Stabilizing effect of citrate buffer on the photolysis of riboflavin in aqueous solution

Results in Pharma Sciences

Volumn 1, Issue 1, 2011, Pages 11-15

  Ahmad, Iqbal ^a   Sheraz, Muhammad Ali ^a   Ahmed, Sofia ^a   Kazi, Sadia Hafeez ^a   Mirza, Tania ^a   Aminuddin, Mohammad ^a  

^a BAQAI MEDICAL UNIVERSITY   (Pakistan)

Author keywords

Citrate buffer; Fluorescence; Kinetics; Photolysis; Riboflavin; Spectrophotometric assay

Indexed keywords

CITRIC ACID; RIBOFLAVIN;

AQUEOUS SOLUTION; ARTICLE; CHEMICAL STRUCTURE; CONTROLLED STUDY; FLUORESCENCE; PH; PHOTOLYSIS; PRIORITY JOURNAL; SPECTROPHOTOMETRY;

EID: 80052651873     PISSN: None     EISSN: 22112863     Source Type: Journal    
DOI: 10.1016/j.rinphs.2011.06.002     Document Type: Article

References (38)

1. Ahmad I., Rapson H.D.C. Multicomponent spectrophotometric assay of riboflavin and photoproducts. J Pharm Biomed Anal 1990, 8:217-223.
2. Ahmad I., Tollin G. Solvent effects on flavin electron transfer reactions. Biochemistry 1981, 20:5925-5928.
3. Ahmad I., Vaid F.H.M. Photochemistry of flavins in aqueous and organic solvents. Flavins photochemistry and photobiology 2006, 13-40. Royal Society of Chemistry, Cambridge. E. Silva, A.M. Edwards (Eds.).
4. Ahmad I., Fasihullah Q., Vaid F.H.M. A study of simultaneous photolysis and photoaddition reactions of riboflavin in aqueous solution. J Photochem Photobiol B: Biol 2004, 75:13-20.
5. Ahmad I., Fasihullah Q., Vaid F.H.M. Effect of phosphate buffer on photodegradation reactions of riboflavin in aqueous solution. J Photochem Photobiol B: Biol 2005, 78:229-234.
6. Ahmad I., Fasihullah Q., Vaid F.H.M. Effect of light intensity and wavelengths on photodegradation reactions of riboflavin in aqueous solution. J Photochem Photobiol B: Biol 2006, 82:21-27.
7. Ahmad I., Fasihullah Q., Vaid F.H.M. Photolysis of formylmethylflavin in aqueous and organic solvents. Photochem Photobiol Sci 2006, 5:680-685.
8. Ahmad I., Rapson H.D.C., Heelis P.F., Phillips G.O. Alkaline hydrolysis of 7,8-dimethyl-10 (formylmethyl) isoalloxazine. A kinetic study. J Org Chem 1980, 45:731-733.
9. Ahmad I., Ahmed S., Sheraz M.A., Vaid F.H.M. Effect of borate buffer on the photolysis of riboflavin in aqueous solution. J Photochem Photobiol B: Biol 2008, 93:82-87.
10. Ahmad I., Fasihullah Q., Noor A., Ansari I.A., Ali Q.N.M. Photolysis of riboflavin in aqueous solution: a kinetic study. Int J Pharm 2004, 280:199-208.
11. Ahmad I., Ahmed S., Sheraz M.A., Aminuddin M., Vaid F.H.M. Effect of caffeine complexation on the photolysis of riboflavin in aqueous solution: a kinetic study. Chem Pharm Bull 2009, 57:1363-1370.
12. Ahmad I., Ahmed S., Sheraz M.A., Vaid F.H.M., Ansari I.A. Effect of divalent anions on photodegradation kinetics and pathways of riboflavin in aqueous solution. Int J Pharm 2010, 390:174-182.
13. Cairns W.L., Metzler D.E. Photochemical degradation of flavins. VI. A new photoproduct and its use in studying photolytic mechanism. J Am Chem Soc 1971, 93:2772-2777.
14. Carney C.F. Solution stability of ciclosidomine. J Pharm Sci 1987, 76:393-397.
15. Carstensen J.T. Kinetic pH profiles. Drug stability principles and practices 2000, 73-84. Marcel Dekker, New York. 3rd ed. J.T. Carstensen, C.T. Rhodes (Eds.).
16. Chen C.M., Coppola W.P., Johns W.H., Bogardus J.B., Lipper R.A. Degradation kinetics and mechanism of N-6-[(dimethylamino) methylene] mitomycin C in aqueous solutions. J Pharm Sci 1986, 75:208-210.
17. Fall H.H., Petering H.G. Metabolic inhibitors. 1. 6.7-Dimethyl-9-formylmethylisoalloxazine, 6,7-dimethyl-9-(2-hydroxyethyl)-isoalloxazine and derivatives. J Am Chem Soc 1956, 78:377-381.
18. Florence A.T., Attwood D. Physicochemical principles of pharmacy 2006, Pharmaceutical Press, London, p. 113-8. 4th ed.
19. 2 photolysis. V. The photolytic formation of 6,7-dimethylflavin-9-acetic acid ester from riboflavin. Vitamins (Kyoto) 1954, 7:939-943.
20. Gu L.C., Erdos E.A., Chiang H.S., Calderwood T., Tsai K., Visor G.C., Duffy J., Hsu W.C., Foster L.C. Stability of interleukin 1 beta (IL-1 beta) in aqueous solution: analytical methods, kinetics, products and solution formulation implications. Pharm Res 1991, 8:485-490.
21. Hatchard C.G., Parker C.A. A new sensitive chemical actinometer. II. Potassium ferrioxalate as a standard chemical actinometer. Proc R Soc (Lond) A 1956, 235:518-536.
22. Heelis P.F. The photophysical and photochemical properties of flavins (isoalloxazines). Chem Soc Rev 1982, 11:15-39.
23. Heelis P.F. The photochemistry of flavins. Chemistry and biochemistry of flavoenzymes 1991, vol. 1:171-193. CRC Press, Boca Raton (FL).
24. Heelis P.F., Phillips G.O., Ahmad I., Rapson H.D.C. The photodegradation of formylmethylflavin-a steady state and laser flash photolysis study. Photobiochem Photobiophys 1980, 1:125-130.
25. Hou J.P., Poole J.W. Kinetics and mechanism of degradation of ampicillin in solution. J Pharm Sci 1969, 58:447-454.
26. Lachman L., DeLuca P., Akers M.J. Kinetic principles and stability testing. The theory and practice of industrial pharmacy 1986, 768-769. Lea & Febiger, Philadelphia. 3rd ed. L. Lachman, H.A. Lieberman, J.L. Kanig (Eds.).
27. Laidler K.J. Chemical kinetics 1987, Harper & Row, New York, p. 279-80, 384-99. 3rd ed.
28. Meakin B.J., Stevens J., Davies D.J.G. The effect of drug concentration on the thermal (dark) degradation of promethazine in aqueous solution. J Pharm Pharmacol 1978, 30:75-80.
29. Murray J.B., Al-Shora H.I. Stability of cocaine in aqueous solution. J Clin Pharm Ther 1978, 3:1-6.
30. Schuman Jorns M., Schollnhammer G., Hemmerich P. Intramolecular addition of the riboflavin side chain. Anion-catalysed neutral photochemistry. Eur J Biochem 1975, 57:35-48.
31. Schwartz M.A., Buckwalter F.H. Pharmaceutics of Penicillin. J Pharm Sci 1962, 51:1119-1127.
32. Sinko P.J. Martin's physical pharmacy and pharmaceutical sciences 2006, Lippincott Williams & Wilkins, Baltimore, p. 406-7, 416-20. 5th ed.
33. Song P.S., Metzler D.E. Photochemical degradation of flavins. IV. Studies of the anaerobic photolysis of riboflavin. Photochem Photobiol 1967, 6:691-709.
34. Tsuji A., Nakashima E., Deguchi Y., Nishide K., Shimizu T., Horiuchi S., Ishikawa K., Yamana T. Degradation kinetics and mechanism of aminocephalosporins in aqueous solution: cefadroxil. J Pharm Sci 1981, 70:1120-1128.
35. a values of some prototropic functions in mitomycin and porfiromycin. J Pharm Sci 1983, 72:553-556.
36. Windheuser J.J., Higuchi T. Kinetics of thiamine hydrolysis. J Pharm Sci 1962, 51:354-364.
37. Yoshioka S., Stella V.J. Stability of drugs and dosage forms 2000, Kluwer Academic/Plenum Publishers, New York, p. 97-9.
38. Zia H., Teharan M., Zargarbashi R. Kinetics of carbenicillin degradation in aqueous solution. Can J Pharm Sci 1974, 9:112-117.