Concept

Ketose

Related publications (5)

Isomerization Mechanisms of Stereolabile tris- and bis-Bidentate Octahedral Cobalt(II) Complexes: X-ray Structure and Variable Temperature and Pressure NMR Kinetic Investigation

André Merbach, Rosario Scopelliti, Lothar Helm, Fabrice Riblet

The isomerization dynamics of five labile octahedral Co(II) compounds have been investigated by variable temperature and pressure 1H and 19F NMR spectroscopy in dichloromethane solution. The X-ray crystal structure of the two tris-chelates, [Co(HFA)2bpic] ...

American Chemical Society2010

Rhamnogalacturonan alpha-D-galactopyranosyluronohydrolase - An enzyme that specifically removes the terminal nonreducing galacturonosyl residue in rhamnogalacturonan regions of pectin

A new enzyme, rhamnogalacturonan (RG) alpha-D-galactopyranosyluronohydrolase (RG-galacturonohydrolase), able to release a galacturonic acid residue from the nonreducing end of RG chains but not from homogalacturonan, was purified from an Aspergillus aculea ...

1998

Characterization of recombinant rhamnogalacturonan alpha-L-rhamnopyranosyl-(1,4)-alpha-D-galactopyranosyluronide lyase from Aspergillus aculeatus - An enzyme that fragments rhamnogalacturonan I regions of pectin

The four major oligomeric reaction products from saponified modified hairy regions (MHR-S) from apple, produced by recombinant rhamnogalacturonan (RC) alpha-L-rhamnopyranosyl-(1,4)-alpha-D-galactopyranosyluronide lyase (rRG-lyase) from Aspergillus aculeatu ...

1998

Determination of 4-Hydroxy-2,5-dimethyl-3(2H)-furanone and 2(or 5)-Ethyl-4-hydroxy-5(or 2)-methyl-3(2H)-furanone in Pentose Sugar-Based Maillard Model Systems by Isotope Dilution Assays

Imre Blank

The formation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) and 2(or 5)-ethyl-4-hydroxy-5(or 2)-methyl-3(2H)-furanone (EHMF) from pentose sugars was studied in Maillard model systems. The amts. generated at 90 DegC for 1 h were detd. by isotope diln. ass ...

1997

RHAMNOGALACTURONAN ALPHA-L-RHAMNOPYRANOHYDROLASE - A NOVEL ENZYME SPECIFIC FOR THE TERMINAL NONREDUCING RHAMNOSYL UNIT IN RHAMNOGALACTURONAN REGIONS OF PECTIN

Two alpha-L-rhamnohydrolases with different substrate specificities were isolated from a commercial preparation produced by Aspergillus aculeatus. The first rhamnohydrolase was active toward p-nitrophenyl-alpha-L-rhamnopyranoside, naringin, and hesperidin ...

1994

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