Solvent extraction is a common method of extracting edible oil, and oil is extracted from raw materials by using specific solvents. In the process of solvent extraction, how to improve the oil yield of edible oil is a very important problem. The following will introduce several methods to improve the oil yield of edible oil.

First of all, choosing a suitable solvent is the key to improve the oil yield of edible oil. Different raw materials may need different solvents for extraction, so the characteristics of raw materials and the solubility of solvents need to be considered when selecting solvents. Generally speaking, common solvents include n-hexane, ethanol, acetone, etc. Suitable solvents can be selected for different raw materials to improve oil yield.
Secondly, controlling the extraction temperature is also the key to improve the oil yield of edible oil. In the process of solvent extraction, the control of temperature plays an important role in the dissolution and separation of oil. Generally speaking, higher temperature can speed up the dissolution of oil, but too high temperature may lead to oxidation and loss of oil, so it is necessary to choose the appropriate extraction temperature according to the specific situation.
In addition, proper stirring and extraction time can also improve the oil yield of edible oil. Proper stirring can promote the contact between solvent and raw materials and speed up the dissolution of oil; Proper extraction time can make the solvent fully contact with the grease in the raw materials, thus improving the oil yield.
Finally, the treatment of residual solvents is also the key to improve the oil yield of edible oil. In the process of solvent extraction, some solvent may remain in edible oil, so it is necessary to treat the residual solvent properly to ensure that the final edible oil meets the hygiene standards.
In a word, the oil yield of edible oil can be effectively improved by selecting suitable solvents, controlling extraction temperature, stirring and extracting time properly and treating residual solvents. These methods can not only improve the production efficiency, but also ensure that the quality of the final edible oil meets the standards, thus better meeting the market demand.