SEPARATION OF DEXTRIN FROM CYCLODEXTRIN

PURPOSE:To efficiently separate dextrin from cyclodextrin by the treatment, using a dynamic membrane under a specific pressure, of a stock solution containing the both. CONSTITUTION:A stock solution containing both dextrin and cyclodextrin is treated, using a dynamic membrane constituted by porous s...

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Bibliographic Details
Main Authors ITOU KAKICHI, TANAKA YONEKICHI, HASHIMOTO HITOSHI, KUWABARA NOBUHIRO, HARA KOUZOU
Format Patent
LanguageEnglish
Published 20.12.1985
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POLYSACCHARIDES
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Summary:PURPOSE:To efficiently separate dextrin from cyclodextrin by the treatment, using a dynamic membrane under a specific pressure, of a stock solution containing the both. CONSTITUTION:A stock solution containing both dextrin and cyclodextrin is treated, using a dynamic membrane constituted by porous substrate on which a self-exclusion film is formed with either dextrin solution or mixed solution containing dextrin and cyclodextrin, under a pressure 0.5-25kg/cm , pref. with a linear velocity of the flow (stock solution) parallel to said membrane falling between 0.5 and 3m/sec, to obtain the objective permeated solution of higher cyclodextrin concentration than that is the stock solution. Said substrate is, e.g., ceramic one with pores of a size 0.1-2mum, another derived from coating alumina on this to provide pores of an average size 0.05mum, or natural or organic synthetic membrane with a pore size 0.01-10mum.
Bibliography:Application Number: JP19840114491