Plasticizers are among the largest plastic additives in the world's production and consumption. In recent years, China has become the largest producer and consumer of plasticizers in Asia. With the improvement of environmental awareness in countries around the world, pharmaceuticals and food packaging, daily necessities, toys and other plastic products have raised higher purity and hygienic requirements for major plasticizers such as DOP, but at present, the main plasticizers produced by domestic companies have many properties. Especially in terms of hygiene, low toxicity, etc., it is difficult to meet the requirements of environmental protection. The European Union and Russia have successively discovered from China’s imported plastic toys that some plastic toys originating in China contain toxic polyvinyl chloride plasticizers—diisodecyl phthalate (DINP) and diethyl phthalate. Ketohexyl ester (DEHP or DOP).
For a long time, plasticizers were mainly based on o-benzenes, but with the increasing use of DOP in food and pharmaceutical industries, people are paying more and more attention to its toxicity. It was found that DOP products were found in the human lungs when the blood stored in the polyvinyl chloride plastic bag was introduced into the human body. In 1982, the authority of the National Cancer Institute of the United States conducted a bioassay on the carcinogenicity of DOP. The conclusion was 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 phthalates, according to the results 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 drugs. Plasticizer products to replace.
According to the results of European and American countries such as Japan, South Korea and other countries, DOP (DEHP) is more harmful than DOA (DEHA). For example, the EFSA of the European Food Safety Agency stipulates that concentrations of DEHA in humans above 0-3 mg/kg are considered to be unsafe, while DEHP concentrations above 0 05 mg/kg are considered to be unsafe. DOA and DOP are all plasticizers widely used in China's polyvinyl chloride food cling film. Special DOPs are the most versatile plasticizers and are used in large quantities in food packaging products. Among the ten main plasticizers allowed in PVC cling film in China, the first one is dioctyldioic acid (ie, DEHA, abbreviated as DOA), and the next three are phthalates DBP, DOP, and DI OP. Their toxicity is relatively greater than DE-HA, due to the higher production costs of DOA, so most of the domestic PVC plastic wrap production enterprises use DOP, DBP as the main plasticizer, so that the produced plastic wrap, especially used in containing When fats are high in meat products, or when they are wrapped in foods and heated in microwave ovens, the chances of their plasticizers migrating into packaged foods will be even greater, potentially causing harm to human health. However, it is safer to use vegetables, especially before eating or preparing foods.
As for the potential carcinogenic risk of DOP, international measures have been taken to limit the use of DOP. Has the United States stopped the industrial production of six phthalates? Does the Swiss government decide to ban the use of DOP in children's toys? Has Germany banned the use of DOP in all plastic products related to human and health food? In Japan, DOP Plastic additives are limited to use in industrial plastic products. At present, the world has accelerated the research and development of non-toxic plasticizer products, and especially accelerated the basic application research of plastic products with high hygiene requirements. In China, plasticizers such as DOP, which have been eliminated overseas, have a large market, and plasticizer manufacturers have not paid enough attention to the development and promotion of non-toxic new plasticizers. 80% of the plasticizers on the domestic market are DOP, DBP (dibutyl phthalate), etc. The low price is the most critical factor. The National Standard “Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials†also lists DOP as one of the plasticizers that can be used for food packaging.
The latest test results from Tongji University show that using plastic drums for edible oils, edible oils will dissolve in plasticizers that are harmful to the human body. The research team led by Prof. Li Shuguang of the School of Basic Medicine of Tongji University collected plastic barrelled soybean salad oil, blended oil, and peanut oil from different brands and dates of manufacture on the market, as well as bulk soybean oil sold on the market and fried foods from a fast food restaurant. Solids shortening, condensate oil collected in residential kitchen hoods, etc. The scientific team determined the samples and found that almost all brands of plastic barreled cooking oil contained “dibutyl phthalate (DBP)†and “dioctyl phthalate (DOP)â€. Both plasticizers are acid ester plasticizers that are often used in the plastics industry, while bulk soybean oils and solid shortenings that are not packed in plastic containers are virtually free of plasticizers. It is presumed that plasticizers detected in edible oils mainly come from their plastic containers. At present, most of the oil consumed by the millions of families in our country for three meals a day is plastic barrels of edible oil purchased from the market. However, the current national standards do not include plasticizers in the physical and chemical indicators of edible oil testing, and there are no provisions and requirements for plasticizer content. As China's relevant standards lag, this is actually the "tip of the iceberg" of plasticizer contamination. The wide range of plasticizers used, the large area of ​​contamination, and the large number of people affected, are worse than pesticides, DDT, etc.
For a long time, plasticizers were mainly based on o-benzenes, but with the increasing use of DOP in food and pharmaceutical industries, people are paying more and more attention to its toxicity. It was found that DOP products were found in the human lungs when the blood stored in the polyvinyl chloride plastic bag was introduced into the human body. In 1982, the authority of the National Cancer Institute of the United States conducted a bioassay on the carcinogenicity of DOP. The conclusion was 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 phthalates, according to the results 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 drugs. Plasticizer products to replace.
According to the results of European and American countries such as Japan, South Korea and other countries, DOP (DEHP) is more harmful than DOA (DEHA). For example, the EFSA of the European Food Safety Agency stipulates that concentrations of DEHA in humans above 0-3 mg/kg are considered to be unsafe, while DEHP concentrations above 0 05 mg/kg are considered to be unsafe. DOA and DOP are all plasticizers widely used in China's polyvinyl chloride food cling film. Special DOPs are the most versatile plasticizers and are used in large quantities in food packaging products. Among the ten main plasticizers allowed in PVC cling film in China, the first one is dioctyldioic acid (ie, DEHA, abbreviated as DOA), and the next three are phthalates DBP, DOP, and DI OP. Their toxicity is relatively greater than DE-HA, due to the higher production costs of DOA, so most of the domestic PVC plastic wrap production enterprises use DOP, DBP as the main plasticizer, so that the produced plastic wrap, especially used in containing When fats are high in meat products, or when they are wrapped in foods and heated in microwave ovens, the chances of their plasticizers migrating into packaged foods will be even greater, potentially causing harm to human health. However, it is safer to use vegetables, especially before eating or preparing foods.
As for the potential carcinogenic risk of DOP, international measures have been taken to limit the use of DOP. Has the United States stopped the industrial production of six phthalates? Does the Swiss government decide to ban the use of DOP in children's toys? Has Germany banned the use of DOP in all plastic products related to human and health food? In Japan, DOP Plastic additives are limited to use in industrial plastic products. At present, the world has accelerated the research and development of non-toxic plasticizer products, and especially accelerated the basic application research of plastic products with high hygiene requirements. In China, plasticizers such as DOP, which have been eliminated overseas, have a large market, and plasticizer manufacturers have not paid enough attention to the development and promotion of non-toxic new plasticizers. 80% of the plasticizers on the domestic market are DOP, DBP (dibutyl phthalate), etc. The low price is the most critical factor. The National Standard “Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials†also lists DOP as one of the plasticizers that can be used for food packaging.
The latest test results from Tongji University show that using plastic drums for edible oils, edible oils will dissolve in plasticizers that are harmful to the human body. The research team led by Prof. Li Shuguang of the School of Basic Medicine of Tongji University collected plastic barrelled soybean salad oil, blended oil, and peanut oil from different brands and dates of manufacture on the market, as well as bulk soybean oil sold on the market and fried foods from a fast food restaurant. Solids shortening, condensate oil collected in residential kitchen hoods, etc. The scientific team determined the samples and found that almost all brands of plastic barreled cooking oil contained “dibutyl phthalate (DBP)†and “dioctyl phthalate (DOP)â€. Both plasticizers are acid ester plasticizers that are often used in the plastics industry, while bulk soybean oils and solid shortenings that are not packed in plastic containers are virtually free of plasticizers. It is presumed that plasticizers detected in edible oils mainly come from their plastic containers. At present, most of the oil consumed by the millions of families in our country for three meals a day is plastic barrels of edible oil purchased from the market. However, the current national standards do not include plasticizers in the physical and chemical indicators of edible oil testing, and there are no provisions and requirements for plasticizer content. As China's relevant standards lag, this is actually the "tip of the iceberg" of plasticizer contamination. The wide range of plasticizers used, the large area of ​​contamination, and the large number of people affected, are worse than pesticides, DDT, etc.