashita, Chiho Okumura, Hiroshi Ishii

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JOURNAL FREE ACCESS

1995 Volume 59 Issue 5 Pages 927-928

DOI https://doi.org/10.1271/bbb.59.927

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Abstract

The adsorption of benzoic acid and its derivatives to swollen chitosan beads increased with decreasing pK_a value, except for those compounds having a hydroxyl group in the aromatic ring. The hydroxyl group had the ability to stimulate adsorption, this effect being stronger than that of pK_as. The presence of glucose and methanol also stimulated the adsorption of benzoic acid.

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