Experts explained that we eat corn kernels from the botanical point of view can be divided into the seed coat, endosperm and embryo three parts, affecting the sweetness of the corn in the endosperm of the corn in the key factors. Sweet corn is different in that its endosperm is not only starch, but also a relatively high content of water-soluble polysaccharides, which gives it a sweet flavor different from ordinary corn. The reason behind this is that in a series of genes controlling starch synthesis in sweet corn, one or several genes have undergone a natural mutation and are in a pure recessive state, which cuts off part of the process of converting reducing sugars to starch. This "small defect" but contributed to the sweet corn delicious flavor.
Experts said that many people because of the sweet taste of sweet corn is different from ordinary corn, sweet corn is thought to be genetically modified technology cultivation, which in fact does not think of the corn's own genetic mutation will produce different traits.
Question 2: whether fruit corn is genetically modified corn Some people think that fruit corn is genetically modified food, in fact, fruit corn is cultivated through hybridization techniques, existed in the pre-Columbian period, there is no relationship with genetic modification. China eat network to take you to see. ? Fruit corn is a kind of super sweet corn suitable for raw food, also known as sweet corn and vegetable corn. Green stick stage skin hail juice, texture crispy and sweet, can be eaten raw, thin skin a bite to break, fragrant juice overflowing teeth and cheeks, eaten raw or cooked are particularly sweet, especially crispy, like fruit, so it is known as "fruit corn". There are many varieties of fruit corn, all with very high nutritional value. The sweet corn in production can be divided into three categories: ordinary corn, super sweet corn and enhanced sweet corn. Fruit corn is bred through hybridization techniques and is completely different from genetically modified varieties. Fruit sweet corn is a type of corn that differs from other corn due to the presence of one or several genes. The flavor of sweet corn is mostly determined by the sweetness, which in turn is influenced by the amount of sugar and starch in the endosperm. None of this is possible without the action of a number of mutants. Most mutants increase the amount of soluble sugar in the endosperm and decrease the amount of starch. The action of one sugar-containing mutant gene increases the water-soluble polysaccharide content and decreases the starch content. This particular mutant alone is economically important. History of the Origin of Fruit Corn According to research, sweet corn with a sugar-containing endosperm was present in pre-Columbian Central and South America. The native sweet corn of South America belongs to the Chullpi complex, the Quechua word for "sweet corn", which Grobman et al. classified as of Peruvian origin, an ancient local derivative. The origin of sweet corn in North America, and especially the relationship between modern cultivated types and Latin American sweet corn, is considered by some to be unclear. The ancestry of modern sweet corn is not known, although the 1867 catalog of books on the subject covers the subject. Some say that current sweet corn came from MaizDulce and is therefore related to Chullpi, while others say that the most recent origin of sweet corn is North American sweet corn, a mutation of the su gene in common field corn. Sweet corn breeding in China began in the early 1950s. It is the world's early sweet corn research and development of the country. 1968 Beijing Agricultural University that is now China Agricultural University, the first breeding "Beijing white sugar" sweet corn varieties. At present, through the introduction and breeding, has a large number of sweet corn varieties. Therefore, fruit corn has long existed, and has nothing to do with genetic modification. Nutritional value of fruit corn Fruit corn is rich in vitamins A, B1, B2, C, minerals and free amino acids, etc., easy to digest and absorb, is an emerging leisure health care nutritional food. Total sugar 33.6%, sugar content of up to 20%, is about double the general fruit, than watermelon is also 30% higher. Fruit corn is rich in fat, containing more than 60% linoleic acid, can reduce cholesterol deposition in blood vessels, to prevent hypertension, coronary heart disease and myocardial infarction and other diseases, and diabetes has a positive role in the prevention and treatment. Corn also contains recognized anti-cancer factor - glutathione, which can be combined with a variety of carcinogenic substances in the body, so that it loses the ability to cause cancer, and then excluded from the body through the digestive tract. Fruit corn fiber content is high, can promote intestinal compulsion peristalsis, reduce the accumulation of toxic putrefactive substances in the intestinal tract, can effectively reduce constipation, hemorrhoids, colon cancer and rectal cancer incidence; in addition, the corn in the cellulose can also prevent high blood pressure, heart disease, diabetes, obesity and many other diseases. Fruit corn is rich in vitamin E-2.44mg/kg, it is not only vitamins, but also can prevent skin pigmentation and pre-wrinkling, with a good role in delaying aging. Fruit corn contains glutamic acid 0.59%, can promote brain cell respiration, is conducive to the elimination of ammonia in the brain tissue, there is a very good key to the brain and enhance the effectiveness of memory.
Question 3: Is this genetically modified corn? How to distinguish is not genetically modified Yes, how to distinguish is not good to say, like I have experience, you can see can taste, can only be imagined not to say ah! I am a farmer
Question 4: Sweet corn and purple potatoes are genetically modified food can not eat First, sweet corn and purple potatoes are natural crops. Secondly, despite your avoidance, you've actually been eating products from genetically modified crops for a long time, such as foods containing various soy products, soybean oil, foods containing sugar (genetically modified beets), papaya,.... Everyone has basically been eating them for a long time and have found no evidence that they can't.
Question 5: Is all the corn you eat now genetically modified? How do you tell the difference between GMO and non-GMO corn? The vast majority of corn around us is the offspring of crossbreeding, and hybrid corn are batches of genes transferred, equivalent to the A variety of corn from the batches of B varieties into the body.
There is a significant difference between hybridized corn and genetically modified corn, which has only a few genes transferred into it and is unlikely to carry harmful genes.
Hybrid corn due to the batch of transferred genes, will inevitably bring a large number of harmful genes, these harmful genes, will not be in the hybridization of the first generation on the performance, but in the hybridization of the second generation or the third generation is bound to show the characteristics of the harmful genes, therefore, hybrid corn can not be retained in the planting of successive years. According to the theory of those anti-rotation people in our country, after eating the corn that can not be left to grow for years, it will be sterilized!
There is no difference in appearance between genetically modified corn and hybrid corn.
Question 6: Is sweet corn and glutinous corn genetically modified? It can not eat? Anyway, I don't eat it, it doesn't smell as good as the corn when I was a kid. The clothes we wear as long as the cotton are genetically modified cotton, McDonald's KFC, etc. are genetically modified oil fried, pigs, cows, chickens and ducks are genetically modified feed fed. Choice, do you have a choice.
Question 7: Is white sticky corn genetically modified corn Is sticky corn genetically modified?
Sticky corn, also known as glutinous corn, is characterized by the drying of the seed endosperm in the form of angular opaque and glossy waxy endosperm, and is therefore named waxy corn. Its chemical and physical traits are controlled by a single recessive gene (wx), which is located on chromosome 9. Sticky corn is gene segregation and free combination, plus selective expression; the corn itself has the difference between sticky and non-sticky, rather than the introduction of new genes from the outside, so it is not considered genetically modified. The official story is that there is currently no domestic promotion of genetically modified corn, and of course there is no genetically modified corn on the market.
Is sticky corn genetically modified
Glutinous corn originated in China. After corn was introduced into China, mutations occurred in the hard corn grown in the southwest, and the glutinous type gradually emerged through artificial selection. From the scientific name Zea mays L.sinensis Kulesh, that is, "Chinese species". Sticky corn is not a genetically modified product.
What is the difference between sticky corn and regular corn?
Sticky corn is sweet, sticky, tender, good taste, easy to digest, easy to absorb, high content of trace elements. Sticky corn tastes better than ordinary corn, so, so many people like to eat.
The difference between sticky corn and ordinary corn, not the amount of sugar, but their starch structure is different. Just like glutinous rice and ordinary rice is mainly the starch structure is different. Ordinary corn starch structure, is the right-handed body, that is, the starch structure of the long chain, is one by one to the right circle. And sticky corn starch is left spin body, is to the left of the circle.
Sticky corn compared to ordinary corn, not only sweet and tasty, but also more nutritious, sticky corn nutritional value than ordinary corn to be 1-2 times higher than the "life element" selenium content is 8-10 times higher than the 17 kinds of amino acids, 13 kinds of amino acids higher than ordinary corn. The 17 kinds of amino acids it contains, there are 13 kinds of higher than ordinary corn, the body has a very good health care function.
How to choose real sticky corn?
Since ordinary corn is also yellow or white, you can't tell the difference from the color *** sticky corn. If a vendor takes corn that is white in color and says it's sticky corn, watch out.
The real sticky corn, is neat particles, smooth surface, flat white corn, while the ordinary white corn is not arranged, corn particles uneven. In addition, the market flower color and purple corn is also basically sticky corn. And corn particles white and yellow mixed, the taste depends on the type of grain color more, such as yellow particles significantly more, its taste is biased towards sweet corn.
Question 8: Why plant genetically modified corn, ordinary corn is not good? First of all, we have to know that genetically modified corn and ordinary corn in the root of no different, genetically modified corn is only according to genetic modification, produced on the pest resistance. As for why we must develop genetically modified corn, this is related to the current state of agriculture in China.
Corn is the second most productive crop in China. And it is also the main feed for animal husbandry. The production of corn directly affects the two major industries of grain and animal husbandry. If corn production is tight, the price of meat rises. However, the pest resistance of common corn is very poor, the main pest affecting corn is the corn borer, common corn can be affected by the corn borer within a year and the yield can be reduced to 15%-30%; more serious may lead to the extinction of the harvest. This is fatal to many industries.
Therefore, it is imperative to research and plant genetically modified (GM) corn. The insect resistance of GM corn is only effective against the corn borer, which is a pest, and has no effect on human beings, and even on the seven-star ladybug beetle, which is a beneficial insect, it is harmless. I hope my reply can help you.