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| Research and practice of rice bran granulation and extraction process |
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| DOI： |
| KeyWord:rice bran separation of rice bran and fine broken rice granulation extraction |
| FundProject: |
| Author Name | Affiliation | | AN Xiaodong1, CHEN Xiaowei2, YANG Lei1, CHEN Xiaojun1,
WU Peng1, CHU Qiang1 | 1.Zhengzhou Qi′e Grain and Oil Machinery Co. , Ltd. , Zhengzhou 450000,China
2.College of Food
Science and Technology, Henan University of Technology, Zhengzhou 450000, China |
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| Abstract: |
| Aiming to verify the separation effect of improved rice bran and fine broken rice separator and provide certain technical reference for rice bran granulation and extraction process, rice bran granulation and solvent extraction process was used to extract crude rice bran oil,including air separation for rice bran and fine broken rice, granulation drying, rotary leaching, negative pressure evaporation,DTDC wet meal desolventizing. By summarizing some problems and operation experience in production, the rice bran and fine broken rice separator was improved,the granulation treatment was determined, and the key process parameters of rice bran granulation and extraction process were determined.The results showed that rice bran and fine broken rice were separated very well by using the improved rice bran and fine broken rice separator, and the system had a larger capacity. Rice bran particle was prepared using low temperature granulation drying instead of expansion. The key technical parameters of rice bran granulation and solvent extraction process were confirmed as follows: granulation temperature 60 ℃, particle diameter 3.7 mm, discharge temperature of drying machine 60 ℃, particle moisture after drying 5%, solvent extraction temperature 55 ℃, vacuum of evaporation system 70 kPa, oil concentration and temperature of the first evaporator 85% and 65 ℃, oil concentration and temperature of the second evaporator 95% and 98 ℃, oil temperature of stripper 102 ℃, and DTDC vapor phase temperature 76 ℃. The optimized rice bran granulation and solvent extraction process can improve the quality of crude rice bran oil and meal, and reduce energy consumption. |
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