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Preparation method of powdery soybean meal amino acid component analysis standard substance

A component analysis and standard substance technology, applied in the field of standard substance preparation, can solve problems such as blanks, achieve low cost, solve the problem of differences in test results, and achieve good quality effects

Inactive Publication Date: 2018-10-16
马长征 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country has amino acid mixed solution standard material (No.: GBW(E)100062), but the amino acid component analysis standard material using soybean meal as the matrix is ​​still blank

Method used

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  • Preparation method of powdery soybean meal amino acid component analysis standard substance
  • Preparation method of powdery soybean meal amino acid component analysis standard substance
  • Preparation method of powdery soybean meal amino acid component analysis standard substance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation method of powdery soybean meal amino acid component analysis standard substance of the present invention, the detailed steps of this preparation method are as follows:

[0038] a, impurity removal: first, the commercially available defatted soybean meal is screened by a 20-mesh woven sieve for impurity removal;

[0039] B, pulverization: pulverize the defatted soybean meal after step a removes impurities, and sieve after pulverization to obtain soybean meal powder with a fineness of 60 objects;

[0040] c. Degreasing: soak the soybean meal obtained after the pulverization in step b into the solvent anhydrous ether for 12 hours, fully stir every 2 hours during the immersion process, filter after immersion, and filter out the solvent anhydrous Diethyl ether to obtain defatted soybean meal;

[0041] d, drying: the soybean meal powder obtained after the degreasing of step c is naturally dried for 6 hours (natural drying is: the soybean meal powder after the...

Embodiment 2

[0137] The preparation method of powdery soybean meal amino acid component analysis standard substance of the present invention, the detailed steps of this preparation method are as follows:

[0138] a, impurity removal: first, the commercially available defatted soybean meal is screened by a 20-mesh woven sieve for impurity removal;

[0139] B, pulverization: the degreasing soybean meal after step a decontamination is pulverized, obtains the soybean meal powder that fineness is 40 purposes after pulverization;

[0140] c, degreasing: soak the soybean meal powder obtained after the pulverization of step c into the solvent anhydrous ether for 15 hours, fully stir every 3 hours during the immersion process, filter after immersion, and filter out the solvent without Water ether, obtains defatted soybean meal powder;

[0141] d, drying: the soybean meal powder obtained after the degreasing of step c is naturally dried for 4 hours (natural drying is: the soybean meal powder after ...

Embodiment 3

[0149] The preparation method of powdery soybean meal amino acid component analysis standard substance of the present invention, the detailed steps of this preparation method are as follows:

[0150] a, impurity removal: first, the commercially available defatted soybean meal is screened by a 20-mesh woven sieve for impurity removal;

[0151] B, pulverization: the degreasing soybean meal after step a decontamination is pulverized, and after pulverization, obtain fineness and be 50 purpose soybean meal powders;

[0152] c, degreasing: soak the soybean meal powder obtained after the pulverization of step c into the solvent anhydrous ether for 14 hours, fully stir every 2 hours during the soaking process, filter after soaking, and filter out the solvent. Water ether, obtains defatted soybean meal powder;

[0153] d, drying: the soybean meal powder obtained after step c degreasing is naturally dried for 5 hours (natural drying is: the soybean meal powder after degreasing is laid ...

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Abstract

The invention discloses a preparation method of a powdery soybean meal amino acid component analysis standard substance. The preparation method comprises the following steps: cleaning the degreased soybean meal, and then grinding to obtain soybean meal powder; adding the soybean meal powder into a solvent, and soaking for degreasing; naturally drying and baking the degreased soybean meal powder inturn, to obtain a soybean meal powder sample; uniformly mixing the soybean meal powder sample, and then sampling for uniformity detection; drying the uniformly mixed soybean meal sample again, and then subpackaging, performing irradiation inactivation on the subpackaged sample; finally, performing vacuum packaging, and storing at -20 DEG C. By adopting the method for preparing the soybean meal amino acid component analysis standard substance, key problems in the prior art are solved, a blank in the field of soybean meal powdery amino acid standard substance is filled in, and a foundation is laid for improving the development level of standard substances in terms of public health, food, environment and the like.

Description

1. Technical field: [0001] The invention relates to a preparation method of a standard substance, in particular to a preparation method of a powdery soybean meal amino acid composition analysis standard substance. 2. Technical background: [0002] Soybean meal is a very good plant protein raw material, rich in protein, balanced amino acid composition, rich in nutrition, and has become the main source of protein in feed. The most reliable and effective means. At present, the main methods for amino acid analysis are the national standard method GB / T 18246 for automatic amino acid analyzer and pre-column derivatization reversed-phase high-performance liquid chromatography. According to the national standards for corresponding testing, corresponding feed standard substances are required. At present, my country has amino acid mixed solution standard material (No.: GBW(E)100062), but the amino acid component analysis standard material using soybean meal as the matrix is ​​still ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06
CPCG01N30/06G01N2030/042
Inventor 马长征兰尊海李佳
Owner 马长征
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