1. What is nucleic acid?
Nucleic acids can be divided into two categories: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Like protein, it is a biomacromolecule that constitutes human cells, and consists of bases, ribose and phosphoric acid. There are two kinds of bases: purine and pyrimidine. The base connected to ribose is nucleoside, and then connected to phosphoric acid is nucleotide. Many nucleotides are linked together in a certain order to form a nucleic acid. Nucleic acid has the function of encoding genetic instructions and carrying genes; However, endogenous and exogenous bases, nucleosides and nucleotides have no genetic function and no genetic information. They have many physiological and nutritional functions.
Second, food nucleic acid can be digested and absorbed, which plays a nutritional role and has no genetic function.
Nucleic acids in food are degraded by enzymes existing in the intestine and become bases, nucleosides and nucleotides with no genetic function. It is these three substances that are really absorbed by nucleic acids in food, not nucleic acids with genetic functions. When people eat rice and noodles, they do not directly absorb carbohydrates, but absorb glucose, a degradation product; When eating meat and eggs, protein is not directly absorbed, but the degradation product amino acid of protein; When you eat fat, you absorb the degradation products of fat, such as glycerol and fatty acids. But we don't call eating protein eating amino acids, and we don't call protein nutrition amino acid nutrition. Bases, nucleosides and nucleotides digested and absorbed from food are not different from endogenous similar substances in composition, structure and function, and also play physiological and nutritional roles. Therefore, nucleic acid can be digested, absorbed and transformed into physiological substances and nutrients; Nucleic acid food is not genetic food.
Development and utilization of nucleic acid food
Nucleic acid is the source of life. Nucleic acid nutrition and nucleic acid food are hot spots in the medical field at present, which are related to the extension of human life, the prevention and treatment of diseases, food production and family planning and other issues most closely related to human beings. Some scientists believe that nucleic acid is a nutrient for 2 1 century.
First, deoxyribonucleic acid (abbreviated as DNA damage is the primary factor of human aging)
Second, DNA and anti-aging
Third, DNA can be synthesized in the human body and can also enter cells through diet.
Fourthly, nucleic acid nutrition is popular all over the world.
In recent years, people's understanding of nucleic acid nutrition and anti-aging is getting deeper and deeper, and nucleic acid nutrition is popular all over the world. According to the prediction of American scientific community, by 2025, nucleic acid gene nutrition will account for 20% of American gross national product. At present, some research nucleic acids in the United States have been put on the market as drugs to prevent and treat cancer and AIDS. France and the United States have successfully developed nucleic acid nutrition almost simultaneously. In the early 1980s, a variety of nucleic acid drugs were produced and recommended to the international market. Because nucleic acid can absorb ultraviolet rays, it can prevent black spots, brown spots, yellow spots and senile diseases, and also has the functions of moisturizing, inhibiting sebum secretion, activating cells and softening skin. In recent years, it has been made into cosmetics and is very popular.
Japan has been researching and developing nucleic acids for at least 30 years. Japanese Institute of Molecular Comprehensive Medical Nutrition extracted dinucleic acid supplementary food from yeast, and extracted various nucleic acid additives from fish sperm and animal organs to produce nucleic acid seasoning, nucleic acid bread, nucleic acid tofu, nucleic acid brain tonic, nucleic acid bodybuilding agent, nucleic acid tonic and so on, which sold well in China and Southeast Asia. 1988 "Nippon New Drug Co., Ltd." also used nucleic acid as an anticancer and antiviral agent, and took the lead in applying for a patent in China. Japanese nucleic acid preparations are in short supply, especially for middle-aged and elderly people, and attach great importance to nucleic acid nutrition.
Verb (abbreviation of verb) supplement of nucleic acid
Since 1980s, the international medical community has advocated nucleic acid nutrition. It is advocated that we should try our best to ingest some natural foods rich in nucleic acids, such as marine fish, seafood, animal liver, beans and products, yeast, mushrooms, aloe, cactus, fungus, pollen, cauliflower, carrot, onion, leek, onion, spinach, Chinese cabbage, mustard, asparagus, radish, etc., and make full use of natural foods rich in nucleic acids, which is an important source of nucleic acids.