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Title 

Glucosamine-mediated detoxification of p-benzoquinone and its removal by chitosan

Authors 

Sang Ho ParkOh Sung KwonChang Won ChoiChang Jin Kim

Publisher 

Springer Verlag (Germany)

Issue Date 

2000

Citation 

Biotechnology Letters, vol. 22, no. 1, pp. 21-24

Keywords 

chitosandetoxificationp-benzoquinoneremoval

Abstract 

p-Benzoquinone non-enzymatically reacted with D-glucosamine at physiological pH and moderate temperature. The reaction of p benzoquinone with glucosamine was signaled by changes in the UV and visible spectra. The reactivity proceeded fastest at pH values above 7, with a sharp drop from pH 6.5 to 7.0, and the reaction was negligible in acidic conditions. The order of reactivity of amino sugars was D-mannosamine > D-glucosamine > D- galactosamine. From the reaction mixture, four conversion products were isolated and none was toxic to Escherichia coli even at 500-700 μg ml-1, while p-benzoquinone was cytotoxic to E. coli at 20 μg ml-1. Chitosan could react with p-benzoquinone efficiently and remove this toxicant in aqueous solution.

ISSN 

0141-5492

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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