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| Supercritical CO2 extraction of oat oil |
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| DOI： |
| KeyWord:supercritical CO2 extraction oat oil fatty acid composition quality |
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| Abstract: |
| The technology of supercritical CO2 extraction of oat oil was studied and oat oil quality was analyzed with oat diced as raw material. First of all, through the single factor experiment, the effets of various factors on the extraction rate of oat oil were studied; secondly, supercritical CO2 extraction technology parameters were optimized by response surface mothodology; finally the fatty acid composition and content of oat oil were analyzed by GC-MS and oat oil quality was analysed. The results showed that the optimal technology parameters of supercritical CO2 extraction of oat oil were obtained as follows: charge amount 50 g, static extraction time 74 min, dynamic extraction time 160 min, extraction pressure 45 MPa and extraction temperature 50?℃. Under these conditions, the extraction rate reached 56.99%. The oat oil extracted by supercritical CO2 was clear and transparent, golden yellow with special wheat flavor, and the content of unsaturated fatty acids was 87.49%. |
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