Animal feed processed by aid of ginkgo biloba sarcotesta and method for preparing animal feed

A technology of ginkgo testa and animal feed, applied in the fields of biology, agriculture, and chemical industry, can solve the problems of waste of biological resources, environmental pollution of ginkgo testa, etc., and achieve the effects of saving food, promoting the growth of poultry and livestock, and cleaning the environment

Inactive Publication Date: 2016-05-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The discarded ginkgo testa not only pollutes the environment, but also wastes biological resources

Method used

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  • Animal feed processed by aid of ginkgo biloba sarcotesta and method for preparing animal feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A Ginkgo biloba exocarp animal feed is prepared by the following method: (1) Take 5 kg of fresh gingko exocarp, crush it with a fruit juicer, centrifuge to remove the juice, use petroleum ether as the extractant, and crush it After centrifugal de-juicing, Ginkgo biloba exocarp: The mass ratio of the extractant is 1:0.8. Mix the two, stir and extract with a blender for 20 minutes. Centrifugally separate the extractant containing ginkgolic acid to obtain the ginkgo exocarp filter residue; (2 ) Then add petroleum ether again according to the ginkgo seed coat filter residue: the mass ratio of the extractant is 1:0.8, repeat the above operation, after repeated extraction for 3 times, spray and wash with a small amount of tap water while centrifuging to remove the remaining ginkgo The organic solvent in the exo-testa filter residue obtains the ginkgo exo-testa animal feed. The petroleum ether containing ginkgolic acid can be reused as an extractant after being distilled to rem...

Embodiment 2

[0025] A Ginkgo biloba exocarp animal feed is prepared by the following methods: (1) Ginkgo biloba exocarp dried in the air is crushed with a Chinese medicine pulverizer with a reamer, passed through a 40-mesh sieve, and paraffin oil is used as the extractant. After Ginkgo biloba testa: The mass ratio of the extractant is 1:2, and the mixture is transferred to a sand mill for sanding and extraction for 10 minutes. The extractant containing ginkgolic acid is separated by centrifugation to obtain the ginkgo biloba filter residue; (2) Then add the paraffin oil again according to the ratio of the ginkgo seed coat filter residue: the mass ratio of the extractant to 1:2, repeat the above operation, repeat the extraction 4 times, and wash with a small amount of tap water while centrifuging to remove the remaining ginkgo. The organic solvent in the seed coat filter residue obtains Ginkgo biloba explant coat animal feed. The paraffin oil containing ginkgolic acid can be reused as an ext...

Embodiment 3

[0028] An animal feed for Ginkgo biloba ectocarp is prepared by the following method: (1) Take 2kg of fresh gingko ichthyosaur, crush it with a fruit juicer, centrifuge to remove the juice, and use No. 97 unleaded gasoline (97%). 2% isooctane and 3% n-heptane) as the extractant. Mix the ginkgo biloba exocarp after centrifugal de-juicing: the mass ratio of the extractant is 1:1, stir and extract with a mixer for 0.5h, and centrifuge. The extractant containing ginkgolic acid is used to obtain the ginkgo biloba explants filter residue; (2) Then add No. 97 unleaded gasoline at the ratio of the ginkgo explants filter residue: extractant mass ratio of 1:1, repeat the above operation, and repeatedly extract After 3 times, it was centrifuged and washed with a small amount of tap water to remove the organic solvent remaining in the filter residue of the ginkgo seed coat, and the animal feed of the ginkgo seed coat was obtained. The No. 97 unleaded gasoline containing ginkgolic acid can ...

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Abstract

The invention belongs to the field of agricultural breeding, and particularly relates to animal feed processed by the aid of ginkgo biloba sarcotesta and a method for preparing the animal feed. The animal feed processed by the aid of the ginkgo biloba sarcotesta is made of the ginkgo biloba sarcotesta. The method includes repeatedly extracting the ginkgo biloba sarcotesta by the aid of organic solvents to remove ginkgolic acid which is a toxic substance in the ginkgo biloba sarcotesta; centrifugally washing the ginkgo biloba sarcotesta to remove the residual organic solvents to obtain the animal feed. The animal feed and the method have the advantages that the residual quantity of the ginkgolic acid in the animal feed made of the ginkgo biloba sarcotesta is lower than 10 mg/kg, and the residual quantity of the organic solvents is lower than 0.5 wt%; the ginkgo biloba sarcotesta contains abundant starch, polysaccharides, amino acid, diversified vitamins and proteins, further contains small quantities of ginkgo flavone, terpene lactones, daucosterol and diversified trace elements and is processed to obtain a ginkgo biloba sarcotesta feed additive, the ginkgo biloba sarcotesta feed additive can be used for breeding animals, and accordingly effects of preventing and treating diseases, protecting health and promoting growth of livestock can be realized; food can be saved, environments can be cleaned, pollution can be reduced, and requirements of the modern breeding industry on environmental friendliness, environmental protection, safety and zero pollution can be met.

Description

Technical field [0001] The invention belongs to the fields of agriculture, biology, and chemical industry, and specifically relates to an animal feed processed from ginkgo biloba outer seed coat and a preparation method thereof. Background technique [0002] Ginkgo is a unique forestry resource in my country, and its leaves and fruits have unique medicinal value. At present, there are tens of millions of mature ginkgo trees planted in my country, with an annual output of 40,000 tons of dried ginkgo leaves and 30,000 tons of ginkgo (fruit core). Ginkgo production accounts for about 90% of the world's total production. Abundant ginkgo resources, along with about 100,000 tons of fresh ginkgo biloba explants per year (about 3 times the weight of ginkgo), but because of its toxic and corrosive ginkgo phenolic acid (about 5%) , Has never been used. The discarded Ginkgo biloba ectoca not only pollutes the environment, but is also a waste of biological resources. Summary of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/37
CPCY02P60/87
Inventor 雷家珩吴琼杜小弟何康
Owner WUHAN UNIV OF TECH
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