Preparation method and application of functional oligosaccharide glycoside ester
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A functional and glycoside ester technology is applied in the field of preparation of functional oligosaccharide glycoside esters, which can solve the problems of potential threats to animal health and increase of feed costs.
Active Publication Date: 2021-07-06
固安君德同创生物工程有限公司
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The addition of high doses of organic acids not only increases th
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Embodiment 1
[0036] Embodiment 1 A kind of preparation method of xylooligosaccharide citrate
[0037] This embodiment is carried out according to the following sequence of steps:
[0038] 1. Put M 1 = 30kg functional oligosaccharide dissolved in V 1 = 200L deionized water, then transferred to volume V 2 = 300L jacketed cooling reactor, with overhead stirring and continuous pH monitoring, cooled to T 1 =30°C, the reaction solution A was obtained;
[0039] In this step, the functional oligosaccharides are xylooligosaccharides;
[0040] 2. Add lye to the reaction solution A to adjust the pH 1 =8.0, then when the temperature is lower than 20°C, add an organic acid solution to obtain a reaction solution B;
[0041] The addition speed of the organic acid solution should keep the pH of the reaction solution A at 7.52 <8.5, temperature T<20℃;
[0042] In this step, the organic acid uses V 3 = 50L citric acid solution with a solubility of 60%, the lye uses V 4 =30L, ρ=25%w / v NaOH solution;...
Embodiment 2-7
[0052] Embodiment 2-7 A kind of preparation method of functional oligosaccharide glycoside ester
[0053]The preparation process of Examples 2-7 is roughly the same as that of Example 1, except that there are differences in specific raw material types and process parameters. The raw materials and process parameters of Examples 2-7 are shown in Table 1 below.
[0054] The raw material of table 1 embodiment 2-11 and process parameter
[0055]
[0056]
Embodiment 9
[0057] Example 9 Application of a functional oligosaccharide glycoside
[0058] This example provides an application of the functional oligosaccharide glycoside esters prepared in Examples 1-8, which are respectively added to animal feed to improve the intestinal health of animals.
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Abstract
The invention discloses a preparation method of functional oligosaccharide glycoside ester. According to the method, functional oligosaccharide and organic acid are subjected to an esterification reaction to generate the functional oligosaccharide glycoside ester. The invention also discloses application of the functional oligosaccharide glycoside ester. According to the functional oligosaccharide glycoside ester prepared by the invention, the organic acid and the functional oligosaccharide can pass through the stomach and the small intestine together to reach the large intestine, and then the intestinal tract releases the oligosaccharide and the organic acid, so that the utilization rate and the use effect of the functional oligosaccharide and the organic acid are improved; and by adding the functional oligosaccharide glycoside ester into an animal daily ration, the feed cost can be reduced, meanwhile, the intestinal health condition of animals is improved, and potential threats to animal health, which is caused by excessive consumption of the organic acid, are reduced. The invention belongs to the technical field of animal feeds, and is used for improving the utilization rate of the functional oligosaccharide and the organic acid in the animal feed.
Description
technical field [0001] The invention belongs to the technical field of animal feed and is used for improving the utilization rate of functional oligosaccharides and organic acids in animal feed, in particular to a preparation method and application of functional oligosaccharide glycoside esters. Background technique [0002] Animal intestines are easily stimulated by adverse external conditions during the entire growth period, especially in the early stage, such as the proliferation of harmful bacteria, causing intestinal damage, and then affecting their growth performance. [0003] Antibiotics can kill harmful intestinal bacteria, effectively improve intestinal health and improve animal growth performance, but at the same time kill beneficial intestinal bacteria, and prolonged use of antibiotics will not only make the bacteria resistant, but also cause severe food safety issues. [0004] Oligosaccharides are low-polymerized sugars formed by 2-10 monosaccharides linked by g...
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