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What is the national standard for edible rapeseed oil?
Introduction Rapeseed oil belongs to edible oil and is closely related to people's lives. When you buy rapeseed oil in the supermarket, you should see that there are grades on it. According to the relevant national standards, except olive oil and special oil, soybean oil, corn oil and peanut oil are generally divided into four grades according to their refining degree. The higher the grade, the higher the refining degree. Let's take a look at the national standard of edible rapeseed oil and the classification of rapeseed oil.

What is the national standard for edible rapeseed oil?

Table 1 rapeseed crude oil quality index

Table 2 Quality indexes of pressed rapeseed oil and leached rapeseed oil

According to the relevant national standards, rapeseed oil is generally divided into four grades according to its refining degree, except olive oil and special oil. The higher the grade, the higher the refining degree. Different grades of edible oil have different limited values of composition and quality, and their uses are also different.

Rapeseed oil is highly refined. After degumming, deacidification, decoloration, deodorization and other processes, it has the characteristics of tasteless, light color, high smoke point, less oil smoke and difficult solidification at low temperature. After refining, the content of harmful components in primary oil and secondary oil is low, such as glucosinolates in vegetable oil, but at the same time, many nutrients, such as carotene in soybean oil, are lost.

The refining degree of tertiary oil and quaternary oil is low, and only through simple degumming and deacidification procedures. Its color is dark, smoke point is low, cooking fume is large, and soybean oil even has soybean smell. Due to the low degree of refining, the impurities in the third and fourth grade edible oils are high, but at the same time, some carotene, chlorophyll, vitamin E and so on are retained.

No matter whether it is first-class oil or fourth-class oil, as long as it meets the national hygiene standards, it will not cause any harm to human health, and consumers can choose with confidence. Primary and secondary oils have high purity and low impurity content, which can be used for cooking at higher temperature, such as stir-frying, but not suitable for long-term frying; Third-and fourth-grade oils are not suitable for high-temperature heating, and can be used to make soups and stews, or to adjust stuffing. Consumers can choose according to their cooking needs and preferences.

Rapeseed oil grade 1 or 4? Rapeseed oil packaging has two kinds: squeezing and leaching. Select extrusion. The former is extracted by physical method, while the leaching is extracted by chemical method. The common quality grades of rapeseed oil packaging are first-class and third-class. The first-class is refined oil. Rapeseed oil raw materials on rapeseed oil packaging are divided into non-transgenic and transgenic. It is recommended to choose non-transgenic.

Summary: When buying oil, the first step is to squeeze non-GMO rapeseed oil, soybean oil and peanut oil. , followed by the third step.

The efficacy and function of rapeseed oil provide fatty acid rapeseed oil rich in fat, maintain body temperature and protect internal organs; Provide essential fatty acids; Promote the absorption of these fat-soluble vitamins; Increase satiety. The fertility rapeseed oil provide by that invention is rich in vitamin E, and the vitamin E can improve fertility, prevent miscarriage and improve blood circulation. The provide microelements are rich in cop, which is an indispensable micronutrient for human health and has an important influence on that development and function of internal organs such as blood, central nervous system and immune system, hair, skin and bone tissue, brain, liver and heart. People who have the problem of clearing liver and benefiting gallbladder, such as fatty liver, hepatitis, gallstones or cholecystitis, must choose rapeseed oil when cooking. Reducing blood fat and slimming rapeseed has a strong role in promoting fat decomposition. People with hyperlipidemia and obesity can lose weight by eating rapeseed oil. Moreover, rapeseed oil is the most digestible oil, and its digestibility in human body can reach 99%. People with hepatitis and cholecystitis can't eat more other oils, and it's no problem to eat rapeseed oil. Purging fire and relaxing bowels rapeseed oil is sweet, pungent and warm; It can moisten dryness, kill insects, disperse fire pills, reduce swelling and detoxify, and it is clinically used for ascaris lumbricoides and food-borne intestinal obstruction with good effect. Anti-inflammatory effect Using raw rapeseed oil to treat scald has a certain effect, because it can not only enter the blood, but also cool the blood and detoxify, and also enter the lung meridian, which can promote skin growth. Therefore, the ancients used it for external application to treat rubella, eczema and various skin itching. Eating eye-catching rapeseed oil regularly can prevent eye diseases in the elderly. Rapeseed oil can also help eyes resist the stimulation of strong light, which is very helpful to prevent amblyopia in children. Rapeseed oil for enriching blood and benefiting qi is used for blood deficiency, chlorosis, dizziness, palpitation, etc. It is a good product for enriching blood. It is often used with qi and blood tonics such as Radix Rehmanniae Preparata, Radix Angelicae Sinensis and Radix Astragali. Rapeseed oil for stopping bleeding and cooling blood is used for various bleeding syndromes. The hemostatic effect is good. It is especially suitable for patients with yin deficiency and blood deficiency bleeding. How to choose a good rapeseed oil depends on whether the color of rapeseed oil is pure, usually dark yellow or brown. Inferior rapeseed oil is generally reddish brown, brown or brown. Smell rapeseed oil with its fragrance. The taste of inferior rapeseed oil will be very weak, and there will even be some musty, burnt and licorice smells. Transparent high-quality rapeseed oil is clear and transparent. Inferior rapeseed oil will have some suspended matter and turbid liquid. The taste is actually very simple. We put the rapeseed oil we bought on our tongue, except for a little spicy taste, and there was no other odor, indicating that this rapeseed oil is relatively pure. If the taste is light, even sour, burnt and bitter, it is inferior rapeseed oil. Lu Hua pressed special fragrant rapeseed oil 5L non-GMO pressed edible oil ¥ 105.93 Business comments: 8.38 million+store Lu Hua self-operated flagship store >> Lu Hua flagship store >>1/9.9 online supermarket >> 109.9 arowanol rapeseed oil 5L/ Barrel of edible oil drips rapeseed oil fragrance in August and September. Sales volume: 4,000+store online supermarket >> COFCO Fulinmen non-genetically modified physical pressed pure rapeseed oil 5L¥99.9. Sales volume: 300+ store Fulinmen flagship store >>& gt& gt Recommended reading 0 1 What edible oil is delicious and healthy? How to choose household edible oil? Every time I visit the supermarket, the variety of edible oil is more and more dazzling, such as blended oil, peanut oil, corn oil and olive oil. .....

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