Decolorizing solution capable of protecting peanut polysaccharide and preparation method

Abstract

The invention provides a decolorizing solution capable of protecting the activity of peanut polysaccharide, and belongs to the technical field of decolorization of the peanut polysaccharide. The decolorizing solution is prepared from raw materials which include activated carbon and peanut polysaccharide protective cream, wherein the peanut polysaccharide protective cream is prepared from peanut shell powder, solid ammonium sulfate powder, cholesterol and chitosan. A preparation method of the decolorizing solution includes the steps of: smashing the activated carbon and peanut shell powder, performing centrifugation, performing fractional precipitation by using the ammonium sulfate, adding the cholesterol and chitosan to prepare the peanut polysaccharide protective cream, adding a phosphatebuffer solution with a pH value of 7.2+ / -0.2 into the peanut polysaccharide protective cream, and then adding the activated carbon powder to obtain the decolorizing solution capable of protecting thepeanut polysaccharide. The prepared decolorizing solution capable of protecting the peanut polysaccharide has low cost, a simple preparation method, a simpler application method and a high application value.

Description

technical field [0001] The invention belongs to the technical field of decolorization of peanut polysaccharides, and in particular relates to a decolorization solution for protecting peanut polysaccharides and a preparation method thereof. Background technique [0002] Peanut (Arachis hypogaea) is also known as groundnut and longevity fruit. Meal is the by-product of peanut kernel oil extraction. Among them, peanut is one of the most important oil crops in the world, and its planting area is second only to rapeseed. [0003] Peanut meal is a product obtained by extracting oil from peanut kernels. Usually, peanut meal is divided into primary meal and secondary meal. The primary meal refers to the peanut dregs left after the first pressing, and the second meal refers to the peanut dregs that have been pressed twice. Usually, the yield of peanut meal can reach more than 44%, that is to say, the oil yield of peanut can reach up to 55%, so the yield of peanut meal is relatively ...

AI Technical Summary

Problems solved by technology

The adsorption decolorizing agent will adsorb a large amount of peanut polysaccharides, causing a great loss of peanut polysaccharides

[0005] However, generally speaking, the peanut meal used to extract peanut polysaccharides is high-temperature pressed peanut meal, which has a very dark color and contains a large amount of pigments, making the color of peanut polysaccharides darker, which not only affects the application of peanut polysaccharides, but also It has a great influence on the determination of the characteristics of peanut polysaccharides by spectrophotometry

After the use of traditional decolorizers, most of them will destroy peanut polysaccharides, which will not only reduce the content of peanut polysaccharides, but also greatly destroy the antioxidant properties of peanut polysaccharides. Therefore, a dark color that can remove peanut meal is needed. A decolorizing agent that does not affect the content and activity of peanut polysaccharides

Images