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What are antioxidants


malic kazhuraThese days, nobody will be surprised by the word "antioxidants" - a rare advertising products do without him. "Foods containing antioxidants," "beauty with antioxidants," "antioxidants, prolonging youth" ... But even some 30 years ago about antioxidants known only to narrow specialists. And they used to slow the oxidation processes in the rubber ...! idea to use antioxidants in the treatment of certain diseases came to the Russian (then Soviet) biochemists, who sought a means to help cope with the effects of radiation sickness. It was found that antioxidants play an important role in normal functioning of healthy cells, as universal regulators of the composition, structure and activity of cell membranes. Natural and synthetic antioxidants were used in oncology, cardiology and neurology. So what kind of substances such wonderful? At first glance, it's simple: the "anti" - means "against", "oxidant" - "oxidation", it turns out - "antioxidant". This is, in principle, correct. Just not very clear - as substances that reduce oxidation processes in the rubber, helping to prolong youth (and whether they prolong it at all, or just another gimmick?). But first we need to understand - what is the "oxidation", as there are processes of oxidation in the body, which is free radicals and why they are harmful. Almost all of the destructive processes in nature take place with the participation of oxygen and are called oxidation. Rotting of leaves - it's oxidation. Rusts iron - this oxidation. The combustion-oxidation is also just a quick. The oxidation of hydrocarbons, acids, fats and other organic molecules, oxygen is a chain process. The human body can not use the energy of sunlight, like plants, so we get the energy from the oxidation of organic compounds.Organic compounds are oxidized in the cell and serve as sources of energy - it is, basically, fats and carbohydrates from food. Biological oxidation of organic matter similar to the burning of fuel in the fire, but burning it happens slowly, and the heat generated by the cells, does not burn, as the combustion of, say, wood or coal.The result of biological oxidation is heat, which allows you to maintain a constant body temperature, the formation of water and carbon dioxide, as well as the conversion of certain substances (bile acids, amino acids, steroid hormones). In addition, the oxidation is alien and neutralization of toxic substances to our body (unoxidized products of respiration, aromatics, etc.). Biological oxidation is also called tissue or cell respiration. course, in order to describe all the details of the oxidation process, you need to write a chemical-biological treatise, but we do not need it - from the above it is clear that the oxidation is a very important process occurring in our body. Why, in this case, we need antioxidants? The fact that the painful condition, chronic illness, stress, exposure to radiation in the body causes the formation of free radicals (ie, products of incomplete reduction of oxygen). An excess of free radicals leads to lipid peroxidation (the basis of cell membranes), which impairs their function. As a result - premature aging of the body, frequent illness, and even the formation of malignant tumors. Nature has provided the antioxidant defense system of our body, which is divided into primary (anti-oxidants, enzymes) and secondary (anti-oxidants, vitamins). Enzymes (primary protection) are engaged in "cleaning" of reactive oxygen species, turning them into hydrogen peroxide and a less aggressive radicals, and then expanding them in water and useful oxygen. Vitamins (secondary antioxidant protection), referred to as "quenchers" - they "put out" violent radicals, taking away the excess energy and retarding the development of a chain reaction of formation of new radicals. To the "quencher" refers to vitamins C, P, A, E, K, bioflavonoids (rutin, citrine, askorutin, kvertetsin), sulfur-containing amino acids, trace minerals zinc and selenium (as well as manganese, copper and iron) and alcohol microdoses.Antioxidant Protection working with us from birth, throughout our lives, gradually weakening with age. Therefore, we need to maintain our defensive system from the outside. Modern interest in antioxidants called again "discovery" of the biological effects of antioxidants on the West in the 80s of last century, which spurred a wave of research on this topic, the results are immediately picked up by traders. Unfortunately, in pursuit of a "fashionable" drugs and nutritional supplements, many have forgotten that antioxidants - this is not a panacea, but very subtle regulatory instrument. The effectiveness of antioxidants depends on the dose, but this does not mean that the more antioxidants we take, the better and faster results will be. Rather the opposite - high concentrations of antioxidants in the beginning to act in the opposite direction, and does not inhibit, but rather accelerate free radical reactions. So those who are looking to rejuvenate "flick of the wrist" by taking a pill a super-complex multivitamin, you should think about what to overdo it with artificial vitamins can be easily, but the "overeat" natural anitioksidantov unlikely - the body itself will bring the excess, leaving only the most necessary. greatest number of natural antioxidants in the crust and peel of many plants and fruits in the bones - where genetic information is stored. This is logical, because the plants are protected from oxidation by using antioxidants, generation, and we, to use these plants for food, saturate your body with antioxidants, protect ourselves from aging and disease. It is believed that biofavonoidy preventing the destruction and aging of the organism, found in those plants which have a pronounced pigmentation. That is, are the most useful products with the most dark color - blueberries, beets, black grapes, eggplant, red cabbage, etc. Our ancestors probably guessed the extraordinary usefulness of some products - not without reason that the table did not descend onion, garlic, cabbage, carrots, beets ... also possess antioxidant activity of turnip, radish, radish - cruciferous plants. All these plants are used for the prevention of cancer. In the parsley and celery contains valuable essential oils have antibacterial, antiseptic, antispasmodic effect on the gastrointestinal tract. Fruit juices also showed high antioxidant activity. In the juice of citrus fruits, grapes and pomegranates are found powerful antioxidants - flavonoids and anthocyanins. Interestingly, they are also very much in citrus mesocarp - the white layer under the skin. Juices made ​​from apples and winter varieties of chokeberry (Aronia) also have strong antioxidant effect. It should be noted that the factory juices are added preservatives and stabilizers, so the activity in these juices are much lower than that of freshly prepared home. Antioxidant activity was observed in extracts of Siberian Ginseng and Rhodiola rosea, Aralia tinctures, lemongrass, ginseng, devil, and all sorts of balsams. About balms worth mentioning separately. Balm (or elixirs) - a water-alcohol extract of the herbal mixture with added nutrients. The composition of balsams may include honey and pine nuts ("Demidov", "Altai", "Kliofit", "Cedar"), grape juice and wine is dry ("Lyukram"), brandy and coffee ("Holy Grail", "Ishim") .Apply balm to 2 teaspoons of 50-100 ml. mineral water or tea 2-3 times a day for 10-15 minutes before meals. Grape wines, especially reds, and brandy have high curative and preventive properties. They contain carbohydrates, polyphenols, organic acids, pectin, minerals, amino acids and vitamins. Wine improves pancreas, gall bladder and intestine, has anti-stress and the bactericidal activity, increases heart arteries, lowers blood cholesterol levels. Drink the wine is recommended three times a day for 50 ml, while eating, brandy - 15 ml. tea (especially green) contains many biologically active substances: a sugar, proteins, tannins, alkaloids, essential oils and vitamins. The quality of tea evaluate the content of flavonoids (unstable compounds which lose their activity during the oxidation). Attention fans of brewed tea "economical" way (in the morning and throughout the day): brewed tea should be drunk soon! Permanent drink turbid, brown, loses flavor and aroma, but the main thing - is losing its antioxidant activity.work performed antioxidants, it is difficult to overestimate. They free our body from the damaging effects of free radicals, increase immunity, help in the uninterrupted performance of the functions of all organs, slow down the processes that lead to aging ... So, to stay as long as possible the young and active, keep a healthy lifestyle, eat properly and thus compensate for supply of antioxidants from sources donated to us by nature.





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