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Method for preparing composite antibiotic-replacing feed additive by taking ginkgo leaf residue lipoid extract as raw material

A technology of feed additive and ginkgo leaf residue, which is applied in the direction of medical raw materials derived from Ginkgo biloba, the molding or processing of animal feed, animal feed, etc., can solve the problems of research and reports on feed additives that have not been replaced, and achieve high Value-based utilization, high added value, and the effect of improving immunity

Inactive Publication Date: 2021-08-24
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

[0004] At present, there are no related studies and reports on the preparation of antibiotic-replacement feed additives using ginkgo lipid extracts as raw materials at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Preparation of Ginkgo Leaf Residue Lipid Extract Composite Antibiotic Feed Additive

[0031] (1) Preparation of Ginkgo biloba residue lipid extract microcapsules

[0032] Take 100g of chitosan and add it to 20L of 1% acetic acid solution to prepare a chitosan-acetic acid solution with a concentration of 0.5%; take 50g of sodium tripolyphosphate and dissolve it with 10L of water to prepare a concentration of 0.5% tripolyphosphoric acid Sodium aqueous solution: Mix 5L sodium tripolyphosphate aqueous solution with 20L chitosan acetic acid solution, stir evenly at a temperature of 30°C and a rotating speed of 400r / min to obtain a mixed solution, then slowly add 15g of ginkgo leaves while stirring Lipid extract from residue, then add 2L of n-hexane, continue to stir for 60 minutes, centrifuge at high speed for 10 minutes after stirring, take the precipitate, wash it with water, and dry to obtain 145.6 g of ginkgo leaf residue lipid extract microcapsule product, with a drug l...

Embodiment 2

[0036] Preparation of Ginkgo Leaf Residue Lipid Extract Composite Antibiotic Feed Additive

[0037] (1) Preparation of Ginkgo biloba residue lipid extract microcapsules

[0038] Take 100g of chitosan and add it to 20L of 1% acetic acid solution to prepare a chitosan-acetic acid solution with a concentration of 0.5%; take 50g of sodium tripolyphosphate and dissolve it with 10L of water to prepare a concentration of 0.5% tripolyphosphoric acid Sodium aqueous solution: Mix 4L sodium tripolyphosphate aqueous solution with 20L chitosan acetic acid solution, stir evenly at a temperature of 40°C and a rotating speed of 500r / min to obtain a mixed solution, then slowly add 20g of ginkgo leaves while stirring Then add 1.5L of n-hexane, continue to stir for 70min, centrifuge at high speed for 15min after stirring, take the precipitate, wash it with water, and dry to obtain 139.8g of ginkgo leaf residue lipid extract microcapsule product, the drug loading rate is 35.4%.

[0039] (2) Pre...

Embodiment 3

[0042] Preparation of Ginkgo Leaf Residue Lipid Extract Composite Antibiotic Feed Additive

[0043] (1) Preparation of Ginkgo biloba residue lipid extract microcapsules

[0044]Take 100g of chitosan and add it to 20L of 1% acetic acid solution to prepare a chitosan-acetic acid solution with a concentration of 0.5%; take 50g of sodium tripolyphosphate and dissolve it with 10L of water to prepare a concentration of 0.5% tripolyphosphoric acid Sodium aqueous solution; mix 4.5L sodium tripolyphosphate aqueous solution with 20L chitosan acetic acid solution, stir evenly at a temperature of 45°C and a rotating speed of 600r / min to obtain a mixed solution, then slowly add 12g of ginkgo biloba while stirring Leaf residue lipid extract, then add 2L of n-hexane, continue to stir for 80min, centrifuge at high speed for 20min after stirring, take the precipitate, wash it with water, and dry to obtain 142.8g of ginkgo leaf residue lipid extract microcapsule product, the drug loading rate i...

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Abstract

The invention relates to a method for preparing a composite antibiotic-replacing feed additive by taking a ginkgo leaf residue lipoid extract as a raw material. The preparation method comprises the following steps: by taking a ginkgo leaf residue lipid extract as a raw material, preparing ginkgo leaf residue lipid extract microcapsules by taking chitosan as a wall material and the ginkgo leaf residue lipid extract as a core material by adopting an ionic cross-linking method; mixing the ginkgo leaf residue lipid extract microcapsules with one or more of other alternative plant extracts, plant essential oil, probiotics, oligosaccharide, organic acid, an enzyme preparation and antibacterial peptide according to a certain mass ratio until the materials are uniformly mixed, then adding a certain amount of a carrier, continuously performing uniform mixing, and obtaining the ginkgo leaf residue lipoid extract composite antibiotic-replacing feed additive product. The process is convenient to operate, and the obtained product is high in additional value, good in resistance replacement effect and suitable for being popularized and used as a resistance replacement additive in livestock and poultry or aquaculture feed.

Description

technical field [0001] The invention relates to the technical field of forest source extract feed additives, in particular to a method for preparing compound antibiotic feed additives using ginkgo biloba residue lipid extract as raw material. Background technique [0002] Ginkgo is an important economic forest tree species in my country. The ginkgo industry chain is 20 billion yuan, and it is an important local agricultural and forestry industry. my country's ginkgo resources account for more than 85% of the world, the planting area is 400,000 hectares, and the annual output of ginkgo dry leaves is more than 40,000 tons. At present, Ginkgo biloba is mainly used for processing Ginkgo biloba extract, which mainly contains flavonoids and lactone active substances, and is widely used in medicine, functional food and cosmetics. The traditional ginkgo extract processing process will produce a large number of by-products such as leaf residue, most of which are discarded or treated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/37
CPCA23K10/37A23K20/105A23K20/26A23K10/30A23K20/163A23K10/16A23K10/18A23K20/111A23K20/189A23K20/147A23K20/28A23K20/20A23K40/30A61K36/16A61K31/722A61K9/5036A61K45/06A61P31/04A61P31/10A61P29/00A61P37/04A61K2300/00Y02P60/87
Inventor 王成章周昊
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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