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On August 17, the Consumer Council of Hong Kong held a press conference to announce the recent test results of crispy snack samples such as infant formula, potato chips, and shrimp crackers
.
.
Among them, 15 milk powder samples all contained the contaminant chloropropylene glycol, 9 had carcinogenic glycidol, 9 samples were tested to contain glycidyl esters (GE); and 77 crispy snack samples, there were 70 models contain carcinogenic acrylamide
.
.
After reading this news, the mothers anxiously looked at the baby's milk powder can, and the house star silently put down the potato chips in his hand.
Can these be eaten?
Can these be eaten?
What the hell are these carcinogens? Let's first understand the detected harmful substances: 1.
Carcinogens
Carcinogens
Glycidyl alcohol, also called "glycidol": mainly used as a stabilizer for natural oils and vinyl polymers, demulsifiers, dyeing layering agents, and also used for surface coatings, chemical synthesis, fungicides, etc.
;
;
Acrylamide is produced by "reducing sugars" (such as glucose, fructose, etc.
) and certain amino acids (mainly aspartic acid) during frying, baking and roasting
.
) and certain amino acids (mainly aspartic acid) during frying, baking and roasting
.
2.
Pollutants Chloropropanol is a type of food pollutants, especially in soy sauce, vinegar, chicken essence and other condiments.
The pollution level is relatively high.
In recent years, with the development of detection technology, it has gradually attracted the attention of countries all over the world.
Among them, chlorine Propylene glycol (3-MCPD) has the highest appearance rate
.
Pollutants Chloropropanol is a type of food pollutants, especially in soy sauce, vinegar, chicken essence and other condiments.
The pollution level is relatively high.
In recent years, with the development of detection technology, it has gradually attracted the attention of countries all over the world.
Among them, chlorine Propylene glycol (3-MCPD) has the highest appearance rate
.
Why are these carcinogens in snacks?
In fact, they are not artificially added.
The reason why they are contained in milk powder and snacks is related to fats, because they are the products of the fat processing process
.
The reason why they are contained in milk powder and snacks is related to fats, because they are the products of the fat processing process
.
Large amounts of refined vegetable oil are usually used in the production of shrimp crackers and potato chips
.
Vegetable oil usually undergoes high temperature treatment in the refining process, and high temperature will generate some by-products.
Glycidyl ester and trichloropropanediol are the two most common
.
.
Vegetable oil usually undergoes high temperature treatment in the refining process, and high temperature will generate some by-products.
Glycidyl ester and trichloropropanediol are the two most common
.
Therefore, as long as vegetable oil is used, more or less chloropropylene glycol and glycidyl alcohol will be brought into the food, not only in snacks, but also in the deep-fried dough sticks we eat
.
.
The production of acrylamide is related to the "Maillard reaction".
This term is relatively unfamiliar to everyone, but in fact, it can be seen everywhere in our lives, such as barbecue and toast.
It is so fragrant and attractive in color.
It is Maillard.
The role of reaction
.
This term is relatively unfamiliar to everyone, but in fact, it can be seen everywhere in our lives, such as barbecue and toast.
It is so fragrant and attractive in color.
It is Maillard.
The role of reaction
.
There are basically carbohydrates and proteins in food, and acrylamide is inevitably produced during the heating process
.
Many foods we usually eat, such as barbecues, fried dough sticks, and oil cakes contain propylene
.
Many foods we usually eat, such as barbecues, fried dough sticks, and oil cakes contain propylene
The figure of amide
.
Shrimp Chips and Potato Chips are mainly made from starchy foods, which are baked and will inevitably be included
.
.
Shrimp Chips and Potato Chips are mainly made from starchy foods, which are baked and will inevitably be included
.
How harmful are these substances to the human body?
Animal experiments have shown that acrylamide has certain carcinogenicity; and can cause nervous system damage
.
.
However, there is not enough evidence to show that it causes cancer in humans.
Because of this, the World Health Organization (WHO) assessed it as a category 2A carcinogen, meaning a potential carcinogen
.
Because of this, the World Health Organization (WHO) assessed it as a category 2A carcinogen, meaning a potential carcinogen
.
Due to different eating habits, the data of each country are also different, but overall we don't eat much acrylamide
.
The World Health Organization estimates that the average level is 20-30 micrograms per person per day.
.
The World Health Organization estimates that the average level is 20-30 micrograms per person per day.
The average intake is about 18 micrograms (based on 60 kg body weight).
This intake is generally safe, so don't worry too much
.
This intake is generally safe, so don't worry too much
.
Glycidol is found in a variety of foods.
The European Food Safety Agency (EFSA) assesses that its total intake is high, and most people face potential health risks
.
Especially infant formula, because it is the only food for infants, the risks posed by glycidol are "especially worthy of attention
.
"
The European Food Safety Agency (EFSA) assesses that its total intake is high, and most people face potential health risks
.
Especially infant formula, because it is the only food for infants, the risks posed by glycidol are "especially worthy of attention
.
"
However, like acrylamide, glycidyl alcohol is only a 2A carcinogen, and there is not enough evidence to show that it can cause cancer.
In general, you don't need to worry too much
.
In general, you don't need to worry too much
.
The contaminant chloropropanediol (3-MCPD) was found in food more than 30 years ago
.
.
2001 JECFA (FAO and World Health
The 57th meeting of the Joint Expert Committee on Food Additives under the organization, tentatively set the 3-MCPD daily dietary tolerance as per kilogram of body per day.
The weight does not exceed 2 micrograms, as long as it does not exceed this amount is safe
.
.
According to the evaluation results of the fourth total diet study in China in 2007, the dietary 3-MCPD exposure risk of the Chinese population is relatively low, and is lower than that of some foreign countries
.
.
Can you rest assured to eat snacks?
Back to the question that everyone is most concerned about: all carcinogens have been detected, can we rest assured to drink milk powder and eat shrimp chips and chips?
These "carcinogens" may have adverse effects on health.
However, considering the current consumption and hazards, these substances are not as harmful to the human body as everyone is worried about, and they can be eaten with confidence
.
However, considering the current consumption and hazards, these substances are not as harmful to the human body as everyone is worried about, and they can be eaten with confidence
.
In fact, with the advancement of detection technology, more and more by-products may be discovered
.
.
Several substances reported in the news this time were gradually discovered by people with the advancement of detection technology, but they have been there all the time, and they are not necessarily harmful
.
.
There is no safety limit for carcinogens.
Of course, we hope that they are as few as possible, and it is best not to.
This is also the direction that all food companies should strive for
.
Of course, we hope that they are as few as possible, and it is best not to.
This is also the direction that all food companies should strive for
.
But in many cases it may be difficult.
If we blindly require that the food is completely free of hazardous substances, then we may have nothing to eat
.
If we blindly require that the food is completely free of hazardous substances, then we may have nothing to eat
.
However, what needs to be reminded is that foods such as shrimp chips and potato chips are high-fat and high-sugar foods.
The nutrition is very simple, basically only providing energy, and the oil is too salty, which is not good for health
.
The nutrition is very simple, basically only providing energy, and the oil is too salty, which is not good for health
.
Therefore, even if there are no such substances as acrylamide, glycidol and chloropropanol, these snacks should be given to children less
.
.
