At present, most people are still unwilling to eat genetically modified foods, but GM foods are ubiquitous. We cannot predict the catastrophic consequences of this technology, but we understand that such destruction will be irreversible. The Arowana edible blender bottle is marked with small, almost invisible characters: soybean oil is extracted from genetically modified soybeans and rapeseed oil is extracted from genetically modified rapeseed. Arowana's brand marketing is doing quite well. One can imagine how many people in China have eaten the oil extracted from genetically modified soybeans.
Genetically modified foods are everywhere: potatoes, tomatoes, papaya, soy bean oil, salad oil, blended oils, beverages, milk powder, biscuits... In 1998, American media reported on Professor Pustao of the British Reuter Institute In an exclusive interview, he warned people to focus on genetically modified foods that have been promoted without fully demonstrating their safety. After experimenting: After mice were fed with genetically modified potatoes, abnormal growth of organs, weight and organ weight were reduced, and the immune system was destroyed. The safety of genetically modified foods has always been highly controversial. At present, no consensus has been reached internationally. Its existence was only a short period of more than 10 years. Many long-term effects are still unknown. The consumption of GM foods is like treating oneself as a white rat, which has unpredictable risks. Therefore, precautionary principles should be adopted for genetically modified foods, and genetically modified raw materials should not be used in food production until long-term safety has been completely determined.
For a long time, genetic engineering has been "deified" and promoted as a new revolution in agricultural development. The negative harm to it has rarely been discussed. In particular, it is difficult for high-level policy makers in various countries to hear what harm GMOs pose. Over time, this will certainly produce fatal errors in the future development of humankind.
At present, Mexico banned the cultivation of genetically modified corn; the European Union suspended the import of genetically modified foods; Japan, Australia, New Zealand, and other countries require that GM foods be clearly labeled to indicate the content of genetically modified ingredients; many large supermarkets in the UK prohibit the use of genetically modified organisms as raw materials. food.
The trade friction between Europe and the United States due to "genes and fruits" caused the Europeans to be reluctant to eat the "genetic fruits" produced by Americans. Later, some “informed people†in the United States proposed that “genetic fruits and fruits†must be labeled when they are sold. On March 26th, the start of the new millennium, the anti-genetically modified foods in Boston in the United States were demonstrated. At the time when 3,500 people held the “Biology 2000†conference, they protested that food manufacturers did not experiment with genetically modified foods and did not provide enough for consumers. The relevant information. There are already well-informed sources in China who have pointed out with concern: “Researches on GM foods have shown that herbicide-tolerant GM soybeans also have reduced anti-cancer components. Insect-resistant GM corn also has an impact on the maturation of beneficial insects, as well as small animals. Eating genetically modified potatoes will damage the internal organs and the immune system. That person...". Europeans are forbidden to sell in Europe because genetically modified foods may be harmful to humans; even in the United States, dealers are required to have GM foods labeled.
In August 1998, British professor Puzzi found that after the rats had eaten the genetically modified potatoes, the immune system was damaged; in the United States there were also reports of the natural enemies of pests being killed by the transgenic plants; on May 22, 2005, the British newspaper “The Independent†A report by Monsanto, a well-known biotech company, was disclosed, showing changes in organs and changes in blood components in mice fed with genetically modified foods. The news shocked the world, but also made more people doubt the safety of food made from genetically modified raw materials.
GM rice will bring about many risks to the ecological environment and food safety. In terms of food safety, the safety of rice is particularly critical because rice is the staple food for direct consumption in most cases. However, the safety of the illegally-transgenic rice has not been evaluated for a long period of time, and it is still very doubtful whether it is safe to eat it. In terms of ecological environment, due to the possibility of transgenic escape during the planting of GM rice, the pollen and seeds will transfer the transgene to adjacent non-transgenic varieties of the same type. In the mid-season regional trials, the 65 species of rice that participated in the experiment were densely planted with a spacing of only about 30 centimeters from each other and were highly susceptible to genetic escape, resulting in widespread genetic contamination. A genetically engineered soybean has been found to cause serious allergic reactions; tryptophan, a food additive produced by genetically engineered bacteria, has caused 37 deaths and more than 1,500 were disabled. It has recently been discovered that milk in many U.S. supermarkets contains genetically engineered bovine somatotropin that has been applied in pasture. The tomatoes produced by a well-known genetic engineering company are resistant to storage and transport, but they contain antibiotic-resistant genes that can survive in the human body. Man-made characteristics and inevitable imperfections will continue to be passed on from one generation to the next, affecting other related and unrelated creatures. They will never be recovered or controlled. The consequences are currently inestimable.
Damage to animal organs by genetically modified foods has been confirmed by a secret research report by a well-known British biotechnology company. The following aspects of suspicion exist in the safety of genetically modified foods: 1. Toxins or increased levels of toxins in foods. Some researchers believe that genetically modified foods may increase the content of trace toxins, which can lead to certain genetic diseases. 2, reduced nutrients. The report of the British Ethics and Toxicology Center reported that the beneficial ingredients in GM foods have been reduced by 12% to 14%. 3, cause allergic reactions to the human body, causing unpredictable consequences. Natural foods do not have the above shortcomings and are relatively safe to the human body.
Ye Yongmao, an expert on food safety in China, also put forward his own view: “There are at least five major potential risks in genetically modified foods: the production of toxins, human carcinogenic teratogenicity, or genetic mutations, resulting in allergic reactions in the human body and causing food trophic structures. Imbalances make the human body resistant to drugs and unbalance the natural and ecological environment. Now many European countries have resisted the listing of genetically modified foods."
Gate valve is a relatively common general-purpose valve, the use of a wide range of applications, mainly in water conservancy, metallurgy and other industries, its extensive use of performance has been recognized by the market.
Gate valve structure: gate valve is the use of the gate and seat to control the opening and closing of the valve. Gate valve mainly has a valve body, valve seat, gate, valve stem, valve cover, stuffing box, packing gland, stem nut, hand wheel and other components. Depending on the change of the relative position between the gate and the valve seat, the channel size can be changed and the channel can be cut off. In order to make the gate valve close tightly, the mating surface of the gate plate and the valve seat are ground.
Gate Valve,Gate Valve Price,Slide Gate Valve,Gate Valve Types
WUXI KVC-VALVE , https://www.wxkaiweixi.com