Cubilose acid extraction method for edible cubilose processing

Abstract

The invention discloses a cubilose acid extraction method for edible cubilose processing, and relates to the technical field of food. The method comprises the following steps: pretreating cubilose, dispersing cubilose powder in deionized water, introducing gas, heating, adding a methanol solution in three times, and finally centrifuging to obtain a methanol solution containing free cubilose acid on the upper layer and methanol cubilose gel containing bound cubilose acid on the lower layer; adding ferric chloride and copper chloride into the lower layer, heating, adding a methanol solution in three times while introducing hydrogen, centrifuging after reaction to obtain a methanol solution containing protein-bound sialic acid sugar alcohol, and mixing the methanol solution with the protein-bound sialic acid sugar alcohol to obtain the composite sialic acid containing the free sialic acid and the protein-bound sialic acid sugar alcohol. According to the preparation method, the extraction rate of the sialic acid is increased, the prepared composite sialic acid containing the sialic acid and the sialic acid sugar alcohol and containing a small amount of iron ions and copper ions is high in nutritional value, and the prepared sialic acid product is more suitable for diabetics to eat.

Description

technical field [0001] The invention relates to the technical field of food, in particular to a bird's nest acid extraction method used for edible bird's nest processing. Background technique [0002] At present, bird’s nest acid in the market can be processed and extracted by using bird’s nest, but in actual use, in the extraction process of bird’s nest acid, hydrolysis, acid hydrolysis or enzymatic hydrolysis is used, which is easy to extract while bird’s nest acid is extracted. It leads to the intrusion of impurities, which is inconvenient for later separation and affects the quality of bird's nest acid. Secondly, the processing speed is also slow. When large-scale processing is carried out, the large-scale processing requirements will result in the extension of the processing cycle and cost. These are problems that actually exist and need to be solved urgently. [0003] There are three main states of sialic acid in organisms: protein-bound state, oligosaccharide-bound s...

AI Technical Summary

Problems solved by technology

[0002] At present, bird’s nest acid in the market can be processed and extracted by using bird’s nest, but in actual use, in the extraction process of bird’s nest acid, hydrolysis, acid hydrolysis or enzymatic hydrolysis is used, which is easy to extract while bird’s nest acid is extracted. It leads to the intrusion of impurities, which is inconvenient for later separation and affects the quality of bird's nest acid. Secondly, the processing speed is also slow. When large-scale processing is carried out, the large-scale processing requirements will result in the extension of the processing cycle and cost. waste, these are real problems that need to be solved urgently

[0003] There are three main states of sialic acid in organisms: protein-bound state, oligosaccharide-bound state and free state, in which protein-bound and oligosaccharide-bound states are the main states, and sialic acid in the oligosaccharide-bound state is difficult to absorb. However, the protein-bound bird's nest acid is difficult to extract, so that the bird's nest acid in the bird's nest is wasted in large quantities

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