Olea europaea leaf extractive feed additive and application thereof

The technology of olive leaf extract and feed additive is applied in the field of animal feed additive and active ingredient extraction from natural substances, and achieves the effects of improving Newcastle disease immunity, simple preparation method and promoting animal growth.

Inactive Publication Date: 2018-05-01
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

A toothpaste prepared from olive extracts and its preparation method (CN201510225644.5), a feed additive to improve the reproductive performance of male ducks (CN201710365462.7), but there are few reports on the use of olive leaf extracts as feed additives

Method used

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  • Olea europaea leaf extractive feed additive and application thereof
  • Olea europaea leaf extractive feed additive and application thereof
  • Olea europaea leaf extractive feed additive and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] In this embodiment, the application of an olive leaf extract as a feed additive in broiler rations is taken as an example.

[0031] ① Preparation of olive leaf extract:

[0032] Take 1 kg of naturally shade-dried phoenix olive leaves picked in November and pulverize them, add 10 L of ethanol-water with a volume fraction of 50% to the extraction kettle, extract at room temperature for 20 min with ultrasonic power 800 W, filter while hot, and collect The solution was then concentrated by rotary evaporation at 50°C, and the concentrated solution was vacuum freeze-dried to obtain an olive leaf extract with a solid content of 0.35 kg (oleuropein content 7.23%, total polyphenol content 9.58%).

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Abstract

The invention discloses an olea europaea leaf extractive feed additive and application thereof. The olea europaea leaf extractive feed additive is prepared by the method comprising the following steps: preparing olea europaea leaves which are naturally dried in the shade as the raw materials; preparing an ethyl alcohol-water green organic mixing system with certain concentration as an extracting solvent; quickly extracting under a room temperature with ultrasonic assistance; filtering and drying to obtain olea europaea leaf extractive rich in active ingredients. The olea europaea leaf extractive prepared by the method is used as the feed additive and capable of promoting animal growth, improving the resistance to oxidative stress as well as improving immunity; the olea europaea leaf extractive feed additive is applicable to the field of nonreactive animal feed additives.

Description

technical field [0001] The invention relates to the fields of extraction of active ingredients in natural products and animal feed additives, in particular to an olive leaf extract feed additive and its application in promoting growth, resisting oxidative stress and enhancing immunity in animals. Background technique [0002] With the global attention to nutrition and health, people's total demand for high-quality, high-protein foods such as meat, eggs, milk, and livestock products continues to increase, which will promote the development of my country's aquaculture industry. However, the overall development level of my country's aquaculture industry is relatively low compared with developed countries. The fundamental reason is that the development level of my country's feed industry is relatively low, especially feed additives. One of the bottlenecks in the development of feed additives is the lack of new natural green additives to replace antibiotics. Based on the above r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K40/00A23K50/75
CPCA23K10/30A23K40/00A23K50/75
Inventor 谢普军黄立新张彩虹邓叶俊成江王晓杰
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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