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Antioxidant-containing feed antioxidation effect assessment method and feed quality guarantee period prediction method

An antioxidant and shelf life technology is applied in the evaluation of the effect of feed additives and the evaluation of the effect of feed antioxidants. The effect of increasing sensitivity

Active Publication Date: 2016-12-07
重庆新威士生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when you can smell haze at room temperature, it means that the feed has been oxidized for a certain period of time, and the accuracy of this method is also limited.
⑤Comprehensive method: some additive companies or feed companies use two or more of the above-mentioned methods to conduct comprehensive evaluation, and improve the accuracy as much as possible, but the effect is still unsatisfactory

Method used

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  • Antioxidant-containing feed antioxidation effect assessment method and feed quality guarantee period prediction method
  • Antioxidant-containing feed antioxidation effect assessment method and feed quality guarantee period prediction method
  • Antioxidant-containing feed antioxidation effect assessment method and feed quality guarantee period prediction method

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Experimental program
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Effect test

preparation example Construction

[0062] 1) Preparation of mixed oil: animal oil and vegetable oil are both feed grade, mixed evenly according to the mass ratio (animal oil: vegetable oil = 1:1), animal oil needs to be heated and melted before being mixed with vegetable oil, and it is ready-to-use.

[0063] 2) Preparation of feed antioxidant samples: if the feed antioxidant samples are ready-made, you only need to prepare them; Research and development and effect evaluation of antioxidants by oxidant manufacturers), ready-to-use and ready-to-use. All samples are numbered for later use.

[0064] 3) Preparation of basal feed: Prepare corn-soybean meal type self-mixing powder (wherein corn and soybean meal are both feed grade, crushed into powder, and mixed evenly according to the mass ratio of corn: soybean meal = 2:1), through step-by-step premixing Add 4% compound premix (if you want to guide the production practice of a certain finished feed, you can add the corresponding premix of this type of feed, in othe...

Embodiment 1

[0100] High temperature accelerated oxidation test:

[0101] 1. Test material

[0102] Corn flour: feed grade, passed through a 20-mesh sieve, 0.8kg.

[0103] Soybean meal powder: feed grade, passed through a 20-mesh sieve, 0.4kg.

[0104] Animal oil: feed grade, 18g.

[0105] Vegetable oil: feed grade, 18g.

[0106] 4% piglet compound premix: 48g.

[0107] 2. Test samples

[0108] Feed antioxidant sample 1, sample 2, sample 3.

[0109] 3. Main test equipment

[0110] Constant temperature incubator: 0-150 ℃, one set.

[0111] 500ml beaker: several.

[0112] Analytical balance (0 ~ 200g) 1 set, precision 0.0001g.

[0113] 1 weighing spoon.

[0114] Several plastic storage bags.

[0115] One electronic balance (0-1000g) with an accuracy of 1g.

[0116] 4. Reagents

[0117] Chloroform-glacial acetic acid mixture Chloroform: glacial acetic acid = 1:1

[0118] Saturated potassium iodide solution: Take 10g of potassium iodide, add 7ml of water, and store in a brown bot...

Embodiment 2

[0140] Normal temperature storage test:

[0141] 1. Test material

[0142] Corn flour: feed grade, passed through a 20-mesh sieve, 0.8kg.

[0143] Soybean meal powder: feed grade, passed through a 20-mesh sieve, 0.4kg.

[0144] Animal oil: feed grade, 18g.

[0145] Vegetable oil: feed grade, 18g.

[0146] 4% piglet compound premix: 48g.

[0147] 2. Test samples

[0148] Feed antioxidant sample 1, sample 2, sample 3.

[0149] 3. Main test equipment

[0150] Constant temperature incubator: 0-150 ℃, one set.

[0151] 500ml beaker: several.

[0152] Analytical balance (0 ~ 200g) 1 set, precision 0.0001g.

[0153] 1 weighing spoon.

[0154] Several plastic storage bags.

[0155] One electronic balance (0-1000g) with an accuracy of 1g.

[0156] 4. Reagents

[0157] Chloroform-glacial acetic acid mixture Chloroform: glacial acetic acid = 1:1

[0158] Saturated potassium iodide solution: Take 10g of potassium iodide, add 7ml of water, and store in a brown bottle (newly p...

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Abstract

The invention discloses an antioxidant-containing feed antioxidation effect assessment method and a feed quality guarantee period prediction method. The assessment method comprises adding different antioxidants into base feed, carrying out mixing to obtain a test sample, utilizing base feed without an antioxidant as a blank control substance, putting all the test samples and the blank control substance into a thermostat, carrying out accelerated oxidation at a high temperature, when the blank control substance produces a rancidity smell, smelling all the test samples at fixed time intervals until the last sample produces a rancidity smell, then determining peroxide values of all the samples, predicting a quality guarantee period T according to the test cases and utilizing the time, peroxide value and quality guarantee period acquired when a rancidity smell is not found at the last time as antioxidation effect assessment basis. The assessment method utilizes a high temperature accelerated oxidation test to assess feed antioxidant effects and has the advantages of rancidity degree quantification, good comparability, good repeatability and quality guarantee period prediction at the normal temperature.

Description

technical field [0001] The invention relates to the evaluation of the effect of feed additives, and specifically refers to a method for evaluating the effect of feed antioxidants. The method can predict the shelf life of feed after the addition of feed antioxidants, and belongs to the technical field of feed additive effect evaluation. Background technique [0002] Feed is easily oxidized and destroyed during storage. In order to improve the freshness of the feed, it is common to add feed antioxidants to the feed. But how to evaluate the effect of feed antioxidants and provide scientific guidance for production practice, there is no unified national standard. [0003] At present, the methods commonly used by feed additive companies and feed companies to evaluate the effect of antioxidants are: ① peroxide value method: peroxide is an intermediate product of oil oxidation, which will be further oxidized into aldehydes, ketones, acids and other end products . Therefore, the ...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N1/38
CPCG01N1/38G01N33/0001
Inventor 卿兰才胡波
Owner 重庆新威士生物科技有限公司
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