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Process optimization of subcritical low-temperature extraction of millet bran oil |
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DOI:10.19902/j.cnki.zgyz.1003-7969.240418 |
KeyWord:subcritical low-temperature extraction millet bran oil response surface methodology oil extraction rate |
FundProject: |
Author Name | Affiliation | LI Junchao1, QIN Xuelei1, CAI Jiajun2, REN Chunming3, LIU Liang3 | 1.Centre Testing International Technology (Henan) Co. , Ltd. , Zhengzhou 450000, China 2.Pinbiao
Environmental Technology Co. , Ltd. , Xi′an 710082, China 3.COFCO ET(Xi′an)
International Engineering Co. , Ltd. , Xi′an 710082, China |
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Abstract: |
Aiming to promote the utilization of millet bran resources, the millet bran oil was extracted by subcritical low-temperature extraction technology. Single factor experiments were conducted to investigate the effects of extraction time, extraction temperature, and solid-liquid ratio on the extraction rate of millet bran oil. Based on this, with the oil extraction rate of millet bran as an index, the parameters of subcritical low-temperature extraction of millet bran oil were optimized using response surface methodology. The results showed that the optimal process parameters for extracting oil from millet bran by subcritical low-temperature extraction were as follows: extraction time 25 min, extraction temperature 35 ℃ and solid-liquid ratio 1∶ 4. Under these conditions, the oil extraction rate of millet bran was 95.3%. Overall, the process can be effectively used for the extraction of millet bran oil. |
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