Video loading...
#Media People Weekly #This short video has aroused the attention of many netizens. Netizen "big sister" said, "How did the apples we ate when we were children have no wax, they are all caused by drugs, harmful"; netizens "cute" said, "washed with salt"; netizens "Mark" said, "In this way, don't eat apples in the future, it is not good for your health"... So, is there any wax on the surface of the apple?
According to Yang Xiangzheng, director of the Institute of Storage and Preservation Technology of Jinan Fruit Research Institute of the All-China Supply and Marketing Cooperative, apples secrete a wax layer during their own growth process, wrapped in the surface of apples, commonly known as "fruit wax". This layer of "fruit wax" is a naturally formed plant protective layer, which can reduce the moisture loss of the peel and slow down the natural decay. A natural protective layer like this can also be found on the surface of peels such as pears and grapes.
Yang Jie, director of the Industry Department of the National Apple Engineering Technology Research Center, said, "This 'fruit wax' produced by the apple itself is edible and has no harm to the human body." ”
However, some netizens questioned that the wax on the apple in the video did not seem to be naturally secreted, but was artificially typed. So, does apple storage have artificial waxing phenomenon?
Yang Jie told Xiaobian that waxing is actually an important fruit preservation technology, which has not appeared in recent years, and the United States is the first country to wax fruits. In 1922, Ernest Brogden, the founder of Brogdecks, was the first to patent commercial fruit waxing in the United States. Since then, the custom of waxing commercial fruits has been used to this day.
Apples because it is a fresh edible agricultural product, after ripe picking, in the warehouse for a period of time, or transported to the wholesale market, the skin is easy to wrinkle for too long, and waxing in the skin can prevent water loss, solve the problem of skin shrinkage, and extend the preservation time of apples. In addition, after waxing, the surface of the apple is bright and fresh, and the selling price is high. The national standard stipulates that when waxing apples, edible wax should be used, and commonly used edible waxes include morpholine fatty acid salts (also known as fruit wax), carnauba wax, etc., which can play a role in preserving the quality, preservation, glazing, and preventing water evaporation of apples. Edible wax is a food additive that can be used for the surface treatment of apples and is not harmful to the human body. However, there are also some unscrupulous merchants who use cheap industrial wax to process apples in violation of the law in order to reduce costs. Industrial wax components are complex, may contain lead, mercury and other heavy metals, excessive intake will be harmful to human health.
Yang Xiangzheng told the editor that in fact, it is difficult to distinguish between edible wax and industrial wax by the naked eye alone. However, when you buy apples, you can wipe the surface of the apple with wet paper towels, edible wax is colorless, if the paper towel leaves a faint red, it is likely to be industrial wax. Yang Xiangzheng also particularly emphasized that whether internationally or domestically, the illegal use of industrial wax to treat apples is a minor offense, a heavy crime, and is severely punished by the law!
Yang Jie said, "The earliest domestic waxing of apples is the United States, and we must recall to one or two decades ago, when the cold chain storage was not developed, in order to export, easy to transport long distances, we will wax the flower cow apple, Red Star apple and so on."
Yang Xiangzheng pointed out that with the domestic cold chain logistics, cold chain warehousing facilities are more and more developed, the number is increasing, through accurate temperature regulation, Apple has achieved annual supply. If the "original" waxing treatment is used to extend the transportation and supply of apples, it is time-consuming and labor-intensive, and it is not economically cost-effective at all.
In addition, at present, more than 70% of the varieties planted in our country are Fuji apples, Fuji apples themselves are resistant to storage and transportation, if you wax Fuji apples, it is easy to cause stinging and crushing, the commerciality will be greatly reduced, and the selling price will be greatly reduced. "In China, waxing has long been a 'thing of the past', and our own apples can be eaten with confidence," Yang Jie said confidently.
However, Yang Jie is still worried that if the short video on the Internet is over-disseminated, it is easy to have a negative impact on the current domestic Apple sales. Therefore, he advocates that the majority of netizens polish their eyes, do not pay too much attention to this kind of network hype, do not spread rumors, do not believe in rumors, and actively spread positive energy!