Feed additive enteric coated tannin, preparation method thereof and feed

A feed additive and enteric coating material technology, applied in the field of feed additive enteric coating tannic acid and its preparation, can solve the problems of unstable effect, inability to achieve astringent effect, large amount of use, etc., and achieve astringent antibacterial prevention. The effect of animal diarrhea, the solution of poultry's summer watery stool, and the improvement of commerciality

Inactive Publication Date: 2017-09-05
HUNAN JINGTIAN TECH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Zinc oxide has a good astringent effect and can very stably prevent diarrhea in suckling piglets. Any other method, including the use of the best antibiotics, cannot achieve such a stable effect, and its effective dose is 2000-2500ppm, which is relatively low. If the dose is large, it will pollute the environment more, and if the dose is less than this dose, the astringent effect cannot be achieved
Because the pollution is so serious, many scientists are working hard to explore. In recent years, some people have coated zinc oxide with coating materials such as monoglyceride stearate, and the dosage of zinc has been reduced, but the effect is very unstable; Rice zinc oxide replaces high zinc, but the benefits are very small. Nano-zinc oxide is likely to have a negative nutritional effect on pigs over 20kg; Hydrolyzed tannic acid is 750-1500 g / ton, and the cost of use is far higher than that of high zinc, so it has not been effectively applied in the market

Method used

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  • Feed additive enteric coated tannin, preparation method thereof and feed
  • Feed additive enteric coated tannin, preparation method thereof and feed
  • Feed additive enteric coated tannin, preparation method thereof and feed

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preparation example Construction

[0049] The present invention also provides a method for preparing the above feed additive enteric-coated tannic acid, comprising the following steps:

[0050] The enteric coating material is coated on the surface of the granular core material to obtain the feed additive enteric coating tannic acid, and the core material is selected from tannic acid.

[0051] A granular core material is first provided. The specific method is:

[0052] Dispersing tannic acid and additives in water to obtain a mixed solution;

[0053] The mixed liquid is granulated to obtain a granular core material.

[0054] The present invention has no special limitation on the granulation method of the granular core material, and any granulation method known to those skilled in the art will suffice. Granulation with a granulator or spray drying is preferred.

[0055] After the granular core material is obtained, the surface of the core material is coated with an enteric coating material. specific:

[005...

Embodiment 1

[0070] Take 60kg of tannic acid purchased from Zhangjiajie Aowei Technology Co., Ltd. and mix them evenly with diluents such as 250kg of corn starch, 100kg of maltodextrin, 150kg of silicon dioxide, 50kg of chitosan, and 150kg of water. Spherical granules, dried, select granules containing 12% tannic acid between 80-100 mesh, and spray 5% polyacrylic resin II, III and hydroxypropyl methyl in the fluidized bed of the granulator A mixed solution of cellulose phthalates to obtain enteric-coated tannic acid granule feed additives containing 10% tannic acid.

[0071] The above-mentioned enteric-coated tannic acid granule feed additive was stirred in an aqueous solution of pH 2.5 at 37°C for 60 minutes, and the dissolution rate of tannic acid was 0.32%; stirred in an aqueous solution of pH 7.0 at 37°C for 30 minutes, Nitric acid release rate is 95%. .

Embodiment 2

[0073] Get 100kg of tannic acid and 3kg of chitosan purchased from Zhangjiajie Aowei Technology Co., Ltd. and dissolve them in 500kg of deionized water, fully dissolve, spray dry and granulate with a granulation spray dryer, and select particles between 80-100 mesh Containing 97% tannic acid particles, spray 5% polyacrylic acid resin II, III and hydroxypropyl methylcellulose phthalate mixed ethanol solution in the fluidized bed of the granulator to obtain mono Enteric-coated tannic acid granule feed additive with 87% (or more) nic acid.

[0074] The above enteric-coated tannic acid granular feed additive was stirred in an aqueous solution of pH 2.5 at 37°C for 60 minutes, and the dissolution rate of tannic acid was 0.24%; stirred in an aqueous solution of pH 7.0 at 37°C for 30 minutes, the tannin The acid release rate was 98.5%.

[0075] It shows that enteric coating of tannic acid with enteric coating material can also produce products with high content of tannic acid.

[0...

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Abstract

The invention provides a feed additive enteric coated tannin, comprising a core material and an enteric coating, wherein the surface of the core material is covered with the enteric coating, and the core material is selected from tannin. According to the feed additive enteric coated tannin provided by the invention, tannin particles are coated by an enteric coating material, so that the tannin is hydrolyzed and released to take effects mainly in the colon or a part below the colon when ingested by animals. The addition level of the enteric coated tannin in feed is only 20-100ppm (counted by tannin), and the enteric coated tannin can release tannin in the intestine to play the effects of astringing, resisting bacteria and preventing diarrhea of animals like high zinc when ingested by animals, so the enteric coated tannin has low dosage and lower cost. In addition, the feed additive enteric coated tannin provided by the invention can well improve the fur and commercial quality of baby pigs when added to feed. Also, the feed additive enteric coated tannin can be added to the ration of poultry in summer to solve the problem of diarrhea of poultry in summer.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to a feed additive enteric-coated tannic acid, a preparation method thereof and a feed. Background technique [0002] The global feed industry has an annual output of nearly 1 billion tons so far, of which China has reached 197 million tons in 2014 after 30 years of development. [0003] Pig feed accounts for about 60-70% of the Chinese market, among which, suckling pig feed accounts for more than 20%, that is, 30 million tons of suckling pig feed. Add 3000 g / ton of zinc oxide (2250 g / ton per ton of feed) to the feed for suckling piglets to prevent diarrhea in piglets. About 67,500 tons of zinc is consumed by piglet feed every year. Calculated based on nutritional needs, milk Piglets only need 3,000 tons, that is to say, 64,500 tons of zinc are discharged into the surrounding environment of the farm every year. Although zinc is an essential trace element for humans and ani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/111A23K20/121A23K20/10A23K40/30A23K50/30A23K50/60A23K50/75
Inventor 周建成
Owner HUNAN JINGTIAN TECH IND CO LTD
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