The invention discloses a preparation method of an imitated oral solution for
lactulose Dumishan. The preparation method comprises the following steps: step 1, pretreating raw materials; 2, preparing a buffer
system; step 3, dissolving and mixing core components; step 4, adjusting
flavor and optimizing taste; step 5,
osmotic pressure regulation; step 6; step 7, carrying out sterile treatment; step 8, constant-temperature curing and stability regulation and control; and step 9, quality detection and packaging. According to the invention, beta-
cyclodextrin is adopted to carry out clathration treatment on
lactulose, and the composite
wall material can effectively protect the molecular structure of
lactulose, so that the lactulose is prevented from being hydrolyzed and degraded in the preparation and storage processes; meanwhile, a
citric acid-
sodium citrate composite buffer pair and EDTA disodium have a synergistic effect, so that the pH value of the
system is stabilized,
metal ions are chelated, the degradation of lactulose is further inhibited, and the validity period of the preparation is prolonged. The
sweetness is adjusted through the
sucralose and
maltitol compound
sweetening agent, and the sweet greasy feeling of a single
sweetening agent is avoided.