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Poplar bark extract fodder additive and preparation method thereof

A feed additive and poplar bark technology, applied in the field of poplar bark extract feed additive and its preparation, can solve problems such as not receiving due attention and attention, reduce resource waste and environmental pollution, improve functional components and The effect of application value and convenient collection

Inactive Publication Date: 2016-11-09
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the value and efficacy of extracting water-soluble active substances and nutrients such as phenolic glycosides, phenolic acids and polysaccharides from poplar bark as feed additives have not yet received due attention and attention.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A preparation method of poplar bark extract feed additive, comprising the steps of:

[0029] (1) Using poplar bark as raw material, ethanol solution is used as solvent to carry out the first extraction, filtering to obtain solid residue and filtrate, the filtrate is concentrated under reduced pressure, and ethanol is reclaimed to obtain the ethanol extract of poplar bark;

[0030] (2) The solid residue obtained in step (1) is used as a solvent for the second extraction, filtered, and the solid residue is discarded to obtain the water extract of poplar bark;

[0031] (3) The ethanol extract obtained in step (1) and the water extract obtained in step (2) are combined, concentrated under reduced pressure to obtain a creamy poplar bark extract;

[0032] (4) Mix the paste poplar bark extract obtained in step (3) with a suitable carrier as an adsorbent, dry, pulverize, and sieve to obtain the poplar bark extract feed additive.

[0033] The poplar bark described in the step (...

Embodiment 1

[0041] Example 1: Get 100g of poplar bark powder, place it in a 2000mL round bottom flask, add 1000mL of 80% ethanol solution, reflux extraction in a water bath at 80°C for 3h, filter, add 800mL of pure water to the residue, and place it in a water bath at 95°C Reflux extraction for 3 hours, filter, combine alcohol extract and water extract, concentrate under reduced pressure, and vacuum dry to obtain 15.1 g of poplar bark extract with an extraction yield of 15.1%.

Embodiment 2

[0046] Collect poplar bark raw materials that are clean and free from rot and mildew, remove impurities, dry and pulverize to obtain poplar bark coarse powder with a moisture content of 11.2%. Weigh 200kg poplar bark coarse powder, put it into a multi-functional extraction tank, add 800L 80% ethanol solution, reflux extraction at a temperature of 70°C for 3h, filter, concentrate the filtrate under reduced pressure, recover ethanol, and obtain the alcohol extraction of poplar bark liquid. Add 600L of pure water to the poplar bark residue, reflux extraction at 95° C. for 2 hours, and filter to obtain a water extract of poplar bark. The ethanol extract and the water extract of the poplar bark are combined, concentrated under reduced pressure to obtain a paste-like poplar bark extract. According to the mass ratio of poplar bark extract and carrier of paste, add 20kg 100 mesh rice husk powder in the poplar bark extract that obtains in the ratio of 1:0.5~2 as adsorbent, place feed ...

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Abstract

The invention discloses a poplar bark extract fodder additive and a preparation method thereof. According to the poplar bark extract fodder additive, the first time of extraction is conducted with poplar bark as the raw material and an ethanol solution as the solvent, filtering is conducted, filter liquor is subjected to vacuum concentration, ethyl alcohol is recovered, and poplar bark alcohol extract is obtained; the second time of extraction is conducted on solid residues with water used as the solvent, and filtering is conducted to obtain poplar bark water extract; the poplar bark alcohol extract and the poplar bark water extract are combined and subjected to vacuum concentration to obtain pasty poplar bark extract; and the pasty poplar bark extract and a proper carrier used as an adsorbent are evenly mixed, dried, smashed and screened, so that the poplar bark extract fodder additive is obtained. When being added into basic livestock fodder, the poplar bark extract fodder additive has the effects of improving the animal production performance and enhancing animal organism immunity; and the raw materials are abundant, the price is low, and the poplar bark extract fodder additive is convenient to apply and popularize.

Description

technical field [0001] The invention belongs to the technical field of plant feed additives, in particular to a poplar bark extract feed additive and a preparation method thereof. Background technique [0002] Antibiotics have an obvious growth-promoting effect on animals, and are widely used as feed additives, which greatly increase the number of livestock and poultry and the output of their products, and have made great contributions to the development of animal husbandry. However, antibiotics produce side effects such as bacterial resistance and drug residues, which also bring serious harm to human health. It has become an irreversible trend to reduce and limit the use of antibiotic feed additives. The European Union has banned all antibiotics in feed since 2006, and South Korea has also banned the addition of antibiotics in animal feed in 2011. In 2012, my country began to implement the newly revised "Regulations on the Administration of Feed and Feed Additives", which ...

Claims

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Application Information

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IPC IPC(8): A23K10/30A23K10/37
CPCY02P60/87
Inventor 郑光耀闫林林汪咏梅张亮亮徐曼韦朝宽
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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