Study on the Leaching Technology of Soybean Oil with High Yield

Study on the Leaching Technology of Soybean Oil with High Yield
In this paper, the extraction technology of soybean oil with high yield was discussed, and the effects of moisture content, thickness, temperature, time and ratio of material to liquid on the residual oil content of cake, color and phospholipid content of soybean oil were analyzed by single factor experiments. The key factors affecting the yield of soybean oil were liquid ratio, leaching temperature and leaching time.
Through orthogonal test, the optimum parameters of high yield soybean oil machine leaching process are as follows: immersion water 7%, material-liquid ratio 1:0.8, leaching temperature 60 C and leaching time 80 min. Under the optimum conditions, the residual oil rate in soybean billet can be reduced to 0.65%.
At present, the oil-making processes widely used in industrial production include microwave drying mechanical technology, press method, leaching method and press-leaching combined method. Because of its high extraction rate, low solubility to non-oily substances, colloidal compounds, sulfides, etc., and purified oil, the leaching process is widely used in oil processing enterprises at home and abroad.

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