Introduction: The benefits of tea culture in China's long history of drinking tea are numerous too. Therefore, many elderly people have developed the habit of drinking tea. However, everything has two aspects of drinking tea and there are taboos and attentions. Especially for the elderly, if there is no restraint, Tea culture has a long history in China, and the benefits of drinking tea are also numerous. Therefore, many elderly people have developed the habit of drinking tea and health. However, everything has a two-faced nature. Drinking tea also has taboos and attention. Especially for the elderly, if there is no restraint, it may be harmful to health. In general, elderly people should drink tea and should not be too light. First, strong tea can easily lead to anemia and osteoporosis in the elderly. Strong tea contains a large amount of tannic acid, which can be combined with iron in food to form a compound that cannot be absorbed by the body and inhibits the body's absorption of iron. In addition to curbing absorption, strong tea will accelerate excretion and accelerate the loss of calcium in the body. The higher the concentration of tea drinking in the elderly, the greater the possibility of fractures. Second, drinking strong tea may affect the quality of sleep in the elderly. In the elderly, there will be various natural changes in the quality of sleep, such as decreased deep sleep, easy awakening at night, and snoring during the day. Drinking strong tea can disturb the body's autonomic nervous system, causing the elderly to become excited at night, and have shorter breaks and higher blood pressure. Once again, drinking tea will increase the cardiovascular load. The elderly are particularly unbearable. The heart function of the elderly has been gradually reduced with age. The tea is rich in caffeine, regular drinking tea, will make people heart rate, palpitation, palpitations, chest tightness, dizziness and other symptoms. Finally, drinking strong tea is bad for the digestive system of the elderly. The tannic acid in strong tea can inhibit the secretion of gastric juice, impede digestion, and cause gastrointestinal discomfort and loss of appetite. Weight loss causes abdominal distension, abdominal pain, and even habitual constipation and duodenal ulcer embolism. Therefore, doctors suggest that it is best for elderly people not to drink strong tea and to stay away from strong tea before, during the afternoon and before bedtime. It is best to drink tea about 20 minutes after a meal, which can help digestion, oily, clear stomach. In the category of drinking tea, black tea should be the mainstay. Oolong tea can diurete and is also suitable for the elderly. However, green tea is cool, gastrointestinal weak or constipation of the elderly should not drink. Single Packed Mottled Waxy Corn Waxy corn comes in a variety of colours. Some people wonder if waxy corn is a genetically modified product. In fact, it is not. Waxy corn originated in China. It is caused by a genetic mutation. Artificial selection gradually led to the emergence of a type of tannin.
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Waxy corn, also known as waxy corn, is sticky corn. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dented corn. Its chemical and physical characteristics are controlled by a recessive gene (wx), which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
Coloured glutinous corn is generally white, yellow, red, purple and black, with white, yellow and purple corn being the basic colours. Purple and white hybrids naturally become purple if the purple gene "beats" the white gene and vice versa, so if the two tie we see white and purple corn. Purple can turn into red and black corn, or as we often say, "red is purple and black is purple". Of these colourful corn, the most common yellow waxy corn is the most nutritious as it is rich in carotenoids...
Currently, the only genetically modified foods sold on the Chinese market are soybean oil and papaya. Waxy maize is a hybrid variety and is not associated with genetic modification. Therefore, it can be concluded that glutinous maize is a hybrid variety and has nothing to do with genetic modification.
Genetic modification is a type of "genetic engineering" in modern science and technology, which makes use of modern molecular biology techniques. Hybridisation is the mating of individuals of different genotypes to produce offspring that are different from the original "pure" breed. In a sense, it belongs to the natural exchange of genes that can occur in nature.
