What is the difference between different cooking oils?

How to say it, let me talk about it in detail, 1. Peanut oil. It is an oil extracted from peanut kernels, and in some places it is called raw oil. It is generally light yellow or orange-yellow, the color is bright and transparent, the peanut oil foam is white, and the flower bubble is large.

It has the inherent smell and taste of peanut oil. 2. Rapeseed oil. It is an oil extracted from rapeseed, which is commonly called rapeseed oil, and generally lettuce oil is golden yellow, and the oil foam is yellow and slightly green, and the flower bubble is colored when it is sunny.

It has the inherent smell of rapeseed oil and tastes spicy. 3. Soybean oil. It is an oil extracted from soybeans, also known as soybean oil.

It is generally yellow or brown in color. The soybean oil foam is white, the flower bubbles are complete, the beany smell is large, and the mouth tastes astringent. 4. Cottonseed oil.

It is an oil extracted from cottonseed. It is generally orange-yellow or brown in color, and the foam is yellow. Small flower bubbles, tasteless in the mouth.

5. Sunflower oil. It is an oil extracted from sunflower seeds. The oil is clear, pale yellow or yellow, fragrant and pure.

As a dietitian in charge, I want to tell you that various cooking oils are really different. Macroscopically it's almost the same, just like humans, who look like they all have a nose and two eyes; But microscopically it's different, you look at the Chinese, Americans, French, Japanese, carefully observe each has its own characteristics. Edible oil is also a truth, each type of edible oil has different nutritional characteristics.

For example, olive oil and camellia seed oil, which have been widely accepted, have a relatively high oleic acid content, and there is a lot of evidence that oleic acid is beneficial to cardiovascular and cerebrovascular health; Now very popular flaxseed oil, perilla oil, their -linolenic acid content is very high, is a kind of essential fatty acids, and modern people intake is relatively small, currently advocate to increase the intake of this type of oil; There are also traditional soybean oil, peanut oil, sunflower oil, corn oil and other linolenic acid content is relatively high, which is a traditional bulk oil and is also indispensable for life. It should be said that these oils have their own characteristics and are all very important.

Our family usually comes to stir-fry vegetables with their own home-cooked lard, vegetable oil, and peanut oil. I think lard is more fragrant in stir-frying, but animal oil is easy to solidify in winter, vegetable oil is moistened a little, and the taste is not as fragrant as lard, but it is healthier. It also depends on what kind of oil is used for cooking.

There is also the blended oil on the market, this kind of oil is mixed together in proportion, which is of course better for the human body, or more balanced can be absorbed by the human body. They are made by blending several high-grade cooking oils, among which soybean oil and rapeseed oil are the mainstay, and a small amount of peanut oil is added to increase the aroma of blended oil. There are also blended oils based on sunflower oil and cottonseed oil. The nutritional value of blended oils varies depending on the raw material, but they are rich in unsaturated fatty acids and vitamin E.

The blended oil has a good flavor and stability, **reasonable, and is most suitable for daily stir-frying.

Edible oil is mainly animal oil, vegetable oil, generally we choose vegetable oil, vegetable oil contains high unsaturated fatty acids. To eat oil, we should eat different kinds of vegetable oil. In vegetable oil, it is recommended that the elderly, pregnant women, and children should eat more tea oil, which has higher oleic acid than ordinary vegetable oil.

It is rich in unsaturated essential fatty acids such as oleic acid, linoleic acid, and linolenic acid, which are essential for the human body. Camellia oil can reduce the burden on the digestive system, promote human metabolism, maintain the normal function of the cardiovascular system of mother and child, and fully supplement the high-quality oil and nutrition required by mother and child during pregnancy.

Peanut oil contains cerebropholipids, lecithin, and choline. Soybean oil is rich in phospholipids and vitamin E, which have the effects of preventing tumors, lowering blood lipids and lowering cholesterol. It contains a large amount of unsaturated fatty acids, which have the ability to prevent bile solids on the human body.

Olive oil helps our blood circulation, beauty, cooking. Vegetable oil contains minerals such as vitamin E, K, calcium, iron, phosphorus, potassium, higher fatty acids, etc. Walnut oilWalnut oil is rich in phospholipids, which are essential nutrients for the brain, and walnut oil also contains antioxidants such as squalene polyphenols.

The biggest difference between edible oils should be the raw materials and production process. Each oil contains different fatty acids and is suitable for cooking.

The nutritional value of different edible oils is slightly different, but they are all rich in unsaturated fatty acids, but the ratio of oleic acid, linoleic acid and linolenic acid is different. Most vegetable oils are also rich in vitamin E and have a certain amount of vitamin K.

At present, there are many types of edible oil, and the main ones commonly used by the public are: soybean oil, peanut oil, sunflower oil, rapeseed oil, etc., and some other mixed oils are also more popular. These types of oil, except for the slightly strange taste of rapeseed oil, in terms of their nutritional value, there is basically not much difference.

As for cottonseed oil, it has not been consumed in many places for many years, and it has been heard that cottonseed oil contains certain toxins, which have an impact on people's health.

Different cooking oils have different nutrients, and the taste of fried vegetables is different. Our hometown is the northernmost county in Shanxi, the county has no resources, the cultivated land is basically hillside, and the grain output is low, so it is a state-level poverty-stricken county. Nine years of drought and slope land, planting rapeseed is a good choice for farmers.

Canola oil has become our main edible oil. Now I'm used to rapeseed oil, and I'm not used to eating anything else.

The nutrients of each edible oil are different, mainly depending on personal needs, camellia oil helps to lower blood pressure, prevent cardiovascular and cerebrovascular, my family is relatively fat, generally eat camellia oil.

Edible oil is oil that can be eaten, such as peanut oil, sesame oil, soybean oil, rapeseed oil, sunflower oil, olive oil, flaxseed oil, flax oil, lard, butter, mutton fat, and so on.

Edible oil is usually added when cooking can be eaten oil, divided into animal oil and vegetable oil common edible oil is mostly vegetable oil, including rapeseed oil, peanut oil, olive oil, flaxseed oil, hemp oil, corn oil, soybean oil, camellia oil, palm oil and so on.

There are also some families that use animal oil, generally using lard.

Good cooking oil can not only make the dish more fragrant, but also good for health.

Common answers include peanut oil, olive oil, rapeseed oil, corn oil, sesame oil, cottonseed oil, rice oil, sunflower oil, flaxseed oil, safflower oil, soybean oil, palm oil, tea seed oil, etc.

Vegetable oil is a compound formed by the combination of unsaturated fatty acids and glycerol, which is widely distributed in nature and is obtained from the fruits, seeds and germs of plants.

Edible oil belongs to the vegetable blended oil.

Edible oil is used in the process of making food, animal and vegetable oils, and most of the oils that are often eaten are vegetable oils, including rapeseed oil, peanut oil, hemp oil, corn oil, olive oil, camellia oil, palm oil, sunflower oil, soybean oil, sesame oil, flaxseed oil, grape seed oil, walnut oil, peony seed oil, etc.

Edible oil has the effect of heat transfer, can make the dish show the characteristics of fresh and crispy, in the cooking process, the use of oil as a heat transfer medium is widely used, due to the higher ignition point of oil, after heating can speed up the cooking speed, shorten the cooking time of food, so that the raw materials remain fresh and tender.

First, the nature is different.

1. Edible oil properties: animal or vegetable oils and fats used in the process of making food.

2. Edible blended oil properties: according to the needs of use, the edible oil made by mixing more than two refined oils and fats (except flavor oil) in proportion.

Second, the characteristics are different.

1. Characteristics of edible oil: due to the raw materials, processing technology and quality, ordinary edible oil is mainly vegetable oil, including rapeseed oil, peanut oil, sesame oil, corn oil, olive oil, camellia oil, palm oil, sunflower oil, soybean oil, sesame oil, linseed oil (sesame oil), grape seed oil, walnut oil, peony seed oil, etc.

2. Characteristics of edible blended oil: refined soybean oil, rapeseed oil, peanut oil, sunflower oil, cottonseed oil, etc. are generally selected as the main raw materials, and special oil esters such as refined rice bran oil, corn germ oil, camellia seed oil, safflower seed oil, and wheat germ oil are selected. The processing technology is to select more than two kinds of refined oil esters according to the need, and then deacidify, decolorize, deodorize, and blend to form a blended oil.

Answer: Vegetable oil is a compound formed by the combination of unsaturated fatty acids and glycerol, which is widely distributed in nature and is an oil obtained from the fruits, seeds, and germs of plants. There are many types of it, such as peanut oil, soybean oil, flax oil, castor oil, rapeseed oil, etc. The processing process is:

The oil-rich plant kernels are used as raw materials, and the crude oil is obtained by mechanical pressing or solvent leaching after pretreatment such as cleaning and impurities, hulling, crushing, softening, rolling, extrusion, etc., and then extracted by mechanical pressing or solvent leaching, and then obtained after refining.

Blended oil, it is according to the needs of use, the two or more refined oils and fats in proportion to make edible oil, generally soybean oil, rapeseed oil, peanut oil, sunflower oil, cottonseed oil and other raw materials as the main raw materials, but also with refined rice bran oil, corn germ oil, camellia seed oil, wheat germ oil and other special oil esters. The processing process is: select more than two refined oil esters according to the needs, and then deacidify, decolorize, deodorize, and blend into blended oil.

There are many kinds of edible oils, and these points must be seen clearly.

The essential nutrients we get from edible oil are fatty acids, of course, there are vitamin E or something, and the most important fatty acids are two, W-3 and W-6, at present, our country's diet is not lacking in W-6, and even eat a little too much, so what needs to be increased is W-3, I recommend everyone to use canola oil and flaxseed oil, these two are enough.

If the economic conditions are possible, the tea oil is directly selected, and it must be pure tea oil that is physically pressed at low temperature, not leached, and not blended. Because camellia oil has high nutritional value, high smoke point, and is healthy.

When buying cooking oil, it doesn't matter what brand! As long as there are these 3 words on the bottle, they are all high-quality and good oils.

1.Smell the smell.

When buying edible oil, don't blindly believe in advertisements or listen to the sales pitch of supermarket staff, so you are likely to buy inferior cooking oil. Before buying, you should smell it, put a drop of oil in the palm of your hand, then rub your hands together, rub it hot, and smell it again. It can be said that each oil has its own unique smell, if *** then each smell will not make us disgusted or uncomfortable, at this time you can rest assured to buy.

However, if the quality of the oil is not good or the gutter oil is not good, the smell is usually very strange and unpleasant, which means that it is likely to add some bad additives or be impure in refining.

2.Look at the layering.

When buying edible oil, special attention should be paid to the stratification of the edible oil when it is still in place. Usually if the quality of the oil should be one and the same, there is almost no obvious stratification. However, if the oil is found to be stratified, it is likely to indicate that it is adulterated mixed oil.

In addition, there may be gutter oil, because there are more impurities in it, so the oil will be layered up and down in the static situation.

At the same time, we should also pay attention to the transparency of the oil, but in general, the higher the quality of the edible oil, the higher the transparency will be. In addition to this, there will be no suspension, sedimentation and over-viscosity, if the opposite is true, it means that there is a problem with the oil.

3.Look at the packaging.

When buying edible oil, special attention should be paid to the packaging, and experts suggest that consumers should try to choose products from big brands when buying. For those small packages and bulk edible oil, you should try not to buy, even if you want to buy, you should pay attention to the outer packaging, especially to carefully check the shelf life and factory date and quality standard number. If the information on the label is incomplete, you should not buy it, so as not to be counterfeit and inferior oil, or gutter oil.

In addition to sesame oil, the lighter the color of the same edible oil, the better the quality of the edible oil, the higher the transparency. Therefore, when buying edible oil, it is necessary to check its purity, and if it is cloudy, it is best not to buy it.

Due to the raw materials, processing technology and quality, the common edible oil is mostly vegetable oil, including rapeseed oil, peanut oil, hemp oil, corn oil, olive oil, camellia oil, palm oil, sunflower oil, soybean oil, sesame oil, flaxseed oil (flax oil), grape seed oil, walnut oil, peony seed oil, etc., edible oil is liquid at room temperature.

Olive oil is rich in unsaturated fatty acids, minerals and vitamins; Walnut oil is rich in phospholipids, which are essential nutrients for the brain, which are beneficial for promoting the intellectual development of babies and maintaining the normal functioning of the nervous system.

Camellia oil is rich in natural vitamin E, squalene, tea polyphenols, vitamin E and a variety of enzymes together form an antioxidant system, protect human cells from free radical damage, and improve the body's immunity. Soybean oil is relatively low in monounsaturated fatty acids, about 20%.