isomerization of glucose under conditions of bed expanse

摘要

Expanded bed isomerization of glucose syrup to a glucose-fructose mixture having a fructose proportion exceeding about 40% of the glucose-fructose content by passing 30-55% w/w of glucose syrup through a cell-mass glucose isomerase preparation in the form of a bed of uniform particles of controlled size in the range of 150-2000 micrometers at a superficial syrup velocity of 0.5-15 meters an hour. Velocity and particle size are inversely related to create bed expansion within the range of 5-100%.