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| Optimization of preparation of walnut oil by automatic horizontal hydraulic press |
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| DOI： |
| KeyWord:walnut oil automatic horizontal hydraulic press response surface methodology residual oil rate of walnut cake |
| FundProject: |
| Author Name | Affiliation | | LIU Liang1, ZHANG Yu1, LIU Jian1, SHI Xuepeng2, LYU Penghui2 | 1.COFCO ET (Xi′an) International Engineering Co.?, Ltd.?, Xi′an 710082，China； 2.Luoyang Zhaoge Environmental Protection Techonogy Co.?, Ltd.?, Luoyang 471000, Henan, China |
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| Abstract: |
| In order to reduce the production cost of walnut oil prepared by automatic horizontal hydraulic press, the effects of raw material particle size, raw material moisture and pressing temperature on the residual oil rate of walnut cake were studied by single factor experiment. Then with the residual oil rate of walnut cake as an index, the conditions of preparing walnut oil by the automatic horizontal hydraulic press were optimized using response surface methodology. The results showed that the optimal process conditions of preparing walnut oil by the automatic horizontal hydraulic press were obtained as follows: raw material particle size 120 meshes(0.125 mm), raw material moisture 1.5%, pressing temperature 60℃. Under these conditions, the residual oil rate of walnut cake was 13.43%. |
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