Vegetable fats - an important food product supplying the human body with vitamin E, phosphatides and other important for the metabolism of nutrients responsible for the proper functioning of the immune system, hormone synthesis, blood vessel elasticity and resistance to harmful radiation.On how the entire contents of trace elements in the oil consumed, and depends on its value.
word "refining" means the removal of impurities.The question arises of whether or not to remove the product from its natural constituents, and if so, which ones.In other words, the difference between sunflower oil refined from a very similar product sold in the same PET bottles, but called purified?Type of packaging and product color nothing to say.To understand the difference, you need at least briefly understand the technology in the fat plant - enterprises, which make and bottled sunflower oil.Production is carried out its methods developed for a long time.
A simple, clean and old is considered a method of producing oil by direct extraction.Sunflower seeds are loaded into the press, the screw piston is driven, commodity contracts, and this is the result - the product drip.As the waste remains a very valuable product, containing nucleoli pulp, peel and, again, the oil, which we usually called lean.Before, during and after the war, ate cake, now on her fish.
direct extraction method is very good, but has a number of drawbacks.Firstly, it is uneconomical, the yield is about 30% by weight of the loaded raw materials, and then in the best case.Display content of vegetable fats in the seed oil content, and is called depends on the class and the weather conditions at which the matured sunflower.Secondly, the press is not only raw seeds, but also fried, i.e. subjected to a heat treatment at a temperature of about 110 degrees, and this leads to the fact that such Sunflower oil contains not very useful minerals from which it is still necessary to clean the.Third, that the shelf life of hot, more cold extraction efficiency is very limited, which does not like to trade.Rid unrefined sunflower oil from unwanted components can be relatively simple mechanical means - by settling, centrifuging and filtration.It is also refining, but when it is carrying out the content of nutrients and vitamins is not reduced.
next stage of purification is performed using hot water.Protein components, causing premature spoilage, are deposited, the product becomes lighter and transparent.This too unrefined sunflower oil.The benefits of its use is somewhat reduced as compared to the raw product.Hydration removes not only harmful but also some useful trace elements, but on the whole this treatment provides the optimal ratio of the presentation, shelf life, cost and nutritional value.
Modern intensive production methods do not allow the loss of valuable products contained in the waste.By using organic solvents mainly sverhochischennogo gasoline by extraction of fat which remains after a meal.Yield reaches 99%.If Sunflower oil has its own smell, and even, one might say, the aroma, then cleared of all impurities vegetable fat, very transparent and beautiful, almost completely devoid of taste and deodorized.
So, sunflower oil sold three kinds:
- refined;
- refined deodorized;
- Refined nedezodorirovannoe.
Each of them is used for its intended purpose.The first - for salads, the second frying, the third - the universal.
