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| Determination method of solvent residue in soybean meal |
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| DOI：10.12166/j.zgyz.1003-7969/2020.01.029 |
| KeyWord:soybean meal solvent residue determination method |
| FundProject:湖南省重点研发计划项目（2017NK2212） |
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| Abstract: |
| ：The method for accurate measuring the solvent residue in soybean meal was established by studying the preparation method of the base soybean meal and the pretreatment conditions of standard sample and sample. The results showed that when preparing the base soybean meal, adding appropriate water could help the residual organic solvent fully volatilize and obtain the qualified base soybean meal. The stability of standard sample results were not related to the addition of water. The pretreatment conditions of standard sample and sample were obtained as follows: heating equilibrium temperature 120 ℃, heating equilibrium time 120 min, water amount 200 μL(on the basis of 3 g soybean meal). The precision of repeated experiment of sample was 0-4.5%. In the case of the same sample, the measurement results of this method were higher than that of the national standard method. The method established was more accurate to reflect the quality of the soybean meal. |
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