Method for batch detecting crude fat content in feed raw materials

A feed raw material and batch detection technology, which is applied in the direction of removing certain components and weighing, can solve the problems of slow reduction and measurement speed of the detection method, and achieve the effect of solving the problem of surface hardening, improving accuracy, and increasing the contact area

Inactive Publication Date: 2019-02-12
日照普惠动物营养科技有限公司
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  • Claims
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Problems solved by technology

[0006] The technical problem mainly solved by the present invention is to provide a method for batch detection of crude fat content in feed raw materials, which can solve the problem of too slow subtraction speed of existing detection methods

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  • Method for batch detecting crude fat content in feed raw materials

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Embodiment Construction

[0030] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0031] A method for batch detection of crude fat content in feed raw materials, the detection method is as follows;

[0032] Step 1. Sample preparation: roll up a number of filter paper tubes with degreasing filter paper, grind the samples to be tested until they pass through a 40-mesh sieve, and put Y grams of each sample into the filter paper tubes rolled up with degreasing filter paper Seal both sides of the filter paper tube with absorbent cotton and number it, put it in a freeze dryer for drying and weigh it, and its weight is Y1;

[0033] Step 2. Pretreatment: Put the dried sample filter paper tube in step 1 into a grinding bottle, add petroleum ether to make it cover 2cm of the filter pap...

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Abstract

The invention discloses a method for batch detecting a crude fat content in a feed raw material. The invention belongs to the field of feed technology detection. According to the method, time can be reasonably utilized and a speed of crude fat extraction is accelerated by splitting the extraction of the crude fat in a sample into pretreatment and extraction by Soxhlet extractor. According to the method for batch detecting the crude fat content in the feed raw material, the sample is subjected to freeze drying before extraction, so that not only the effects of moisture contained in the sample and the oxidation of crude fat by heating on the detecting result are avoided, but also the contact area of petroleum ether and the sample is increased, the detecting time is shortened, and the detecting precision is improved.

Description

technical field [0001] The invention belongs to the field of feed technology detection, in particular to a method for batch detection of crude fat content in feed raw materials. Background technique [0002] Fat is a very important energy source in feed, and generally fat can provide 2.25 times the energy equivalent to carbohydrates. Adding fat can provide a higher energy concentration in a smaller space to meet the high energy needs of some livestock, and can increase the concentration of other nutrients and reduce the heat consumption of fat. It can provide essential fatty acids for animals, and can also promote the absorption and utilization of fat-soluble vitamins. Thereby ensuring the normal growth and development of livestock. [0003] With the development of China's feed industry and the increasing competition, as well as the improvement of people's awareness of feed energy, the correct selection of added fat has become one of the key means to improve feed quality. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 张艳
Owner 日照普惠动物营养科技有限公司
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