Successful removal of  p ‐quinone with chitosan in an aqueous phase in relation to degree of deacetylation | Zendy

Takahashi Tomoki | Zendy; Imai Masanao | Zendy; Suzuki Isao | Zendy

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Successful removal of p ‐quinone with chitosan in an aqueous phase in relation to degree of deacetylation

Author(s) -

Takahashi Tomoki,

Imai Masanao,

Suzuki Isao

Publication year - 2004

Publication title -

biofactors

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.204

H-Index - 94

eISSN - 1872-8081

pISSN - 0951-6433

DOI - 10.1002/biof.552210166

Subject(s) - chitosan , quinone , aqueous solution , phenol , chemistry , reaction rate constant , phase (matter) , degree (music) , activation energy , aqueous two phase system , acetylation , nuclear chemistry , kinetics , organic chemistry , biochemistry , physics , quantum mechanics , acoustics , gene

Phenol oxidant is successfully removed by using chitosan particles in the aqueous phase. Removal of p ‐quinone by chitosan from crab shells was investigated kinetically from molecular weight (MW) of chitosan, deacetylation degree (DD) and reaction temperature. The rate constant assuming first‐ordered reaction on removal of p ‐quinone in aqueous phase primarily depended on the MW of chitosan, not on the DD. Quantities of chitosan exceeding 5 × 10 5 MW are able to obtain a sufficiently high rate constant (10 −3 s −1 ). At higher temperatures, higher rate constants were obtained in the entire experimental MW and DD. The activation energy obtained was 43.8 kJ·mol −1 .

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