Supercritical preparation method of synanthrin

Abstract

A supercritical preparation method of synanthrin includes: 1) cleaning and peeling: peeling roots of jerusalem artichoke completely with a knife; 2) cutting into slices or shreds: cutting the peeled jerusalem artichoke into slices, or shreds or cubes with a vegetable slicer, primarily drying till water content is below 15%, wherein the slices, or the shreds or the cubes are smaller than 4 millimeters in thickness or diameter; 3) sterilizing and cleaning secondarily and protecting color: preparing a solution with 0.5% of edible salt, adding chlorine dioxide till concentration reaches to 150-250PPM (parts per million), and immersing the slices, or the shreds or the cubes in the solution for several minutes; 4) drying: drying with a drying plant so as to guarantee product hygiene, watchfullymaintaining a drying temperature within a range of 45 DEG C to 50 DEG C, and drying till the water content is finally below 5%, wherein the drying time is determined according to the sizes of the slices, or the shreds or the cubes; 5) smashing: utilizing a hammer mill to smash the dried slices, or the dried shreds or the dried cubes into 60-150 meshes, and utilizing a jet mill to further smash the smashed slices, or the smashed shreds or the smashed cubes into 150-400 meshes; 6) dissolving in absolute ethyl alcohol after drying and smashing, filtering dissolved matters, and subjecting dissolved out liquid to carbon dioxide supercritical extraction to obtain nanometer synanthrin and residues.

Description

technical field [0001] The invention belongs to the field of food bioprocessing, and in particular relates to a supercritical preparation method of inulin. Background technique [0002] Jerusalem artichoke, also known as Jerusalem artichoke, is a perennial herbaceous plant of the family Asteraceae and the genus Sunflower. Jerusalem artichoke is crushed into inulin, and inulin is further extracted into inulin, which accounts for 70%-80% of the dry weight of inulin. It is a mixture of natural fructans with a degree of polymerization from 2 to 60, and is an ideal functional food ingredient. , At the same time, it is also a good raw material for the production of fructo-oligosaccharides, polyfructose, high-fructose syrup, crystalline fructose and other products. Inulin can be utilized by beneficial bacteria in the human intestinal tract to improve the distribution of human flora and promote health. It is an important prebiotic. At the same time, inulin has good solubility in wa...

AI Technical Summary

Problems solved by technology

[0004] At present, the preparation method of Jerusalem artichoke powder or similar adopts high-temperature pulping and sterilization (preparation of sweet potato powder, sweet potato is made into sweet potato dregs, then soaked in water, and then a filter screen is used to filter out the dregs, and the remaining aqueous solution is dried, which consumes less energy. Higher, just can make blocky sweet potato block, then crushing just can become sweet potato powder), the method for low-temperature aseptic preparation of powder has not been reported yet, the applicant obtains authorization CN 105455135 a kind of alcohol-free southern The preparation method of Jerusalem artichoke No. 9 fruit and vegetable compound enzyme, the preparation of undisclosed inulin and inulin