Patent ID: 9163050
Filing Date: 2015-10-20
Classification: B01D,B01J,C07H,C12P,C13K

Abstract:
1. A process for the production of a high purity d-mannose product from fermented palm oil kernel meal using simulated moving bed separation, said process comprising: a. passing a palm kernel meal stream comprising water, d-mannose, d-glucose, other sugars, color agents, salts and biomass at a pH of between about 5 and 7 to a filtration zone comprising a filter media effective to remove at least a portion of the biomass to provide a filtered feedstream comprising water, d-mannose, d-glucose, salts, other sugars, and color agents: b. passing the filtered feedstream to a simulated moving bed (SMB) zone to provide a highly pure mannose extract stream comprising d-mannose, color agents, salts and water and a primary raffinate stream comprising water, d-glucose, salts, and other sugars, and a secondary raffinate stream consisting essentially of water, said SMB zone comprising a plurality of adsorption beds containing a stationary phase agent comprising a strong acid cation exchange resin in which exchange sites are a metal selected from the group consisting of Ca c. passing the highly pure mannose stream to a decolorization zone wherein the highly pure mannose extract stream is contacted with a medium effective to at least partially remove the color agents to provide a decolorized stream comprising d-mannose, salts and water; d. passing the decolorized stream to a first evaporation zone to remove at least a portion of the water and provide a first evaporated stream; e. passing the first evaporated stream to a desalination zone to provide a desalinized stream; f. passing the desalinized stream to a second evaporation zone to provide an evaporated desalinized stream; g. passing the evaporated desalinated extract stream to a precipitation zone or a crystallization zone to provide wet mannose crystals; and, h. passing the wet mannose crystal stream to a vacuum drying zone to provide the high purity d-mannose product.