Publications by authors named "Aisha Noreen"
Riboflavin (RF) sensitized photooxidation of pyridoxine HCl (PD) in the pH range of 2.0-12.0 has been carried out under UV and visible irradiation in aerobic and anaerobic conditions.
View Article and Find Full Text PDFAscorbic acid assisted photodegradation of methylcobalamin using corrective irrelevant absorption spectrophotometric assay: A kinetic study.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Article Synopsis
- Photodegradation of drug substances can produce both known and unknown products that interfere with analytical results due to absorption at certain wavelengths.
- The study focuses on improving the accuracy of measurements for methylcobalamin (MC) and hydroxocobalamin by applying linear and non-linear methods to correct for irrelevant absorbances during photolytic degradation involving ascorbic acid (AH).
- Methylcobalamin shows first-order degradation kinetics, with the degradation rate being pH-dependent; it peaks at pH 5.0 when in the presence of ascorbic acid, whereas degradation slows down in more alkaline conditions.
Riboflavin (vitamin B) sensitized photooxidation of ascorbic acid (vitamin C): A kinetic study.
Spectrochim Acta A Mol Biomol Spectrosc
March 2024
Ascorbic acid (AH) photoxidation sensitized by riboflavin (RF) has been studied between pH 2.0 and 12.0 in ambient air and anaerobic environment using UV and visible irradiation sources.
View Article and Find Full Text PDFBackground: Widespread use of antibiotics as growth promoters and prophylactic agents has dramatic consequences for the development of antibiotic resistance. In this study, we investigated effects of selected antibiotics on bacterial biofilms and performed extensive antibiotic and VF profiling of poultry-meat associated E. coli strains.
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