Pressed rapeseed oil, it is generally necessary to stir the seeds.The quality of fried seeds directly affects the oil yield and oil effect, “three points press, seven points fry”. If the pressed rapeseed oil are too light, the oil yield will be reduced. Fried seeds are too old, although the oil yield is high, but the color of the oil will be black, and there will be a bitter taste.Sauteing seeds and pressing are two important links in the oil production process.
The first step is to fry the seeds in pressed rapeseed oil
pressed rapeseed oil:When frying seeds, under the influence of temperature and moisture, the structure of protein is damaged, especially the influence of temperature is more important, more than 60 degrees began to denaturation. The more pressed rapeseed oil thorough the protein denaturation, the higher the oil yield. To this end, in the process of frying seeds, we use a small fire long frying, high moisture frying seeds, low moisture pressing process.
The second process is the pressing of rapeseed oil
Pressed rapeseed oil:After the preheating of the press chamber is normal, the clinker can be officially cast and the thickness of the cake can be adjusted to 1.25-2.5 mm. The effect of pressing is good or bad, can randomly determine whether the fried material is qualified. Therefore, the pressing operation should be observed, checked and adjusted frequently. In order to improve the oil yield of the press as much as possible, the press cake should be adjusted to be thinner, but it is required that the smoke and scorched cake should not be emitted, and the residual oil of the dry cake should be controlled between 5%-6%.
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