Aldose

About: Aldose is a research topic. Over the lifetime, 1270 publications have been published within this topic receiving 27197 citations. The topic is also known as: aldoses.

Catalytic conversion method of aldose into ketose

Abstract: The invention provides a method for simultaneous isomerism of aldose into corresponding ketose and epimer aldose. The method uses the aldose as a substrate, and selects oxidation modified carbon nanotube supported with iron, aluminum, calcium, magnesium, molybdenum, chromium, and manganese elements of carbon nanotubes, or graphene as a catalyst. When the catalyst is mixed with the substrate aldose to not only catalyze aldehyde ketone isomerism to obtain corresponding ketose but also catalyze isomerism of C2 to obtain a corresponding C2 isomerism aldose catalyst, so as to realize simultaneous isomerism by one catalyst to obtain two rare functional sugars. The method has the advantages of high isomerism efficiency, simple operation conditions, reutilization of catalyst, small energy consumption, green, low cost, and potential in industrial mass production.

Structure Determination of N-Terminal-blocked Peptide from Hog Kidney Aldose 1-Epimerase by Tandem Mass Spectrometry

Abstract: The blocked-N-terminal structure of hog kidney aldose 1- epimerase (mutarotase, EC 5.1.3.3) was determined to be Ac-Val-Ser-Val-Thr-Arg-Ser-Val-Phe-Gly-Asp··· by a coupling of conventional methods (enzymatic digestion, amino acid analysis, and Edman sequencing) and tandem mass spectrometry. The side-chain fragmentations observed in the high-energy product ion spectra gave unambiguous sequence information about the arginine-containing N-terminal structure.

Method for isomerizing aldose structure-having compound into ketose structure-having compound, isomerization and accelerating agent thereof

Abstract: PURPOSE:To isomerize an aldose structure-having compound into a ketose structure-having compound in the presence of an organic germanium compound having a specific partial structure without requiring a special installation and a troublesome operation by eliminating the technical difficulties of the prior art. CONSTITUTION:The isomerization method comprises isomerizing (B) the aldose structure-having compound into (C) the ketose structure-having compound with (A) an organic germanium compound having a partial structure of formula I, preferably in the presence of the component A. The component A and the component B are preferably a compound of formula II or III [R1-R3, R4-R6 are H, lover alkyl, (substituted)phenyl. (protected)amino; X1, X2 are OH, O-lower alkyl, amino, OY1, OY2, (Y1, Y2 are metal, compound having a basic group); n is >=1] and glucose, respectively, and the isomerization is preferably the isomerization of the glucose into fructose.