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| Orthogonal experiment method in the application research of formaldehyde volatile in wheat flour extraction conditions |
| Received:March 25, 2014 Revised:April 11, 2014 |
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| DOI： |
| KeyWord:Orthogonal experiment method; Formaldehyde; Oscillation extraction; HPLC; Wheat flour |
| Author | Institution |
| ZHANG ChunFang |
河北省应用化学重点实验室 燕山大学环境与化学工程学院 |
| TONG Qi |
河北省应用化学重点实验室 燕山大学环境与化学工程学院 |
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| Abstract: |
| The extraction of formaldehyde in wheat flour is a complicated multi-factor problem. In this article, using orthogonal test method, choose L9 (34) orthogonal test table .From the extraction solvent, extraction temperature, extraction time and other factors and levels of select the best condition of oscillation extraction of formaldehyde wheat flour. Formaldehyde extraction experiments before using Nash reagent column high performance liquid chromatography method. The results show that temperature is the most important factor of formaldehyde extraction in wheat flour, the best extraction conditions for extracting temperature 30 ℃, extract for sodium sulfate, extracting time for 40 min.
Key words: Orthogonal experiment method; Formaldehyde; |
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