A scientific look at diester oils

Longevity flower diglyceride edible oil came out, Jiusan launched soy diester edible cooking oil.
.
.
In recent years, compared with ordinary edible oil, healthy diglyceride edible oil (hereinafter referred to as "diester oil") has become a new track
for major manufacturers to obtain future competitive advantages.
What exactly is a diester oil? Will consumers accept it?

Companies have launched diester oils

With the continuous upgrading of national health needs, oil and fat companies continue to explore innovative ways to bring consumers more healthy oil choices
.
Driven by the idea of a low-fat diet, more and more companies are introducing diester oils
.

In some supermarkets in Beijing, it is difficult to see diester oil
in the market.
However, there are many diester oil products and brands
on online sales platforms.
Diester oil related products can be found on Taobao; In Jingdong Mall to search for "diglycerides edible oil" as the keyword, you can search for two pages of related products, involving Shanbainian, Xiqiaoshan, Kangzhibao, Nanshan and other brands, its packaging specifications are mostly 500 ml bottles, the price ranges from 100-800 yuan per bottle
.

In addition to common oils such as peanut oil, corn oil, soybean oil, and olive oil, these brands of diester oil also have niche oils such as camellia oil and flaxseed oil, and most claim that the product is "a new generation of healthy edible oil, and can be metabolized quickly, and fat is not easy to accumulate"
.
Rushan Hundred Years claims that "half the fat is as fragrant as stir-frying"; Xiqiao Mountain claims that "edible oil more suitable for Chinese parents" and "good helper for fat reduction in middle-aged and elderly people"
.

Consuming diester oil has many benefits

What exactly is a diester oil? In fact, as early as 2009, the former Ministry of Health approved diglyceride oil as a new food raw material, marking that diglyceride oil can enter the public vision
as a health food.
According to an announcement issued by the National Health Commission in 2021, the production process of diester oil is made by using soybean oil, rapeseed oil, etc.
as raw materials, using lipase preparations, water, glycerin, etc.
as the main auxiliary materials, catalyzed by lipase, and made by distillation separation, decolorization, deodorization and other processes
.
The content of diglycerides (DAG) exceeds 40%, the amount of use is ≤30 g/day, and the scope of use does not include infant food
.

Jiang Xinzheng, former senior engineer of Xi'an Oil Science Research and Design Institute of the State Grain Reserve Administration, said that at present, the biological enzymatic method is used to prepare diester oil in China, and South China University of Technology has a long time to study diester oil, and has many patents, and has achieved industrialization
.

Wang Yong, vice president of the Oil and Fat Branch of the Chinese Cereals and Oils Society, said that at present, China has successfully developed biological enzymatic preparation of diester oil, breaking the monopoly of foreign companies on diester oil and biological enzymes, and has a number of related patented technologies, which is milder and safer
than foreign chemical methods.

Regarding the efficacy of diglycerides, Professor Niu Wenyi of the School of Public Health of Peking University Health Science Center said that diglycerides are burning fats, which do not accumulate fat in the body, and can also burn excess body fat during metabolism and reduce body fat and internal organs
.

Jin Qingzhe, a professor at Jiangnan University, said that the main components of edible oil are 98% triglycerides and 2% diglycerides
.
Dietary intake of triglycerides accumulates in the body to form fat
.
The diglycerides lack a fatty acid in the structure, and after the digestion and absorption of the small intestinal mucosal cells, the diglycerides cannot form a triglyceride structure and enter the blood, and they cannot become blood lipids (blood lipids are the general term for triglycerides and lipids in plasma), but are metabolized by mitochondria for energy, will not accumulate fat in the body, but also burn excess fat
in the body.

Wang Yong said that it is difficult to change residents' oil habits, but it is more scientific and feasible
to use diester oil to replace ordinary cooking oil to suppress obesity and prevent chronic diseases.

(Meng Gang)

China Food News(November 17, 2022, Version 06)

(Responsible editor: Zhu Meiqiao)