1-KESTOSE CRYSTAL AND PRODUCTION THEREOF

PURPOSE:To obtain crystal of high-purity 1-kestose free from hygroscopicity by adding methanol to an aqueous solution containing 1-kestose prepared by culturing a fungus belonging to the genus Scopulariopsis as a main component, processing to dryness and further adding methanol. CONSTITUTION:Scopula...

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Hauptverfasser:	TAKEDA HIROYUKI, INOUE ATSUSHI, HIDANO TETSUHIRO, TSUKADA MASAYUKI, YAMAMOTO KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY DERIVATIVES THEREOF ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING NUCLEIC ACIDS NUCLEOSIDES NUCLEOTIDES ORGANIC CHEMISTRY PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROCESSES USING MICROORGANISMS SPIRITS SUGARS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain crystal of high-purity 1-kestose free from hygroscopicity by adding methanol to an aqueous solution containing 1-kestose prepared by culturing a fungus belonging to the genus Scopulariopsis as a main component, processing to dryness and further adding methanol. CONSTITUTION:Scopulariopsis.brevicaulis is cultured by using a medium containing sucrose as a carbon source to give a culture solution, from which a solid content such as cells are removed to give a 1-kestose-containing solution. The solution is treated with calcium oxide at two stages by changing the concentration to give 1-kestose highly containing syrup having a composition of 90-90% 1-kestose, 2-5% nystose, 3-8% mannitol and 2-12% sucrose. The syrup is dissolved in a proper amount of methanol, concentrated under high pressure to dryness, further dissolved in methanol, optionally mixed with 1-kestose crystallite, precipitated crystal is recovered to give granular crystal consisting essentially of 1-kestose having >=95% purity.