Determination of the needed amount of liquid sterile Lactamator™ to be mixed to cephalexin, β-lactam antibiotic, for optimum deactivation of its molecule's antibacterial properties was conducted using RP-HPLC method. RP-HPLC method was validated for the parameters as linearity, accuracy, LOD, LOQ, and precision. Before the routine microbiological examination for any pharmaceutical dosage form containing β-lactam antibiotic, it is a must to make inactivate of β-lactam active pharmaceutical ingredient (API) by mixing with beta-lactamase before testing. So, the study indicated that mixing of 0.5 ml liquid sterile Lactamator™ with phosphate buffer solution pH (7.2) containing 50 mg cephalexin, with holding the test sample for 90 minutes prior to HPLC measurement will deactivation of cefalexin molecule's antibacterial properties.
Published in | World Journal of Applied Chemistry (Volume 2, Issue 4) |
DOI | 10.11648/j.wjac.20170204.11 |
Page(s) | 120-128 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2017. Published by Science Publishing Group |
Cephalexin, Lactamator, Keflex, Method Validation
[1] | Holten, K. B., Onusko, E. M. (2000) Appropriate prescribing of oral beta-lactam antibiotics, American Family Physician, 62(3): 611–620. |
[2] | Drawz, S. M., Bonomo, R. A. (2010) Three decades of β-lactamase inhibitors, Clinical Microbiology Reviews, 23(1): 160–201. |
[3] | Bush, K., Jacoby, G. A., Medeiros, A. A. (1995) A functional classification scheme for beta-lactamases and its correlation with molecular structure, Antimicrobial Agents and Chemotherapy, 39(6): 1211–1233. |
[4] | Ambler, R. P. (1980) The structure of beta-lactamases, Philosophical Transactions of the Royal Society B: Biological Sciences, 289(1036): 321–331. |
[5] | Bush, K., Jacoby, G. A. (2010) Updated functional classification of beta-lactamases, Antimicrobial Agents and Chemotherapy, 54 (3): 969–976. |
[6] | Philippon, A., Arlet, G., Jacoby, G. A. (2002) Plasmid-determined AmpC-type beta-lactamases, Antimicrobial Agents and Chemotherapy, 46 (1): 1–11. |
[7] | Jacoby, G. A., Munoz-Price, L. S. (2005) The new beta-lactamases, The New England Journal of Medicine, 352 (4): 380–391. |
[8] | Zhu, Y., Englebert, S., Joris, B., Ghuysen, J. M., Kobayashi, T., Lampen, J. O. (1992) Structure, function, and fate of the BlaR signal transducer involved in induction of beta-lactamase in Bacillus licheniformis, Journal of Bacteriology, 174: 6171–6178. |
[9] | Fuda, C. C., Fisher, J. F., Mobashery, S. (2005) Beta-lactam resistance in Staphylococcus aureus: the adaptive resistance of a plastic genome, Cellular and Molecular Life Sciences, 62: 2617–2633. |
[10] | Safo, M. K., Zhao, Q., Ko, T. P., Musayev, F. N., Robinson, H., Scarsdale, N. (2005) Crystal structures of the BlaI repressor from Staphylococcus aureus and its complex with DNA: insights into transcriptional regulation of the bla and mec operons Journal of Bacteriology, 187: 1833–1844. |
[11] | Ambler, R. P., Coulson, A. F. W., Frère, J. M., Ghuysen, J. M., Joris, B., Forsman, M., Levesque, R. C., Tiraby, G., Waley, S. G. (1991) A standard numbering scheme for the class A β-lactamases, Biochemical Journal, 276: 269–272. |
[12] | Jacobs, C., Frere, J. M., Normark, S. (1997) Cytosolic intermediates for cell wall biosynthesis and degradation control inducible beta-lactam resistance in gram-negative bacteria, Cell, 88: 823–832. |
[13] | Principles of Pharmacology, 2nd edition, (2011), New Delhi: Paras Medical Publishers. Penicillins, cephalosporins and other beta lactam antibiotics. In: Sharma HL, Sharma KK, editors; pp. 723–724. |
[14] | Sean, C. (2011) Martindale, The Extra Pharmacopoeia, 37th edition, The Pharmaceutical Press, London, pp. 237–238. |
[15] | Ronald, T. (2011) The United States Pharmacopeia and The National Formulary. USP 36, NF 31, Supplement 1 Asian Edition, Twinbork parkway, Rockville, pp. 1133–1229. |
[16] | International Conference on Harmonization, (1995), Draft guideline on validation of analytical procedures: Definitions and Terminology, Federal Register, 60, 11260. |
[17] | Murray, P. R., Baron, E. J., Pfaller, M. A., Tenover, F. C., Yolken, H. R. (1995) Manual of Clinical Microbiology, 6th edition, ASM Press, Washington DC, pp. 15–18. |
[18] | Olurinola, P. F. (1996) A laboratory manual of pharmaceutical microbiology, Idu, Abuja, Nigeria, pp. 69–105. |
[19] | Ronald, T. (2017) The United States Pharmacopeia and The National Formulary. USP 40, NF 35, Supplement 1 Asian Edition, Twinbork parkway, Rockville, pp. 123–130. |
APA Style
Mahmoud Faysal Mshref, Hesham Mohamed Ghonemy, Amr Helmy Ali. (2017). Determination of Beta-Lactamase Inactivation of Cephalexin by Validated RP-HPLC Method. World Journal of Applied Chemistry, 2(4), 120-128. https://doi.org/10.11648/j.wjac.20170204.11
ACS Style
Mahmoud Faysal Mshref; Hesham Mohamed Ghonemy; Amr Helmy Ali. Determination of Beta-Lactamase Inactivation of Cephalexin by Validated RP-HPLC Method. World J. Appl. Chem. 2017, 2(4), 120-128. doi: 10.11648/j.wjac.20170204.11
@article{10.11648/j.wjac.20170204.11, author = {Mahmoud Faysal Mshref and Hesham Mohamed Ghonemy and Amr Helmy Ali}, title = {Determination of Beta-Lactamase Inactivation of Cephalexin by Validated RP-HPLC Method}, journal = {World Journal of Applied Chemistry}, volume = {2}, number = {4}, pages = {120-128}, doi = {10.11648/j.wjac.20170204.11}, url = {https://doi.org/10.11648/j.wjac.20170204.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20170204.11}, abstract = {Determination of the needed amount of liquid sterile Lactamator™ to be mixed to cephalexin, β-lactam antibiotic, for optimum deactivation of its molecule's antibacterial properties was conducted using RP-HPLC method. RP-HPLC method was validated for the parameters as linearity, accuracy, LOD, LOQ, and precision. Before the routine microbiological examination for any pharmaceutical dosage form containing β-lactam antibiotic, it is a must to make inactivate of β-lactam active pharmaceutical ingredient (API) by mixing with beta-lactamase before testing. So, the study indicated that mixing of 0.5 ml liquid sterile Lactamator™ with phosphate buffer solution pH (7.2) containing 50 mg cephalexin, with holding the test sample for 90 minutes prior to HPLC measurement will deactivation of cefalexin molecule's antibacterial properties.}, year = {2017} }
TY - JOUR T1 - Determination of Beta-Lactamase Inactivation of Cephalexin by Validated RP-HPLC Method AU - Mahmoud Faysal Mshref AU - Hesham Mohamed Ghonemy AU - Amr Helmy Ali Y1 - 2017/09/13 PY - 2017 N1 - https://doi.org/10.11648/j.wjac.20170204.11 DO - 10.11648/j.wjac.20170204.11 T2 - World Journal of Applied Chemistry JF - World Journal of Applied Chemistry JO - World Journal of Applied Chemistry SP - 120 EP - 128 PB - Science Publishing Group SN - 2637-5982 UR - https://doi.org/10.11648/j.wjac.20170204.11 AB - Determination of the needed amount of liquid sterile Lactamator™ to be mixed to cephalexin, β-lactam antibiotic, for optimum deactivation of its molecule's antibacterial properties was conducted using RP-HPLC method. RP-HPLC method was validated for the parameters as linearity, accuracy, LOD, LOQ, and precision. Before the routine microbiological examination for any pharmaceutical dosage form containing β-lactam antibiotic, it is a must to make inactivate of β-lactam active pharmaceutical ingredient (API) by mixing with beta-lactamase before testing. So, the study indicated that mixing of 0.5 ml liquid sterile Lactamator™ with phosphate buffer solution pH (7.2) containing 50 mg cephalexin, with holding the test sample for 90 minutes prior to HPLC measurement will deactivation of cefalexin molecule's antibacterial properties. VL - 2 IS - 4 ER -