Pure physical squeezing technology for sunflower seed oil

Abstract

The invention provides a pure physical squeezing technology for sunflower seed oil. The pure physical squeezing technology comprises the steps of: 1) selecting materials and husking, screening the harvested the sunflower seeds, removing the impurities in the sunflower seeds, husking the shells of the sunflower seeds after the impurities are removed, separating the shells from the sunflower seeds to obtain the pure sunflower seeds; 2) roasting: roasting the sunflower seeds; 3) squeezing: squeezing the roasted sunflower seeds, squeezing oil drops under the pressure function, and separating out the sunflower seed meal obtain the crude oil; and 4) washing and dewatering: precipitating the crude oil, washing and drying the precipitated crude oil mixed with water to obtain the food grade sunflower seed oil. The pure physical squeezing technology adopts the pure sunflower seeds to physically squeeze the oil, the nutrients in the oil materials are extremely preserved in the finished product grease, and simultaneously, a chemical solvent is not utilized in the whole production process, and a problem of chemically polluting the oil product is avoided by not adding a chemical preservative and an antioxidant in the production process, the safety and the nutrition of the product is guaranteed radically and the yield of the refined oil products is increased.

Description

technical field [0001] The invention relates to a technology for preparing sunflower oil, in particular to a process for physically pressing sunflower oil pure kernels. Background technique [0002] Sunflower oil is a kind of edible oil with high nutritional value. It does not emit smoke at high temperature. It is suitable for frying, frying food and making western-style cakes, shortening and margarine. It contains a large amount of linoleic acid and other essential oils. Unsaturated fatty acids can promote the regeneration and growth of human cells, protect skin health, and reduce the accumulation of cholesterol in the blood, so it is a high-grade nutritional oil. It contains linoleic acid, which is an essential fatty acid for the human body, which is helpful for human development and physiological regulation, and also has a positive effect on preventing dry skin and scaly hypertrophy. Sunflower oil contains sterols, vitamins, linoleic acid and other substances that are be...

AI Technical Summary

Problems solved by technology

Because the traditional crude sunflower oil is produced from unhulled or partially shelled sunflower kernels, the quality is poor, so caustic soda refining must be carried out first, in addition to causing lye residue and soap residue, because alkali refining often uses waste In the cylinder, hot oil (70-80°C) combines with oxygen in the air to produce a small amount of inferior oxidized oil

At the same time, vitamin E will enter the soapstock during alkali refining, thereby reducing the health care effect of the oil

[0007] 2) A large amount of alkali-containing sewage will be produced during washing

[0008] 3) The oil yield of batch refining products is low

In the traditional process, oil-soap and oil-water are separated by sedimentation in large tanks, and the separated leftovers contain a lot of oil, resulting in waste of oil

[0009] 4) Batch refining environment is poor

Due to oil refining in open or semi-open cylinders, it is inevitable that there will be splashes of oil droplets, resulting in a dirty production environment in the workshop

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