Oil tea peel extract containing oil tea peel polyphenol as well as preparation method and application of oil tea peel extract

A technology of camellia oleifera peel and extraction method, which is applied in application, animal feed, animal feed, etc., to achieve the effects of reducing pollution, simple and easy production process, and improving utilization rate

Inactive Publication Date: 2011-04-06
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, starting from the protection of polyphenol activity in Camellia oleifera peel, and using polyphenols as the main object to design the extraction technology, and using the extract as a feed natural antioxidant has not yet been reported in the relevant literature

Method used

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  • Oil tea peel extract containing oil tea peel polyphenol as well as preparation method and application of oil tea peel extract
  • Oil tea peel extract containing oil tea peel polyphenol as well as preparation method and application of oil tea peel extract
  • Oil tea peel extract containing oil tea peel polyphenol as well as preparation method and application of oil tea peel extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Example of the preparation method of Camellia oleifera peel extract of the present invention (ultrasonic treatment is used in the extraction step)

[0031] (1) First, crush the fresh camellia oleifera peel and pass through a 50-mesh sieve.

[0032] (2) Extraction with methanol, the amount of per gram of camellia oleifera peel powder is 18 mL, the pH value is adjusted to 3.0 with 5 wt% hydrochloric acid, the extraction temperature is 30°C, and the extraction time is 4 h. Extraction system, ultrasonic power 500W, ultrasonic action time 30 min. After the leaching was completed, centrifuge at 5000 rpm for 15 min, and take the supernatant.

[0033] (3) The polyphenol extract from camellia oleifera peel was separated and purified by nanomembrane. The conditions for membrane separation are as follows: a nanometer ultrafiltration membrane system is used, the operating pressure is 0.8 MPa, and the operating temperature is 30°C. Extract the concentrated solution, rec...

Embodiment 2

[0038] Example 2 Example of the preparation method of Camellia oleifera peel extract of the present invention (ultrasonic treatment is not used in the extraction step)

[0039] (1) First, the fresh camellia oleifera peel is pulverized with a knife mill, and passed through a 50-mesh sieve.

[0040] (2) Extract with methanol, the amount of per gram of camellia oleifera peel powder is 18 mL, the pH value is adjusted to 3.0 with 5% hydrochloric acid, the extraction temperature is 30°C, and the extraction time is 4 h. After the leaching was completed, centrifuge at 5000 rpm for 15 min, and take the supernatant.

[0041] (3) The polyphenol extract from camellia oleifera peel was separated and purified by nanomembrane. The conditions for membrane separation are as follows: a nanometer ultrafiltration membrane system is used, the operating pressure is 0.8 MPa, and the operating temperature is 30°C. Extract the concentrated solution, recover the organic solvent, and the concentration...

Embodiment 3

[0045] Example 3 Optimum Experimental Example of Emulsifier Addition in Feed Additives

[0046] The test was divided into six groups. Camellia oleifera peel extract extract containing polyphenols of camellia oleifera peel was mixed with emulsifier monoglyceride in different mass ratios, and stirred evenly while mixing, and the mixed system was placed in a 500mL beaker. Each group was formulated as follows:

[0047] Test group A: Camellia oleifera peel extract extract containing polyphenols from camellia oleifera peel was mixed with emulsifier monoglyceride at a mass ratio of 1:3, added to soybean oil to fully dissolve it, so that the polyphenols contained in camellia oleifera peel The quality of Camellia oleifera peel extract extract is 1% of the volume of soybean oil, add water equivalent to 2 v% of the soybean oil mixture, and stir evenly;

[0048] Test group B: Camellia oleifera peel extract extract containing polyphenols from camellia oleifera peel was mixed with emulsifi...

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Abstract

The invention provides an oil tea peel extract containing oil tea peel polyphenol as well as a preparation method and application of the oil tea peel extract. The preparation method of the oil tea peel extract containing the oil tea peel polyphenol comprises the following steps: (1) crushing fresh oil tea peel; (2) lixiviating the crushed peel with an organic solvent and meanwhile acting on an extraction system by ultrasonic waves; (3) separating and purifying with a nanometer film; and (4) drying in vacuum. In the invention, the oil tea peel extract containing the oil tea peel polyphenol is mixed with an emulsifying agent and a synergist, then heated and finally added to fatty oil to obtain a feed anti-oxidant additive. In the oil tea peel extract, the polyphenol content reaches up to 55-80wt% (based on gallic acid); and the feed anti-oxidant additive made by the oil tea peel extract can effectively prolong the quality guarantee period of feed and improve the utilization ratio of the feed. The preparation method has the characteristics of high extraction yield, high utilization ratio of raw materials, and simple, convenient and feasible production process, is easy to realize industrialization and the like.

Description

technical field [0001] The invention relates to an extract of camellia oleifera peel and its preparation method and application, in particular to an extract of camellia oleifera peel containing polyphenols of camellia oleifera peel and its preparation method and application. Background technique [0002] Antioxidants currently used in feed are mainly butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), ethoxyquinoline (EMQ), propyl gallate (PG) and tocopherol mixed concentrate ( See CN200780033462, CN03131718, CN95103888, CN200610069198), but the potential toxic and side effects of these commonly used chemically synthesized antioxidants are difficult to estimate, such as BHT can cause gastric cancer in rats, and can also inhibit respiratory enzymes in the body. [0003] In this way, the natural antioxidants with higher safety extracted from plants have attracted more and more attention. [0004] Camellia oleifera is a unique oil crop in my country. It is widely p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/14A23K1/16A23L3/3472A23K20/10
Inventor 钟海雁周波朱彬龙奇志龚吉军
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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