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《Journal of Beijing University of Chemical Technology》 2001-01
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The calculation of deacetylating degree of chitosan

WANG Zhi hua HUANG Yu li (College of Materials Science and Engineering, Beijng University Chemical Technology, Beijng 100029, China)  
The formulae of the deacetylating degree of chitosan are given by: y =203 195 x /(16 022 62+0 420 37 x),y =20 202 1 x /(16 022 62+0 041 794 x )(theoretical equations) ; y =0 015 53+ 12 645 34 x - 0 314 47 x 2+0 005 46 x 3, y =0 015 53+1 257 22 x -0 003 11 x 2+5 362 65×10 -6 x 3 (fit equations),where y is degree of deacetylation, and x is mass fraction of amino in the first equation or percent of free amino of chitosan in the second . The coefficient of determination is 1 and standard deviation is 0 006 63. The calculated value of degree of deacetylation reflects the deacetylating degree of chitosan molecular accurately.
【CateGory Index】: O636
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