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| Effect of refining process on trans fatty acids in maize oil |
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| DOI： |
| KeyWord:maize oil refining trans fatty acid deodorization condition |
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| Abstract: |
| The change trend of trans fatty acids content in maize oil during refining process was studied, and the effect of oil refining process on trans fatty acids in maize oil was investigated. The results showed that trans fatty acids was mainly produced in deodorization section. Under the conditions of deodorization temperature 210-230 ℃ and deodorization time 60 min, the main trans fatty acid was C18∶ 2t，and when the deodorization temperature rose to 250 ℃, C18∶ 3t was generated. The higher the deodorization temperature and the longer the deodorization time, the higher the trans fatty acids content. Under the conditions of deodorization temperature 210-230 ℃ and deodorization time 100 min, the trans fatty acids in maize oil was less than 0.3%, and its quality indexes could meet the requirements of the first grade maize oil of national standard. |
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