5results about How to "Well buried" patented technology

This invention provides a maltodextrin with good encapsulation performance and moisture resistance, and its preparation method. This invention belongs to the field of food processing technology. The preparation method of the maltodextrin with good encapsulation performance and moisture resistance provided by this invention includes the following steps: (1) adding 4-α-glycosyltransferase to a waxy cassava starch slurry for a first-stage enzymatic hydrolysis, inactivating the enzyme, and obtaining a waxy cassava starch slurry; (2) after heat preservation treatment of the waxy cassava starch slurry, adding a heat-resistant starch branching enzyme solution for a second-stage enzymatic hydrolysis, inactivating the enzyme, and obtaining a macrocyclic dextrin slurry; (3) centrifuging the macrocyclic dextrin slurry to remove impurities, freeze-drying, and obtaining maltodextrin with good encapsulation performance and moisture resistance. The maltodextrin prepared by the method of this invention has good encapsulation and adsorption performance, extremely high water solubility and slow digestion characteristics, and also has the advantages of low viscosity, high transparency, non-retrogradation, strong freeze-thaw stability, and good moisture resistance.

The utility model belongs to medical apparatus and instruments, concretely relates to a kind of pathological auxiliary material taking tool of endoscopic mucosal resection specimen, including total connecting plate and comb plate;The side of total connecting plate is connected comb plate;Comb plate is composed of several parallel straight boards, the width of each straight board is less than target material taking width;The distance between the upper edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to the distance between the upper / lower edge of the nth straight board to the upper / lower edge of the n+1th straight board, and the distance between the upper / lower edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to target material taking width, wherein, n is natural number greater than 1 and less than total number N.Compared with prior art, the utility model solves the problem that it is difficult to control the cutting size and easy to cause specimen contamination when cutting specimen into mucosal strips in prior art.The tool of the present scheme can effectively assist cutting positioning and control the cutting size.

The invention discloses a lutein-loaded ternary complex, which is a nano-particle obtained by ultrasonic coupling of ovalbumin, fatty acid and lutein under an alkaline condition. The invention also discloses a preparation method of the ternary complex, ultrasonic coupling is carried out under an alkaline pH condition, embedding of xanthophyll is realized, the ternary complex with good solubility and stability is successfully prepared, and under the action of gastrointestinal tract digestive enzyme, the complex can be used for preparing the xanthophyll-containing ternary complex with good solubility and stability. The lutein is released from the compound and forms a mixed micelle with the lipid, so that the micellization effect of the lutein is effectively promoted, the biological accessibility of the lutein is also improved, and the lutein serving as a functional nutrient plays a better role in the fields of foods, medicines and the like.

The utility model provides an embedding box for placing capsule wall-like tissues, and relates to the field of pathological tissue treatment. Comprising a box body and a box cover hinged to the box body, and dewatering holes are formed in the box body and the box cover; at least one baffle is arranged in the box body in a sliding mode, and a fixing piece is arranged on one side of the baffle and used for fixing the baffle to the box body. The capsule wall sample tissue can be integrated and fixed, the direction is positioned, clamping and embedding are convenient, and time and labor are saved.

The invention belongs to the field of preparation of plant-derived functional materials, and particularly relates to puerarin-pueraria starch-Span80 gel beads as well as a preparation method and application of the puerarin-pueraria starch-Span80 gel beads. The method is realized by the following steps: firstly, weighing pueraria starch, and dispersing the pueraria starch in ultrapure water containing sodium alginate to obtain a gelatinized pueraria starch solution; adding a surfactant into the gelatinized pueraria starch solution, stirring, dropwise adding the puerarin-ethanol solution, and continuously stirring after dropwise adding; and sucking the supernate, dripping into a calcium lactate solution, curing into balls, and performing vacuum freeze drying to obtain the product. The puerarin-embedded gel bead prepared by the invention has pores on the surface, and the structure is of a porous three-dimensional network structure, so that the adsorption and embedding of subsequent active substances are facilitated; a texture result shows that in addition to elasticity, the hardness, cohesiveness, gelatinization, chewiness and resilience of the gel beads before freeze-drying are as follows: puerarin-pueraria starch-Span80 gel beads > puerarin-pueraria starch gel beads > pueraria starch gel beads; and the swelling property is good and can reach 6.94 + / -6.34%.