Grain and oil experts respond to rumors of cooking oil, don’t panic

In recent years, after some so-called "nutrition experts" exaggerated, many rumors about edible oil have been widely circulated among consumers.
For example, squeezed oil is healthier than leached oil, and blended oil is not nutritious, which makes people confused
.
At the recently held 25th Annual Academic Meeting of the Oil Branch of the Chinese Cereals and Oils Association, 12 domestic oil and fat experts, including the chief expert of the Chinese Cereals and Oils Association Wang Ruiyuan, had a serious discussion on these "oil processing and nutrition" aspects.
The false rumors issued clarifications, suggesting that consumers should treat the safety of edible oil with a scientific perspective, so as to avoid being misled by rumors and falling into unnecessary panic
.
"There is no difference between leaching and squeezing methods.
"In recent years, some "nutrition experts" have spread the theory of "inferior leaching oil" in a TV program, saying that the leaching process contains chemical residues and is inferior to the squeezing method
.
However, in the eyes of many authoritative experts in the grain and oil industry, "squeezed oil is healthier than leached oil" is an out-and-out rumor
.
In fact, as early as 2012, the domestic authoritative science and technology media GuoKe.
com and Baidu Baike released the "Top Ten Science and Technology Rumors".
"It is not safe to consume'extracted oil'" as one of the rumors
.
It is understood that in China, as in the world, there are generally two methods for preparing edible vegetable oil: pressing method and leaching method
.
The squeezing method is a method of squeezing oil from the oil by mechanical squeezing, and the leaching method is a method of extracting oil from the oil with an internationally recognized and universal food-grade solvent using the extraction principle of food engineering
.
The essence of this kind of extraction is a physical dissolution process, and no chemical reaction between oil and solvent occurs during the extraction process
.
"Whether it is leaching oil or pressing oil, as long as it meets China's edible oil quality standards and hygienic standards, it is high-quality and safe edible oil, and consumers can rest assured to eat
.
" At a special meeting held by the Oil Branch of the Chinese Cereals and Oils Association recently, Many authoritative experts in the domestic grain and oil industry have clarified that there is no difference between the leaching process and the pressing process
.
According to experts, the first consideration for which process to choose for oil production is the variety and processing characteristics of vegetable oils.
The two oil production processes have only the applicability of raw materials
.
The current international practice is: vegetable oils with higher oil content (such as peanuts and rapeseeds) are usually squeezed and then leached to produce oil; vegetable oils with lower oil content (such as soybeans, etc.
) are usually directly leached Process oil
.
In order to make full use of the oil and improve economic efficiency, the oil cake after pressing must continue to be leached to make oil
.
In fact, compared with the pressing process, the leaching process has the advantages of less residual oil in the meal, high oil yield, low processing cost, good production conditions, and full utilization of oil resources
.
There is also a saying that "No.
6 light gasoline and other chemical substances are inevitably left in the edible oil
.
" This has made many consumers fearful
.
In this regard, the experts at the annual meeting of the Grease Branch of the Chinese Cereals and Oils Association refuted: "It is alarmist to describe the'vegetable oil extraction solvent' used in the leaching process as'No.
6 light gasoline' and analogy with ordinary gasoline.

.
" 　　experts point out that the leaching process using a hydrocarbon solvent hexane as the main component, has said," No.
6 solvent oil ", is amended to" vegetable oil extraction solvent ", it is the country dedicated exclusively to arrange for the production of solvent oil processing , Which is fundamentally different from ordinary gasoline with complex composition and high boiling point
.
This extraction solvent must be food-grade, that is, after heavy metal removal treatment, the residual amount of harmful substances such as lead and arsenic is less than 10μg/kg (one in a billion).
Therefore, use a qualified solvent for leaching, and The finished vegetable oil, which is removed to the greatest extent according to national standards during the refining process, is absolutely safe
.
　　"The blended oil is more nutritious than a single vegetable oil" in　　response to the statement that "the blended oils are not very good, but are basically refined.
" The grain and oil experts at the meeting believed that "total denial of blended oils shows that there is a lack of scientific understanding of refined oils, and it also shows that There is a great misunderstanding in the understanding of blended oil
.
"Blend oil, also known as blended oil, is an edible oil
prepared by blending two or more refined oils in a certain proportion according to the nutritional balance or flavor requirements .
Through scientific blending, the nutrition and flavor of the edible oil can be improved.
It is more suitable for daily cooking, such as frying, frying, frying, frying or cold dressing
.
The main raw material oil is refined soybean oil, rapeseed oil, peanut oil, sunflower oil, cottonseed oil, etc.
, with a certain amount of flavor oil.
Or refined rice oil, corn oil, camellia seed oil, safflower seed oil, wheat germ oil and other special oils
.
　　Experts say that whether it is pressed oil or leached oil, it needs to be refined to prevent harm and profit.
The degree of refining of the oil is determined by the quality of the crude oil and the use of the refined oil, and it is not the same
.
"The refined oil contains a variety of nutrients.
Therefore, "the blended oil is not good" and "no nutrition" are There is no scientific basis
.
"The Dietary Guidelines for Chinese Residents (2016) issued by the National Health and Family Planning Commission and the 2015 version of the US Dietary Guidelines emphasize the need for food diversity.
This is no exception for edible oils, which means that all kinds of edible oils must be eaten.
, The quality should be diverse
.
Generally speaking, the caloric value of various oils is similar, but the types and contents of nutrients are different
.
Blended oil is a scientific formula of two or more oils, not only composed of fatty acids The balance is better than that of a single vegetable oil, and it also contains a richer variety of nutrients
.
Therefore, in the reasonable combination of nutrients, blended oil has more advantages than single vegetable oil
.
　　In addition, in the discussion about "genetically modified oil", experts attending the meeting It also gave an explanation: taking "genetically modified oil" as an example, because the genetically modified ingredients in oils are based on protein as a carrier and are not combined with fats, there are no genetically modified ingredients in the edible oil produced from genetically modified
oils.
Produced from genetically modified oils.
Edible oil is safe, and consumers can rest assured to eat
.
Experts say that China's oil processing industry and oil market are generally healthy and upbeat.

.
The edible oil products on the market are safe as long as they meet the edible oil quality standards and hygiene standards of our country, and consumers can eat them with confidence
.
At the same time, experts advise consumers to treat the safety of edible oils with a scientific perspective to avoid being misled by rumors and falling into unnecessary panic
.