physical properties of riboflavin
in free form Vitamin B2 is a bitter yellow-orange crystals.It is poorly soluble in water and ethanol, insoluble in benzene, acetone, chloroform and diethyl ether.Is rapidly degraded in alkaline medium, but is stable in acidic.
Riboflavin both biochemical compound
to the human body Vitamin B2 is a biologically active substance.It is part of many redox enzymes, as a coenzyme.Flavin enzymes necessary for oxidation succinic acid, and other fatty acids, oxidation and inactivation of highly toxic aldehydes cleavage D-isomer amino acid of alien organisms resulting vital functions of bacteria.Moreover, they are involved in the synthesis of folacin and vitamin B6. Because riboflavin is destroyed by exposure to the sun, it must be stored away from sunlight.However, by
Riboflavin is involved in energy metabolism and biological oxidation reactions.It is also needed for the construction of the visual pigment rhodopsin, which protects the retina from the harmful effects of ultraviolet radiation, and the activation of several other vitamins, including pyridoxine, vitamin K, and folic acid.
How does a lack of vitamin B2
Vitamin B2 is needed for the formation of red blood cells and antibodies, the regulation of growth and reproductive functions, important for healthy skin, hair and nails.Riboflavin deficiency can manifest itself outwardly cracks in the mucosa of the lips, ulcerations in the corners of the mouth, tongue swelling and redness, peeling of the skin on the lips, on the wings of the nose, nasolabial folds and ears.From the visual organs may appear photophobia, conjunctivitis, keratitis, and even cataracts.There may be anemia, abnormalities in the nervous system, muscle weakness, pain in the legs, and others.
Why a deficit B2
deficit B2 is mainly developed due to insufficient intake of foods containing the vitamin - for example, when an unbalanced dietor a specific diet.Given the instability of riboflavin to light, to be stored and thawed mushroom, meat and vegetables in a dark place, and cook uncovered.On the lack of vitamin in the body can also affect the gastrointestinal tract, reduces the absorption and assimilation of food, and taking certain medications. adult needs per day about 1.1-1.3 mg of vitamin B2.With significant physical and mental stress, this need increases.
Sources of vitamin B2
most vitamin B2 is found in liver, kidneys, yeast, cheese, eggs, almonds, mushrooms, white mushrooms and chanterelles.Because herbal products are particularly rich in riboflavin, broccoli and cauliflower, cabbage, buckwheat.A little less vitamin in the milk, rice, pasta, bread, fruit and vegetables.
Pharmacological preparations Vitamin B2 is used to treat and prevent vitamin deficiency, skin diseases and weak healing wounds, eye diseases, diabetes, anemia, cirrhosis of the liver, impaired function of the gastrointestinal tract.Drugs are produced in the form of powder, tablets of different weight or ampoules containing 1 ml solution for intramuscular administration.In overdose possible staining of urine yellow-orange color.