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《CHEMISTRY AND INDUSTRY OF FOREST PRODUCTS》 1997-04
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PREPARATION OF CARBOXYMETHYL MODIFIED HEMICELLULOSE AND ITS APPLICATION POTENTIAL

Quan Jinying Wang Peiqing(Nanjing Forestry University Nanjing 210037)  
Carboxymethyl modified hemicellulose(CMMH) was prepared from modified hemicellulose(MH) isolated from alkaline pulping liquor of wheat straw by carboxymethylation.The average number of carboxymethyl group introduced per xylose unit (degree of substitution,DS) can be controlled by varying the amounts of reactants,chloroacetic acid and sodium hydroxide added.The conditions of reaction were discussed.The effects of CMMH on immune function were examined by pharmacological experiments.Results show that CMMH can augment cellular immunity by enhancing the number and activity of immunocytes.It is considered that CMMH is fairly active for immunoregulation.
【CateGory Index】: TQ352
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