Preparation method of carboxymethyl bacterial cellulose

The invention relates to a preparation method of carboxymethyl bacterial cellulose. The method comprises the following steps: removing impurities from biosynthetic bacterial cellulose to obtain pure bacterial cellulose; alkalizing bacterial cellulose under heating or ultrasonic wave in the mixed sys...

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Bibliographische Detailangaben
Hauptverfasser:	YIN XUEQIONG, YU ZHANGJIANG, LIN QIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PROCESSES USING MICROORGANISMS SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention relates to a preparation method of carboxymethyl bacterial cellulose. The method comprises the following steps: removing impurities from biosynthetic bacterial cellulose to obtain pure bacterial cellulose; alkalizing bacterial cellulose under heating or ultrasonic wave in the mixed system of organic solvent and alkaline solution, then using chloroacetic acid as etherifying agent to modify bacterial cellulose, neutralizing after the reaction, further separating and purifying, and drying to obtain carboxymethyl bacterial cellulose. Compared with the common plant cellulose, the bacterial cellulose has higher degree of polymerization and purity and is an more ideal raw material for preparing high viscosity carboxymethyl cellulose. The obtained carboxymethyl bacterial cellulose has high viscosity and low cost and has good application prospects in the fields such as food, cosmetics, medicines and chemical engineering.