The invention discloses
sugar-free transparent highland barley
powder, a clear juice beverage and an integrated preparation method thereof, and belongs to the technical field of grain
deep processing. According to the method, a process
route of only liquefying and not saccharifying is adopted, the glucose equivalent value (DE value) of a liquefied product is controlled to be 3-8, and
free sugar is prevented from being generated from the source; the method comprises the following steps: performing sequential enzymolysis on alpha-
amylase, beta-
glucanase,
cellulase and
neutral protease, and combining
centrifugation, plate and frame
filtration and
ultrafiltration refining to obtain an
ultrafiltration clear liquid; the
ultrafiltration clear liquid can be subjected to flexible bifurcation treatment: the
sugar-free transparent highland barley
powder is prepared by
spray drying, or the
sugar-free transparent highland barley clear juice beverage is prepared by blending, homogenizing, sterilizing and filling. The total amount of
monosaccharide and
disaccharide in the product is less than or equal to 0.5 g / 100g, the light
transmittance of a 10%
aqueous solution is more than or equal to 85%, the product is clear and transparent, can be quickly dissolved in cold and hot, is stable for a long time and is not layered, the total yield is more than or equal to 80%, the process is stable, the reproducibility is good, and the industrial production feasibility is realized.