| abstract |
The invention discloses a method for preparing xylo-oligosaccharides from corncob flour. First, acid and water are added to stir and mix to form a suspension, and the pH value is adjusted to 4.5-5.5. , the pressure is quickly released through the vapor-liquid separator, the secondary steam is recovered for the heating of the subsequent materials, the liquid enters the saccharification tank, and the xylanase and saccharification enzymes are added after cooling, and a multi-stage membrane system is added in the production process. , the conductivity of the feed liquid after saccharification is low <5000μs/cm, the purity of xylo-oligosaccharide is 70-80%, the product quality is improved, the amount of sewage is greatly reduced, the waste heat of vapor-liquid separation is easy to recover, and the energy consumption is reduced. |