The effect of various vitamins

Vitamin A combined with opsin to generate a rhodopsin, and rhodopsin is a sensitive material that retinal rod cells are sensitive to low light. When lack of vitamin A, to weak light sensitivity is reduced and cause blindness.

Vitamin C has reversible oxidation and reduction, widely involved in many biochemical reactions. The primary function has been the elucidation is involved in the synthesis of collagen. In addition, there are several aspects as follows: in intracellular electron transfer reaction plays an important role; participated in oxidation reaction of some amino acids; promote intestinal iron absorption and in vivo transporter; reduce transporter metal ion toxicity effect in vivo; can stimulate leukocytes phagocytic cells and the function of the reticuloendothelial system; promote antibody formation; it is natural inhibitors of carcinogenic nitrosamine; involved in adrenal steroid synthesis.

Vitamin E has the following several aspects:`the role of biological antioxidant effect, by neutralizing peroxidation chain generates free radicals and prevent the generation of free radicals caused oxidative chain interruption, thus preventing the cell membrane lipid peroxidation and caused a series of damage;a± - tocopherol can also affect the membrane phospholipid structure and the influence of biofilm formation; bpromoting the eighteen carbon two acid into twenty carbon four acid thus synthesis prostaglandin;cvitamin E and selenium deficiency can lower the body 's immunity and resistance to disease; dvitamin E in biological redox systems is cytochrome reductase cofactors; einvolved cellular DNA synthesis regulation;freduces copper, mercury, arsenic, silver, other metals and toxic element toxicity; gthrough containing selenium oxidized glutathione peroxidase turn into reduced glutathione peroxidase and reduce other peroxide generated to save selenium, reduce the impact of selenium deficiency; hvitamin E also relates to normal phosphorylation reactions, such as the synthesis of vitamin C, pantothenic acid synthesis as well as the sulfur-containing amino acids and vitamin B12 metabolism.

Vitamin H is also called the biotin, many foods were containing biotin, such as liver, yeast, egg yolk, whole grains, legumes, nuts, dairy products, it can not be directly absorbed by human body, through enzyme separation, can be absorbed by the body, can help to conversion of lactate into glucose, and assist cell DNA synthesis, researches by cosmetic raw material suppliers show that biotin can maintain the hair and skin health, prevent hair loss, skin inflammation and eczema phenomenon, can prevent anemia, make you have a beautiful complexion.

In vivo, biotin with coenzyme form widely involved in carbohydrate, lipid and protein metabolism. For example, pyruvate carboxylation, amino acid deamination, purine and the synthesis of essential fatty acid. Acoording to biotin supplier, biotin deficiency is generally performed for poor growth, dermatitis and hair or feathers fall.

Vitamin B12 in vivo is mainly in deoxyadenosyl cobalamin and mecobalamin two coenzyme form to participate in a variety of metabolic activity, such as allopurinol and porphyrin and synthesis, methyl transfer, protein synthesis by amino acid and carbohydrate and fat metabolism. And two important functions witch is closely related to the deficiency is to promote the red cells in the formation and maintenance of the intact nervous system. Vitamin B12 deficiency will cause ruminant animal rumen fermentation products propionic acid metabolic disorders. This is the basic metabolic damage produced by ruminant animal vitamin B12 deficiency.

Source:http://www.cosprm.com