DOA is DEHA
It is puzzling to know that from time to time, some government officials and news media have formed a point of view. The polyvinyl chloride food wrap is harmful to the human body is DEHA, and the national standard allows the use of DOA is harmless of. The reporter checked this national standard, and in the plasticizer space of the National Standard for Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials (GB9685-2003), DOA is indeed listed first, and DEHA is not listed among them. However, after the "Food Preservation Film Disturbance," Zhou Yongfang, the director of the Yixing Water Aid Additive Factory in Jiangsu Province, found a reporter several times and pointed out that DOA is DEHA. This is just a plasticizer commonly used in both English acronyms. There are also many Chinese names. Two, such as bis(2-ethylhexyl) adipate, di(2-ethylhexyl) adipate, and commonly known dioctyl adipate are also the plasticizers. The reporter specifically investigated some materials for this purpose. At the same time, he consulted with several experts specializing in plasticizers - Sun Wenhua, a researcher of the Institute of Chemistry of the Chinese Academy of Sciences, Professor Gongliu Cheng of Beijing University of Chemical Technology, and Professor Jiang Pingping of Jiangnan University, all of which confirmed this point. Professor Gongliu Cheng told reporters: "Yes, DOA is DEHA. At present, China is confusing it. As a chemical professional, it has the responsibility to clarify it."
The reporter noted that some Japanese and South Korean companies investing in the production of polyvinyl chloride food cling film in China have also resorted to public opinion in order to cope with public opinion and inspections. They claim that the plasticizer they use is the DOA allowed by the Chinese national standard, not DEHA.
Director Zhou Yongfang said that I was ashamed that these officials did not know that DOA was DEHA, that they had made defiance speeches such as DEHA toxic and DOA non-toxic in press conferences and media; the maximum allowable DOA for national standards was 35. %, so DEHA continues to harm consumers and feel sad.
DOP is more suspicious than DOA When the reporter interviewed Professor Jiang Pingping, he learned that currently in Europe, America, Japan, Korea, and other countries, the banned varieties that come into contact with humans with plasticizers are those that contain heavy metals, and those that have benzene rings. For a long time, plasticizers are mainly based on o-benzene, but as the use of DOP in the food and pharmaceutical industries becomes more and more widespread, people are paying more and more attention to its toxicity. It has been found that when people enter blood stored in polyvinyl chloride plastic bags, DOP products are found in the human body, especially in the lungs. In 1982, the authoritative National Cancer Institute conducted a bioassay of the carcinogenicity of DOP. The conclusion is that DOP is a carcinogen of rats and mice and can cause carcinogenicity in livers of carnivores. As a result, the toxicity of DOP has attracted worldwide attention. Although the argument that people cause cancer is still debated, due to its potential carcinogenicity, various countries have taken corresponding measures. The US Environmental Protection Agency has stopped the production of six new phthalate esters based on the findings of the National Cancer Institute. DOP is limited to the use of high-water-content food packaging, and meat packaging must use other non-toxic products. Plasticizer products to replace; Swiss government has decided to ban the use of DOP in children's toys; Germany prohibits the addition of DOP in all plastic products related to human health and food; Japan prohibits the addition of DOP in medical device-related products, limited to Application in industrial plastic products.
Director Zhou Yongfang said that DOP (DEHP) is more harmful than DOA (DEHA) according to the findings of European and American countries such as Japan, South Korea and the promulgated standards. For example, the European Food Safety Agency EFSA stipulates that concentrations of 0.3 mg/kg or more of DEHA in the human body are considered unsafe, whereas concentrations of DEHP above 0.05 mg/kg are considered unsafe. If the degree of harm to the human body, Zhou Yongfang made an image metaphor: "DOA is like a thief, DOP is a masked thief."
Blood transfusion bags also contain DOP
The reporter learned that DOA and DOP are currently plasticizers widely used in domestic PVC food cling film. In particular, DOP is the most widely used type of plasticizer, and it is used in a large number of food packaging products. The national standard “Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials†also lists DOP as a plasticizer that can be used for food packaging. one. What is more serious is that many domestic blood transfusion bags and medical supplies are polyvinyl chloride products containing DOP.
At present, Europe, America, Japan, South Korea, and other countries have used citric acid esters, epoxy acid esters, and other environmentally friendly plasticizers as replacements and substitutes. They have introduced the use of DOA in food packaging, medical supplies, and children's toys that are in contact with humans. , DOP standards and regulations, and in our national standards, it also expressly provides for the use of DOA, DOP. Although these plasticizers are not yet known to be carcinogenic, due to the lagging of relevant standards in China, many domestic plastic products have been hindered from exporting, and products containing outdated plasticizers have been subject to immigration. The problem of lagging agent standards is imminent.
In the blaming of the relevant national standards caused by the polyvinyl chloride food cling film, relevant persons of the national health and quality inspection agencies once clarified that the national standards for polyvinyl chloride food packaging are synchronized with international standards. , The national standard does not allow the use of DEHA [bis(2-ethylhexyl) adipate] plasticizer. Only DOA (dioctyl adipate), DOP [phthalate di(2-ethyl)] are allowed. Hexyl ester) and other harmless plasticizers. As for what happened, the reporter interviewed yesterday the director of the company that has long produced plasticizers and some experts from the Chinese Academy of Sciences and universities who studied plasticizers. They have objections to this.