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.

Conversion of aldose sugars to ketose sugars

Abstract: 1. IN A METHOD FOR THE MANUFACTURE OF KETOSE SUGARS FROM ALDOSE SUGARS COMPRISING PROVIDING A SOLUTION OF ALDOSE SUGAR, ADDING AN ALKALI OR ALKALINE EARTH ALUMINATE CATALYST TO SAID SOLUTION TO PROVIDE A REACTION MIXTURE, MAINTAINING SAID REACTION MIXTURE AT A TEMPERATURE SUFFICIENT TO SUBSTANTIALLY CONVERT THE ALDOSE SUGAR TO KETOSE SUGAR, ADJUSTING THE PH OF SAID REACTION MIXTURE TO WITHIN THE RANGE OF 6 TO 8 SO AS TO PRECIPITATE AND SAID ALUMINATE MOIETY OF SAID ALUMINATE CATALYST AND PROVIDE A REACTION MIXTURE CONTAINING AN ALUMINUM HYDROXIDE PRECIPITATE IN A SUGAR SOLUTION, THE IMPROVEMENT COMPRISING CONTROLLING THE CONCENTRATION OF SAID ALUMINUM HYDROXIDE IN SAID REACTION MIXTURE AT A LEVEL OF LESS THAN ABOUT 8 PERCENT BY WEIGHT, PROVIDING A FLOWING STREAM OF SAID REACTION MIXTURE, MOVING SAID FLOWING STREAM OF SAID REACTION MIXTURE AT A FLOW RATE OF AT LEAST ABOUT 1 FOOT PER SECOND IN A DIRECTION SUBSTANTIALLY PARALLEL TO A MEMBRANE WHILE MAINTAINING A PRESSURE DIFFERENTIAL OF FROM ABOUT 2 P.S.I.G. TO ABOUT 2,000 P.S.I.G. ACROSS SAID MEMBRANE DURING SAID MOVEMENT OF SAID REACTION MIXTURE AND TRANSFERRING SAID SUGAR SOLUTION THROUGH SAID MEMBRANE.

Glucose-silica medium for high-pressure gel filtration chromatography

Abstract: A method for preparing a pressure stable and pH stable medium for use in high pressure gel filtration chromatography (HPGFC). The method comprises treating aminoalkyl-silica with an aldose or ketose, monosaccharide or disaccharide sugar in the presence of sodium cyanoborohydride at a temperature of from about 50° C. to about 70° C. for a period of time of from about 4 hours to about 6 hours, washing the resulting medium, and drying the medium. a pressure stable and pH stable medium for HPGFC is also disclosed.