A transgenic tomato containing "hepatitis B vaccine" has been successfully developed by the Institute of Biotechnology, Chinese Academy of Agricultural Sciences. According to experts, in the next two years, people will be able to buy such tomatoes on the market. It is natural to use the method of eating tomatoes to prevent hepatitis B naturally more than accepting injections. However, what kind of taste does this GM tomato have, and will it fail to eat it?
"Tomato hepatitis B vaccine" is more convenient than hepatitis B vaccine injection
The deputy director of the National 863 Program “Using Genetically Modified Plants to Produce Oral Vaccine against Hepatitis B†and Liu Dehu, a researcher at the Institute of Biotechnology of the Chinese Academy of Agricultural Sciences, introduced that the original Hepatitis B vaccine was extracted from the plasma of asymptomatic hepatitis B virus carriers. Hepatitis B virus is not completely inactivated. In addition, the source of the vaccine is very limited, the price is relatively expensive and requires multiple injections, which may cause uncomfortable reactions such as fever, nausea, vomiting, and diarrhea. Therefore, China began to use genetic engineering to reconstitute hepatitis B vaccine in 1997. However, this vaccine still has problems requiring multiple inoculations and high prices. Therefore, the use of transgenic plants to produce hepatitis B oral vaccine is to reduce vaccine costs, simplify vaccination procedures, and expand the scope of vaccine protection.
Adding hepatitis B virus surface antigen recombinant protein particles to tomatoes can eliminate the possibility of being contaminated by other harmful microorganisms. The GM tomatoes grow in the field and do not need to be purified or refrigerated. They are eaten directly and are convenient and cheap. People who are afraid of injections can also save the pain and trouble caused by multiple injections. Moreover, people can eat GM tomatoes at any time according to their own preferences, so that the body's hepatitis B virus antibodies are always maintained at a high level.
The taste of this GM tomato is not much different from ordinary tomatoes
Everyone is very concerned about the taste of this transgenic tomato but also tomatoes? Will there be drug smell? Researcher Liu said that this kind of tomato only uses genetically modified technology to increase the protein content in the cells. Therefore, no matter how it looks or tastes, it will not be much different from ordinary tomatoes. However, in order to ensure the quality of genetically modified tomatoes, blocking counterfeiting is a more important task after production. Future GM tomatoes may have only one or more companies qualified to produce in the country. By the time, the tomatoes will be branded with a uniform logo when they are on the market, and there will be a detailed brochure explaining what to eat.
Eat this genetically modified tomato without worrying about overdose in the body
When it comes to genetically modified foods, many consumers always think about safety issues. In fact, genetically modified foods are developing in China and developed countries in Europe and America. People often understand the unsafe nature of genetically modified foods as a problem with the food itself. In fact, GM foods must undergo rigorous testing before being marketed. At present, what scientists call insecurity is not yet fully understood when it comes to the impact of genetically modified crops on the ecological environment.
The Tomato Hepatitis B Oral Vaccine is not intended to replace the existing injection hepatitis B vaccine, but to give people more choices. Those who are willing to take injections can still prevent hepatitis B through injections. They are reluctant to go to hospitals, and they can also eat tomatoes at home to solve problems. It is not only suitable for people who have not received the hepatitis B vaccine, but also for people who have been injected with the hepatitis B vaccine but whose five-year protection period is about to end.
Each GM tomato sells for about two to three dollars, which is more expensive than the average tomato. People will not eat a lot at a time, because eating more will not further improve the immune effect. In addition, a large number of animal experiments have confirmed that the excess antigen protein will only be absorbed by the body and will not produce any toxic side effects to the human body. However, consumers should wash and eat raw tomatoes after they have bought such special-purpose tomatoes. The effect of heating and cooking will be greatly affected.
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