An energy-saving and environment-friendly production process of high light-transmitting resistant dextrin
A technology of resistant dextrin and production process is applied in the field of energy saving and environmental protection production process of high light transmittance resistant dextrin, which can solve the problem of large consumption of water and acid and alkali, low light transmittance of resistant dextrin, etc. To achieve the effect of reducing water consumption and acid-base consumption of regeneration liquid, reducing production cost and improving utilization rate
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Embodiment 1
[0027] (1) Using wheat starch as raw material, hydrolyze starch with hydrochloric acid, amylase and glucoamylase to obtain resistant dextrin feed liquid, and then use a bag filter with a pore size of 10 microns for preliminary filtration to remove impurities. The dietary fiber content of the resistant dextrin feed liquid after removal of impurities is 51%, the light transmittance (30%, 440nm) of the material is 68%, the pH is 3.8, and the electrical conductivity is 1100μs / cm;
[0028] (2) The resistant dextrin feed liquid after preliminary impurity removal is decolorized once through the granular activated carbon column. The carbon column feeds 8.5m³ per hour, and the decolorization time is 3.5h. After the decolorization is completed, it is filtered through a 10 micron bag filter , the filtrate enters the full-bed ion exchange system. After the feed liquid enters the full-bed separation system, it first goes through a separation, feeds at the bottom of the cation resin column, ...
Embodiment 2
[0035](1) Using corn starch as the raw material, hydrolyze the starch with hydrochloric acid, amylase and glucoamylase to obtain a resistant dextrin feed liquid, and then use a bag filter with a pore size of 10 microns for preliminary filtration to remove impurities. The dietary fiber content of the resistant dextrin feed liquid after removal of impurities is 54%, the material transmittance (30%, 440nm) is 65%, pH 3.9, conductivity 1210μs / cm;
[0036] (2) The resistant dextrin feed solution after preliminary impurity removal is decolorized once through the granular activated carbon column, and the flow rate is 7.5m 3 per hour, the decolorization time is 4h, after the decolorization is completed, it is filtered through a 10 micron bag filter, and the filtrate enters the full-bed ion exchange system. Feed at the bottom of the column, discharge at the top, feed at the bottom of the anion resin column, discharge at the top, enter the transfer tank, and then enter the secondary ion...
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