PRODUCTION OF CELLULOSE DERIVATIVE

PROBLEM TO BE SOLVED: To efficiently obtain a cellulose derivative for thickeners, binders, stabilizers, etc., by treating pulp with an enzyme such as the enzyme capable of hydrolyzing β-1,4 glycoside bonds before chemically modifying the pulp, suppressing generation of microgels and improving filte...

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Bibliographische Detailangaben
Hauptverfasser:	KAMAIKE MOTOAKI, NOGUCHI NORITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF CULTURE MEDIA 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 MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PROCESSES USING MICROORGANISMS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP VINEGAR WINE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To efficiently obtain a cellulose derivative for thickeners, binders, stabilizers, etc., by treating pulp with an enzyme such as the enzyme capable of hydrolyzing β-1,4 glycoside bonds before chemically modifying the pulp, suppressing generation of microgels and improving filterability. SOLUTION: This production of a cellulose derivative for thickeners, binders, stabilizers, suspensions, etc., is to prepare a slurry from pulp with an acetic acid buffer having pH6, add an enzyme such as xylanase which is the enzyme capable of hydrolyzing β-1, 4-glycoside bonds and obtained from Bacillus sp. SD 902 (FERM-P-13356), treat the pulp slurry for 3 hours with agitating at 60 deg.C, feltering and dehydrating the pulp through a Buchner funnel and obtain the enzyme-treated pulp, add the enzyme-treated pulp to 88% isopropanol to prepare a slurry, add sodium hydroxide to bring to alkali cellulose, carry out chemical modifications such as methyl etherification, hydroxypropyl etherification, carboxymethyl etherification, etc., by adding chlorinated compounds and obtain the objective compound derivative.