Riboflavin By Eric De Oliveira David Millstone Jessica
Riboflavin! By: Eric De. Oliveira, David Millstone, Jessica Nolasco, Leutrim Rexhaj, Allen On
Riboflavin- The Other B vitamin Also known as Vitamin B 2 n Apart of the Ribose and Flavin groups n Its molecular formula is C 17 H 20 N 4 O 6 n
WHATS IT DOOO!! It’s a key part of Flavin mononucleotides and Flavin adenine dinucleotide (FAD) n These are key cofactors that are involved in many metabolic processes n These include the metabolism of fat, protein and carbohydrates and reduction-oxidation reactions n Tidbit: Is destroyed by sunlight n
Food Sources of Riboflavin n A variety of sources n Every food group n Mostly low concentrations
The Best Sources n Liver Milk Products
Toxic n n -No amount of riboflavin is currently known to induce toxicity -It is a water soluble vitamin that, in excess, is excreted in urine -Toxic quantities of riboflavin could in theory be injected directly into the blood, however any large amount ingested orally is not absorbed into the body -Very high doses may induce itching, numbness, burning or prickling sensations, bright yellow urine and sensitivity to light
Riboflavin Deficiency n n n Riboflavin deficiency is known as ariboflavinosis Riboflavin is continually excreted in urine, making deficiency relatively common (esp. if you consume the minimum needed. ) Primary Deficiency- poor vitamin intake Secondary Deficiency- intestine has problems absorbing the vitamin; the body being unable to use the vitamin or excessive excretion from the body.
Riboflavin Deficiency n n n n n Symptoms of Ariboflavinosis inflammation of the lining of mouth and tongue mouth ulcers, cracks at the corners of the mouth sore throat dry and scaling skin fluid in the mucous membranes iron-deficiency anemia bloodshot eyes; may also become itchy, watery and sensitive to bright light.
RDA’s Infants (0 -1)…………………. 3 -. 4 mg/day n Children (1 -8)……………… . 5 -. 6 mg/day n Males (9 -13)…………………. 9 mg/day n Females (9 -13)………………. 9 mg/day n Males (14 and up)…………… 1. 3 mg/day n Females (14 and up)………… 1. 1 mg/day n Pregnancy…………. . 1. 4 mg/day n Lactation……………. 1. 6 mg/day n
Bibliography n n n http: //www. vitamins-supplements. org/vitamin-B 2 -riboflavin. php Unna, Klaus and Greslin, Joseph G. (1942). "Studies on the toxicity and pharmacology of riboflavin". J Pharmacol Exp Ther 76 (1): 75– 80. Whitney, Eleanor Noss, and Sharon Rady Rolfes. Understanding Nutrition With Infotrac, Ninth Edition. Boston: Wadsworth Company, 2002. Print. http: //www. fda. gov/Food/Labeling. Nutrition/Food. Labeling. Guida nce. Regulatory. Information/Regulations. Federal. Register. Document s/ucm 073531. htm http: //www. vitamin-update. com/definition. cfm/id/7. html
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