Sunflower oil is produced by pressing peeled sunflower seeds. Depending on the scale of the enterprise, the oil is produced by cold or hot pressing.
The hot pressing method involves heating the raw material to 100 C, so the final product has a pronounced smell of roasted seeds.
The cold pressing method excludes heating. The oil obtained by this method has a transparent color and a slight smell of raw seeds.
Major manufacturers produce oils by hot pressing.
Sunflower oil is widely used in the food, paint and varnish industries, in soap making and cosmetology.
Rapeseed oil is obtained from peeled and unpeeled rapeseeds. The oil made from the peeled seeds by cold pressing is of high quality.
On an industrial scale, oil is obtained by hot pressing.
Rapeseed oil is used in the food, textile, leather industries, in soap making and in the production of drying oil.
It is a waste product in the production of vegetable oils. Meal is obtained by extraction with organic solvents when squeezing oil from seeds. The solvents are later removed by steam treatment.
Due to the crumbly structure, it can be stored for a long time.
With a low fat content (only 0.5 - 3%), the meal has a high concentration of trace elements and protein, which makes it a valuable product in agriculture. Meal is used for feeding fish, breeding domestic animals, poultry, both in pure form and as an additive to feed.
POTASSIUM and NITROGEN FERTILISERS
Complex potassium-nitrogen fertilizers are used to provide agricultural crops with important nutrients. Fertilizers ensure the development and rapid growth of plants, even on soils with a low nutrient content.
Potassium accelerates photosynthesis, therefore it is important for flowering plants. With a deficiency of potassium, weak flowering and ovary formation are observed.
Nitrogen is a building material for the root system of plants. An insufficient amount of nitrogen leads to the death of crops at the germination stage.