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| Christ,Ana Paula; Machado,Mariana Souto; Ribas,Karla Giacomelli; Schwarzbold,Alexandre Vargas; Silva,Cristiane de Bona da; Adams,Andréa Inês Horn. |
| abstract Daptomycin (DPT) was the first lipopeptide antibiotic available for commercialization. It is active against gram-positive bacteria, including resistant strains. This work aimed to develop and validate a turbidimetric microbiologic assay to determine daptomycin in an injectable form. A 3x3 design was employed, at concentrations of 1, 2 and 4.0 µg/mL. The microorganism test used was Staphylococcus aureus ATCC 6538p, and Antibiotic Medium 3 was used as the culture medium. Method validation demonstrated that the bioassay was linear (r=0.9995), precise (RSD=2.58%), accurate (recovery 100.48± 2.11%), and robust. Degradation kinetics was also performed in an alkaline medium, indicating that daptomycin degradation follows first order kinetics under these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daptomycin/determination; Daptomycin injection/quality control; Turbidimetric microbiological assay/quantitative analysis.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000400775 |
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