Rosa roxburghii fruit residue polysaccharide extracted by using ultrasonic wave

Abstract

The invention relates to a rosa roxburghii fruit residue polysaccharide extracted by using ultrasonic wave. The preparation method comprises the following steps: (1) raw material treatment: drying rosa roxburghii fruit residues obtained after juicing of rosa roxburghii to a constant weight, crushing the dried rosa roxburghii fruit residues into rosa roxburghii fruit residue powder, and carrying out low-temperature sealing preservation; (2) extraction: weighing the rosa roxburghii fruit residue powder, adding distilled water for soaking, extracting rosa roxburghii fruit residue polysaccharide with the supplement of an ultrasonic method, and carrying out filtration to obtain an extract solution; (3) lipid removal: concentrating the extract solution, adding anhydrous petroleum ether to the polysaccharide solution, carrying out stirring and vibrating to obtain an emulsified solution, carrying out standing until the solution is layered to an upper layer and a lower layer, and removing the petroleum ether layer; (4) protein removal: adding a Sevag reagent, fully carrying out dissolving, then carrying out centrifuging after vibration, removing denatured protein, and tanking the supernatant liquid; (5) alcohol precipitation: adding absolute ethyl alcohol into the filtrate, carrying out full stirring and standing, and collecting the precipitation; and (6) drying treatment: placing the precipitation in a culture dish containing dry filter paper, and carrying out drying to obtain the rosa roxburghii fruit residue polysaccharide. The rosa roxburghii fruit residue polysaccharide has theadvantages of short extraction time and high activity, and the comprehensive use of fruit and vegetable resources is improved.

Description

technical field [0001] The invention belongs to the field of food and beverage processing, and in particular relates to a polysaccharide extracted from roxburghii pomace, a by-product of fruits and vegetables, by ultrasonic waves. Background technique [0002] Rosa roxburghii belongs to the genus Rosa, and is mainly distributed in the southwest region, among which the output of roxburghii in Guizhou is particularly prominent. Rosa roxburghii fresh fruit is rich in vitamins, polysaccharides, organic acids, phenols, amino acids and trace elements and other nutrients. In recent years, prickly pear processed products have gradually entered the market, such as prickly pear juice drinks, concentrated juice, prickly pear cakes, etc. It is not difficult to find that most of the juice is used. Most of these pomace are used as animal feed, fertilizer or directly Discarded as garbage, improper treatment will not only cause waste of resources, but also easily cause environmental pollut...

AI Technical Summary

Problems solved by technology

In recent years, prickly pear processed products have gradually entered the market, such as prickly pear juice drinks, concentrated juice, prickly pear cakes, etc. It is not difficult to find that most of the juice is used, and most of these pomace are used as animal feed, fertilizer or directly Discarded as garbage, improper treatment will not only cause waste of resources, but also easily cause environmental pollution

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