Riboflavin flavins

C. Andres-Lacueva, F. Mattivi and D. Tonon, Determination of riboflavin, flavin mononucleotide and flavin-adenin dinucleotide in wine and other beverages by high-performance liquid chromatography with fluorescence detection. J. Chromatogr.A 823 (1998) 355-363. 

Riboflavin Flavin mononucleotide Flavin adenine dinucleotide... 

LF Russell, JT Vanderslice. Non-degradative extraction and simultaneous quantitation of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in foods by HPLC. Food Chem 43 151-162, 1992. 

The content of riboflavine, flavine mononucleotide, and adenine flavine dinucleotide has been determined in 23 microorganisms.i ... 

Hustad S, McKinley MC, McNulty H, Schneede J, Strain fJ, Scott JM, Ueland PM. Riboflavin, flavin mononucleotide, and flavin adenine dinudeotide in human plasma and erythrocytes at baseline and after low-dose riboflavin supplementation. Clin Chem 2002 48 1571-7. 

Perez-Ruiz T, Martinez-Lozano C, Sanz A, Bravo E. Determination of riboflavin, flavin mononucletide and flavin adenine dinucleotide in biological tissues by capillary zone electrophoresis and laser-induced fluorescence detection. Electrophoresis 2001 22 1170-4. 

FIGURE 15.4 The structures of riboflavin, flavin mononucleotide (FMN), and flavin adenine dinucleotide (FAD). Even in organisms that rely on the nicotinamide coenzymes (NADH and NADPH) for many of their oxidation-reduction cycles, the flavin coenzymes fill essential roles. Flavins are stronger oxidizing agents than NAD and NADP. They can be reduced by both one-electron and two-electron pathways and can be reoxidized easily by molecular oxygen. Enzymes that use flavins to carry out their reactions—flavoenzymes—are involved in many kinds of oxidation-reduction reactions. 

Flavins (El) catalyze many different bioreactions of physiological importance [7-9]. Riboflavin, flavin mononucleotide (FMN), and flavin adenine dinucleotide (FAD) have the 7,8-dimethyl isoalloxazine ring in common but differ in the side chain attached to NIO. With their five redox states, fully oxidized, one-electron reduced semiquinoid (F1H and F1 ), and fully reduced hydroquinone (FIH2 and F1H ), flavins are involved in one-electron and two-electron transfer reactions [10]. 

Riboflavin, flavin Glycosaminoglycan monosaccharides E. coli K4 polysaccharide... 

Riboflavin, flavin mononucleotide in wines, milk, yoghurt, and raw eggs Vitamin C in Lupinus albus L. var. Multolupa... 

Cataldi, T. R. L, Nardiello, D., De Benedetto, G. E., and Bufo, S. A., Optimizing separation eonditions for riboflavin, flavin mononueleotide and flavin adenine dinucleotide in capillary zone eleelrophoresis with laser-indueed fluoreseenee deteetion, J. Chromatogr. A, 968, 229, 2002. 

Hampel, D., York, E., and Allen, L. 2012. Ultra-performance hquid chromatography tandem mass-spectrometry (UPLC-MS/MS) for the rapid, simultaneous analysis of thiamin, riboflavin, flavin adenine dinucleotide, nicotinamide and pyridoxal in human milk. J. Chromatogr. B. 903 7-13. 

Riboflavin, flavin mononucleotide, and flavin-adenine dinucleotide, precursors to skuny odors in some beverages, were determined from a direct sample injection. These compounds were separated on a C,g column (A = 265 nm, ex 525 nm, em) in 9min using a complex 8-min 95/5 5/95 water (50 mM NaH2P04 to pH 3.0 with... 

Riboflavin Flavin adenine dinucleotide (FAD) Hydrogen carrier... 

Figure 6.1 Structures of riboflavin, flavin mononucleotide and flavin dinucleotide.

Lu, C.Y., Lin, W.Z., Wang, W.F., Han, Z.H., Zheng, Z.D., and Yao, S.D., 2000. Kinetic observation of rapid electron transfer between pyrimidine electron adducts and sensitizers of riboflavin, flavin adenine dinucleotide (FAD) and chloranil a pulse radiolysis study. Radiation Physics and Chemistry. 59 61-66. 

Andres-Lacueva, C., Mattivi, F., and Tonon, D., 1998. Determination of riboflavin, flavin mononucleotide and flavin-adenine dinucleotide in wine... 

Figure 36.1 Mutual transformations of riboflavin analogues naturally occurring in the body. The flgure presents mutual conversions of riboflavin, flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) which occur during the absorption of the vitamin in the mammalian intestinal tract.

Non- oxidative branch Pentose-5 -Phosphates Ribose-5-P 2 deoxy ribose-5-P 5 -phosphoribosyl-1 -pyrophosphate (PRPP) i) Structural components of nucleotides a. Basal structural component of RNA b. Basal structural component of DNA c. Precursor of both de novo and salvage synthesis of nucleotides ii) Intermediate products of purine metabolism and act as precursor molecules of cofactors, e g., riboflavin, flavin mononucleotide (FMN), flavin adenine di nucleotide (FAD) iii) Precursor of the amino acid. Histidine. 

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