What is refined vegetable oil and what is refined vegetable oil?

There is no precise definition of refined vegetable oil, and there is no corresponding industry standard. The so-called refined vegetable oil is a general term that refers to processed vegetable oil, refer to the wikiBrief refinement consists of one or more of the following processes:

Distillation, in which the solvent introduced into the extraction process is evaporated by heating.

Refined vegetable oil refers to vegetable oil processed through multiple processes such as distillation, degumming, neutralization, dewaxing, deodorization, and preservative. Distillation is the evaporation of solvents introduced during the extraction process by heating. Degumming is to let hot water rinse the grease thoroughly, stir it well and let it stand to precipitate gums and proteins.

Neutralization is the treatment of oil with sodium hydroxide or sodium carbonate to remove free fatty acids, phospholipids, pigments and waxes. Dewaxing is to improve the transparency of grease, reduce the temperature, and remove precipitated solids. Preservatives are added to help the oil and fat remain stable.

Distillation, in which the solvent introduced into the extraction process is evaporated by heating.

Degum, rinse the grease with hot water (80°C), stir well and let it stand to precipitate gum and protein.

Neutralization, or deoxygenation, treats the oil with sodium hydroxide or sodium carbonate to remove free fatty acids, phospholipids, pigments and waxes.

Bleaching, removal of unsightly color, removal of undesirable color with diatomaceous earth, activated carbon, activated clay.

Dewaxing, or antifreeze, improves the transparency of greases, lowers temperatures, and removes precipitated solids.

Deodorization, the evaporation of unstable compounds that may cause abnormal odor and taste through high-temperature and high-pressure steam.

Preservatives, preservatives are added to help the oil and fat remain stable.

In addition, filtration, a non-chemical process that screens out large particles of impurities, can also be considered a refining step, although it does not alter the state of the oil.

Harmful.

The natural properties of refined vegetable oils have been altered, not only are they not suitable for aromatic use, but they are also harmful to human health when used in large quantities for a long time.

In order to meet the needs of industrial manufacturing, the production process of refined vegetable oil to obtain more oil extraction capacity is usually inseparable from high temperature and the use of chemical additives, thus losing the natural properties of vegetable oil. The natural properties of refined vegetable oils have been altered, not only are they not suitable for aromatic use, but they are also harmful to human health when used in large quantities for a long time. These vegetable oils may also be bleached, deodorized, and artificially colored, leaving them completely lifeless.

Refined vegetable oils are not necessarily trans fatty acids

Refined vegetable oil refers to processed vegetable oil. However, refined vegetable oil is not equal to trans fatty acids, and the cream cakes, biscuits, shortbread, fried dry noodles, bagels, potato chips, chocolate, salad dressing, burgers, french fries, chicken nuggets, popcorn and other delicacies that everyone usually likes to eat contain refined vegetable oil.

Some manufacturers will clearly indicate on the packaging that refined vegetable oil is used, while many manufacturers do not indicate the ingredients at all. Some refined vegetable oils contain trans fatty acids and some do not, depending on the refining process, it is known that trans fatty acids are very bad for the human body, and consumers should be concerned about the total content of trans fatty acids in food products.

Hazards of refined vegetable oils

Long-term consumption of large amounts of refined vegetable oil will lead to the accumulation of fat in the body, causing the symptoms of obesity and some people will experience symptoms of dementia.

In this case, we should also eat more healthy food, which can avoid diseases in the body, and in daily life, we must eat less high-fat and high-calorie foods and eat more healthy vegetables and fruits.

Refined vegetable oil is a large range, and salad oil for daily consumption also falls under the category of refined vegetable oil. Refined vegetable oil may contain trans fatty acids, but it is not inevitable, depending on the refining process, process hydrogenation or high temperature may produce trans fatty acids.

The so-called hydrogenated vegetable oil is an oil rich in trans fatty acids, and the frequent use of this oil will cause high blood lipids, coronary heart disease and other risks.