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Alginate oligosaccharide product, extracting method thereof and broiler feed product

A technology of fucoidan oligosaccharides and extraction methods, which is applied in the field of animal nutrition and feed science, can solve the problems of low actual utilization rate, large molecular weight, and low water solubility, and achieve simple and easy-to-operate preparation methods, small molecular weight, and water-soluble good sex effect

Pending Publication Date: 2019-03-26
QINGDAO AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since most fucoidan oligosaccharides have the characteristics of large relative molecular weight, high viscosity, and low water solubility, it is difficult to be absorbed by the intestines and stomach of chicks. In turn, it will cause other types of growth problems, so the theoretical value of ordinary fucoidan oligosaccharides in animal feed is very high, but the actual utilization rate is not high, and there is a certain degree of difficulty in quantification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of embodiment 1 fucoidan oligosaccharide product X1

[0023] (1) Hydrolysis: Add water to swell commercially available sodium alginate to a uniform glue solution with a mass fraction of 2%, then hydrolyze in 0.2mol / L hydrochloric acid solution at 70°C for h, Centrifuge for 10 min under the condition of / min, and take the precipitate.

[0024] (2) Classification: the above precipitate was dissolved in 8g / L sodium carbonate solution, and the pH value was adjusted to 2.15 with hydrochloric acid solution, the solution was layered to obtain a yellow clear liquid and precipitate, and the supernatant was taken.

[0025] (3) Alcohol precipitation: add 3 times the volume of 95% ethanol to the above supernatant, centrifuge at 4000r / min for 10min, take the precipitate, and remove residual ethanol and water by suction filtration. The sample was dissolved in 8 g / L sodium carbonate solution, and the pH value was adjusted to 2.15 with hydrochloric acid solution...

Embodiment 2

[0028] The preparation method of embodiment 2 fucoidan oligosaccharide product X2

[0029] (1) Hydrolysis: Add water to swell commercially available sodium alginate to a uniform glue solution with a mass fraction of 8%, then hydrolyze in 0.6mol / L hydrochloric acid solution at 100°C for 10h, Centrifuge for 12 min under the condition of 1 / min, and take the precipitate.

[0030] (2) Classification: the above precipitate was dissolved in 10g / L sodium carbonate solution, and the pH value was adjusted to 2.85 with hydrochloric acid solution, the solution was layered to obtain a yellow clear liquid and precipitate, and the supernatant was taken.

[0031] (3) Alcohol precipitation: add 4 times the volume of 95% ethanol to the above supernatant, centrifuge at 4000r / min for 12min, take the precipitate, and remove residual ethanol and water by suction filtration. The sample was dissolved in 8g / L sodium carbonate solution, and the pH value was adjusted to 2.85 with hydrochloric acid solu...

Embodiment 3

[0034] Example 3 The preparation method of fucoidan oligosaccharide product X3

[0035] (1) Hydrolysis: Add water to swell commercially available sodium alginate to a uniform glue solution with a mass fraction of 15%, then hydrolyze it in 1.2mol / L hydrochloric acid solution at 150°C for 15 hours, Centrifuge for 10 min under the condition of / min, and take the precipitate.

[0036] (2) Classification: the above precipitate was dissolved in 8g / L sodium carbonate solution, and the pH value was adjusted to 2.15 with hydrochloric acid solution, the solution was layered to obtain a yellow clear liquid and precipitate, and the supernatant was taken.

[0037] (3) Alcohol precipitation: add 3 times the volume of 95% ethanol to the above supernatant, centrifuge at 6000r / min for 15min, take the precipitate, and remove residual ethanol and water by suction filtration. The sample was dissolved in 10 g / L sodium carbonate solution, and the pH value was adjusted to 3 with hydrochloric acid s...

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Abstract

The invention relates to an alginate oligosaccharide product, an extracting method thereof and a broiler feed product. The extracting method of the alginate oligosaccharide product comprises the following steps: adding water into sodium alginate, thereby preparing a homogeneous sodium alginate glue solution; mixing sodium alginate glue solution with hydrochloric acid solution, hydrolyzing and generating sediment; centrifugally extracting sediment; pouring sediment into a sodium bicarbonate solution and layering; taking supernate, performing alcohol precipitation and collecting sediment; treating the collected sediment by repeating the layering step and the alcohol precipitation step till removing impurities; drying, thereby acquiring the alginate oligosaccharide product. The broiler feed product contains a certain amount of alginate oligosaccharide provided by the invention. The alginate oligosaccharide product and the broiler feed product provided by the invention can obviously promote oxidation resistance and immunity of broilers, are beneficial to recovery of broiler intestinal injury caused by stress and are capable of promoting disease resistance of broilers, reducing death and culling rate of broilers and increasing economic benefit of cultivation.

Description

technical field [0001] The invention belongs to the field of animal nutrition and feed science and technology, and in particular relates to a brown algae oligosaccharide product, an extraction method thereof and a broiler chicken feed product. Background technique [0002] The microflora of the gastrointestinal tract of broiler chickens is critical for nutrition, health and growth performance during the early growth stages. The lack of a healthy microflora status in the cecum is considered a major factor in the susceptibility of broilers to trigger bacterial infections. The gut microbiota of broilers is influenced by their dietary nutrition, and the chemical composition of intestinal digesta largely determines the composition and community status of gut microbes. Dietary changes will lead to corresponding changes in intestinal flora, and dietary composition, intestinal microorganisms and their interaction can affect the intestinal development, intestinal mucosal structure a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/75A23K10/30A23K10/37A23K10/22A23K20/158A23K20/174A23K20/142A23K20/20A23K20/26A23K20/105
CPCA23K10/22A23K10/30A23K10/37A23K20/105A23K20/142A23K20/158A23K20/174A23K20/26A23K20/30A23K50/75Y02P60/87
Inventor 张相飞刘明
Owner QINGDAO AGRI UNIV
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