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Negarian M, Mohammadinejad A, Mohajeri SA. Preparation, evaluation and application of core–shell molecularly imprinted particles as the sorbent in solid-phase extraction and analysis of lincomycin residue in pasteurized milk. Food Chem 2019; 288:29-38. [DOI: 10.1016/j.foodchem.2019.02.087] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 01/19/2023]
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Kurbanoglu S, Karsavurdan O, Ozkan SA. Recent Advances on Drug Analyses Using Ultra Performance Liquid Chromatographic Techniques and their Application to the Biological Samples. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180423152612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Introduction:
Ultra-Performance Liquid Chromatographic (UPLC) method enables analyst
to establish an analysis at higher pressure than High Performance Liquid Chromatographic (HPLC)
method towards liquid chromatographic methods. UPLC method provides the opportunity to study a
higher pressure compared to HPLC, and therefore smaller column in terms of particle size and internal
diameter are generally used in drug analysis. The UPLC method has attracted gradually due to its advantages
such as short analysis time, the small amount of waste reagents and the significant savings in
the cost of their destruction process. In this review, the recent selected studies related to the UPLC
method and its method validation are summarized. The drug analyses and the results of the studies
which were investigated by UPLC method, with certain parameters from literature are presented.
Background:
Quantitative determination of drug active substances by High-Performance Liquid
Chromatography (HPLC) from Liquid Chromatography (LC) methods has been carried out since the
1970's with the use of standard analytical LC methods. In today's conditions, rapid and very fast even
ultra-fast, flow rates are achieved compared to conventional HPLC due to shortening analysis times,
increasing method efficiency and resolution, reducing sample volume (and hence injection volume),
reducing waste mobile phase. Using smaller particles, the speed and peak capacity are expanding to
new limit and this technology is named as Ultra Performance Liquid Chromatography. In recent years,
as a general trend in liquid chromatography, ultra-performance liquid chromatography has taken the
place of HPLC methods. The time of analysis was for several minutes, now with a total analysis time
of around 1-2 minutes. The benefits of transferring HPLC to UPLC are much better understood when
considering the thousands of analyzes performed for each active substance, in order to reduce the cost
of analytical laboratories where relevant analysis of drug active substances are performed without
lowering the cost of research and development activities.
Methods:
The German Chemist Friedrich Ferdinand Runge, proposed the use of reactive impregnated
filter paper for the identification of dyestuffs in 1855 and at that time the first chromatographic method
in which a liquid mobile phase was used, was reviewed. Christian Friedrich Chönbein, who reported
that the substances were dragged at different speeds in the filter paper due to capillary effect, was
followed by the Russian botanist Mikhail S. Tswet, who planted studies on color pigment in 1906.
Tswet observes the color separations of many plant pigments, such as chlorophyll and xanthophyll
when he passes the plant pigment extract isolated from plant through the powder CaCO3 that he filled
in the glass column. This method based on color separation gives the name of "chromatographie"
chromatography by using the words "chroma" meaning "Latin" and "graphein" meaning writing.
Results and Conclusion:
Because the UPLC method can be run smoothly at higher pressures than the
HPLC method, it offers the possibility of analyzing using much smaller column sizes and column diameters.
Moreover, UPLC method has advantages, such as short analysis time, the small amount of
waste reagents and the significant savings in the cost of their destruction process. The use of the
UPLC method especially analyses in biological samples such as human plasma, brain sample, rat
plasma, etc. increasingly time-consuming due to the fact that the analysis time is very short compared
to the HPLC, because of the small amount of waste analytes and the considerable savings in their cost.
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Affiliation(s)
- Sevinc Kurbanoglu
- Faculty of Pharmacy, Department of Analytical Chemistry, Ankara University, Ankara, Turkey
| | - Ozer Karsavurdan
- Faculty of Pharmacy, Department of Analytical Chemistry, Ankara University, Ankara, Turkey
| | - Sibel A. Ozkan
- Faculty of Pharmacy, Department of Analytical Chemistry, Ankara University, Ankara, Turkey
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Leng Y, Hu F, Ma C, Du C, Ma L, Xu J, Lin Q, Sang Z, Lu Z. Simple, rapid, sensitive, selective and label-free lincomycin detection by using HAuCl4and NaOH. RSC Adv 2019; 9:28248-28252. [PMID: 35530481 PMCID: PMC9071102 DOI: 10.1039/c9ra04095a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/02/2019] [Indexed: 11/21/2022] Open
Abstract
A simple, rapid, sensitive, selective and label-free method is presented for the colorimetric determination of lincomycin (Lin) by using HAuCl4and NaOH.
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Affiliation(s)
- Yumin Leng
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Fang Hu
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- China
| | - Chunhua Ma
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Chenxi Du
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Linfeng Ma
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Jiao Xu
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Qiyuan Lin
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Zhipei Sang
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- China
| | - Zhiwen Lu
- College of Physics and Electronic Engineering
- Nanyang Normal University
- Nanyang 473061
- China
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A simple microdroplet chip consisting of silica nanochannel-assisted electrode and paper cover for highly sensitive electrochemiluminescent detection of drugs in human serum. Anal Chim Acta 2017; 983:96-102. [DOI: 10.1016/j.aca.2017.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/14/2017] [Accepted: 06/15/2017] [Indexed: 11/18/2022]
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Anodic Voltammetric Behavior of Lincomycin and its Electroanalytical Determination in Pharmaceutical Dosage form and Urine at Gold Electrode. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-2015-0745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The anodic voltammetric behavior of an antibiotic drug, lincomycin hydrochloride (LIN) at gold electrode (GE) has been investigated using cyclic and linear sweep voltammetry. The dependence of the current on pH, concentration and scan rate were investigated to optimize the experimental conditions for the determination of lincomycin. The anodic peak was characterized and the process was adsorption-controlled. The number of electrons transferred in the oxidation process was calculated. In the range of 8.0×10−6 to 1.0×10−4 M, the current measured by linear sweep voltammetry presents a good linear property as a function of the concentration of lincomycin with a detection limit of 1.7×10−7 M with good selectivity and sensitivity. The proposed method was successfully applied to lincomycin determination in pharmaceutical dosage form and in urine as a real sample. This method can be employed in clinical analysis, quality control and routine determination of drugs in pharmaceutical formulations.
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6
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Cao S, Song S, Liu L, Kong N, Kuang H, Xu C. Comparison of an Enzyme-Linked Immunosorbent Assay with an Immunochromatographic Assay for Detection of Lincomycin in Milk and Honey. Immunol Invest 2016; 44:438-50. [PMID: 26107744 DOI: 10.3109/08820139.2015.1021354] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
An enzyme-linked immunosorbent assay (ELISA) and an immunochromatographic assay were constructed for the detection of lincomycin (LIN) in both milk and honey samples based on the monoclonal antibody named 5F6. The half-maximum inhibition of ELISA was 0.3 ng/mL after optimizing pH and ionic strength conditions; the limit of detection was 0.07 ng/mL. The cross-reactivity with clindamycin was 0.6%. LIN recovery in spiked milk and honey samples ranged from 84.6% to 115.6% with intra-assay coefficient variations of 1.7-25.4% and inter-assay coefficient variations of 2.7-8.9%. The detection limits were estimated as 2.1 µg/L for milk and 2.1 µg/kg for honey samples. The immunochromatographic assay revealed a LIN cut-off value of 10 ng/mL in PBS, 5 ng/mL in milk, and 120 ng/g in honey, and a visual lower detection limit of 2.5 ng/mL, 1 ng/mL and 30 ng/g in PBS, milk and honey, respectively. The immunochromatographic assay is preferred for large-scale practical application for its simpler pretreatment and satisfied sensitivity compared with ELISA assay.
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Affiliation(s)
- Shanshan Cao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi, JiangSu , People's Republic of China
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Jiraskova P, Gazak R, Kamenik Z, Steiningerova L, Najmanova L, Kadlcik S, Novotna J, Kuzma M, Janata J. New Concept of the Biosynthesis of 4-Alkyl-L-Proline Precursors of Lincomycin, Hormaomycin, and Pyrrolobenzodiazepines: Could a γ-Glutamyltransferase Cleave the C-C Bond? Front Microbiol 2016; 7:276. [PMID: 27014201 PMCID: PMC4780272 DOI: 10.3389/fmicb.2016.00276] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/19/2016] [Indexed: 11/18/2022] Open
Abstract
Structurally different and functionally diverse natural compounds – antitumour agents pyrrolo[1,4]benzodiazepines, bacterial hormone hormaomycin, and lincosamide antibiotic lincomycin – share a common building unit, 4-alkyl-L-proline derivative (APD). APDs arise from L-tyrosine through a special biosynthetic pathway. Its generally accepted scheme, however, did not comply with current state of knowledge. Based on gene inactivation experiments and in vitro functional tests with recombinant enzymes, we designed a new APD biosynthetic scheme for the model of lincomycin biosynthesis. In the new scheme at least one characteristic in each of five final biosynthetic steps has been changed: the order of reactions, assignment of enzymes and/or reaction mechanisms. First, we demonstrate that LmbW methylates a different substrate than previously assumed. Second, we propose a unique reaction mechanism for the next step, in which a putative γ-glutamyltransferase LmbA indirectly cleaves off the oxalyl residue by transient attachment of glutamate to LmbW product. This unprecedented mechanism would represent the first example of the C–C bond cleavage catalyzed by a γ-glutamyltransferase, i.e., an enzyme that appears unsuitable for such activity. Finally, the inactivation experiments show that LmbX is an isomerase indicating that it transforms its substrate into a compound suitable for reduction by LmbY, thereby facilitating its subsequent complete conversion to APD 4-propyl-L-proline. Elucidation of the APD biosynthesis has long time resisted mainly due to the apparent absence of relevant C–C bond cleaving enzymatic activity. Our proposal aims to unblock this situation not only for lincomycin biosynthesis, but generally for all above mentioned groups of bioactive natural products with biotechnological potential.
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Affiliation(s)
- Petra Jiraskova
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Radek Gazak
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Zdenek Kamenik
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Lucie Steiningerova
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Lucie Najmanova
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Stanislav Kadlcik
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Jitka Novotna
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Marek Kuzma
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
| | - Jiri Janata
- Institute of Microbiology - Academy of Sciences of the Czech Republic Prague, Czech Republic
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8
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Bauer J, Ondrovičová G, Najmanová L, Pevala V, Kameník Z, Koštan J, Janata J, Kutejová E. Structure and possible mechanism of the CcbJ methyltransferase from Streptomyces caelestis. ACTA ACUST UNITED AC 2014; 70:943-57. [PMID: 24699640 DOI: 10.1107/s139900471303397x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 12/16/2013] [Indexed: 11/10/2022]
Abstract
The S-adenosyl-L-methionine (SAM)-dependent methyltransferase CcbJ from Streptomyces caelestis catalyzes one of the final steps in the biosynthesis of the antibiotic celesticetin, methylation of the N atom of its proline moiety, which greatly enhances the activity of the antibiotic. Since several celesticetin variants exist, this enzyme may be able to act on a variety of substrates. The structures of CcbJ determined by MAD phasing at 3.0 Å resolution, its native form at 2.7 Å resolution and its complex with S-adenosyl-L-homocysteine (SAH) at 2.9 Å resolution are reported here. Based on these structures, three point mutants, Y9F, Y17F and F117G, were prepared in order to study its behaviour as well as docking simulations of both CcbJ-SAM-substrate and CcbJ-SAH-product complexes. The structures show that CcbJ is a class I SAM-dependent methyltransferase with a wide active site, thereby suggesting that it may accommodate a number of different substrates. The mutation results show that the Y9F and F117G mutants are almost non-functional, while the Y17F mutant has almost half of the wild-type activity. In combination with the docking studies, these results suggest that Tyr9 and Phe117 are likely to help to position the substrate for the methyl-transfer reaction and that Tyr9 may also facilitate the reaction by removing an H(+) ion. Tyr17, on the other hand, seems to operate by helping to stabilize the SAM cofactor.
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Affiliation(s)
- Jacob Bauer
- Institute of Molecular Biology, Slovak Academy of Sciences, 851 45 Bratislava, Slovakia
| | - Gabriela Ondrovičová
- Institute of Molecular Biology, Slovak Academy of Sciences, 851 45 Bratislava, Slovakia
| | - Lucie Najmanová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20 Prague, Czech Republic
| | - Vladimír Pevala
- Institute of Molecular Biology, Slovak Academy of Sciences, 851 45 Bratislava, Slovakia
| | - Zdeněk Kameník
- Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20 Prague, Czech Republic
| | - Július Koštan
- Department for Structural and Computational Biology, Max F. Perutz Laboratories, University of Vienna, A-1030 Vienna, Austria
| | - Jiří Janata
- Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20 Prague, Czech Republic
| | - Eva Kutejová
- Institute of Molecular Biology, Slovak Academy of Sciences, 851 45 Bratislava, Slovakia
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Tölgyesi A, Fekete J, Fekete S, Sharma VK, Békési K, Tóth E. Analysis of sub μg/kg lincomycin in honey, muscle, milk, and eggs using fast liquid chromatography-tandem mass spectrometry. J Chromatogr Sci 2012; 50:190-8. [PMID: 22337795 DOI: 10.1093/chromsci/bmr046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A fast liquid chromatography-tandem mass spectrometry (LC-MS-MS) method is developed to determine lincomycin (LM) in honey, muscle, milk, and egg. Samples are cleaned-up at pH 4.7 using Strata-X-C mixed-mode polymeric strong cation exchange solid-phase extraction (SPE) cartridges, which could selectively adsorb the lincomycin from matrices under the acidic condition. LM is separated on the recently introduced Kinetex XB core-shell type HPLC column using isocratic elution mode with a mobile phase containing 0.1% formic acid in water/acetonitrile (93/7, v/v, pH 2.6) at a flow rate of 0.7 mL/min. The subsequent MS/MS detection has decreased ion effect, which allows the limit of detection (LOD) of LM for honey to be 0.05 µg/kg for honey and 0.5 µg/kg for muscle, milk, and egg. These LODs are much lower than those reported previously. The other main advantage of the developed method is the analysis time of only 3.5 min, which is about three times shorter than other reported LC-MS-MS methods. Recoveries varies between 94.2% and 125.2% and in-house reproducibility ranges from 3.7% to 28.7%. The developed method is validated according to European Union (EU) Commission Decision 2002/657/EC using a matrix-comprehensive validation strategy. All studied analytical parameters fulfills the EU guidelines.
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Affiliation(s)
- Adám Tölgyesi
- Central Agricultural Office Food and Feed Safety Directorate, Food Toxicology National Reference Laboratory, Budapest, Hungary
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10
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Chen JZ, Chou GX, Yang L, Bligh SWA, Wang ZT. QUANTIFICATION OF NORISOBOLDINE IN LINDERAE RADIX BY ULTRA-PERFORMANCE LIQUID CHROMATOGRAPHY AND HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH UV DETECTION. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.608236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jian-Zhong Chen
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- b School of Pharmacy, Fujian University of Traditional Chinese Medicine , Fuzhou , China
| | - Gui-Xin Chou
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- c Shanghai R & D Centre for Standardization of Chinese Medicines , Shanghai , China
| | - Li Yang
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - S. W. Annie Bligh
- d Institute for Health Research and Policy, London Metropolitan University , London , UK
| | - Zheng-Tao Wang
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- c Shanghai R & D Centre for Standardization of Chinese Medicines , Shanghai , China
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11
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Sub-2?m porous silica materials for enhanced separation performance in liquid chromatography. J Chromatogr A 2012; 1228:99-109. [DOI: 10.1016/j.chroma.2011.08.085] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Revised: 08/28/2011] [Accepted: 08/29/2011] [Indexed: 11/20/2022]
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12
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Estella-Hermoso de Mendoza A, Imbuluzqueta I, Campanero M, Gonzalez D, Vilas-Zornoza A, Agirre X, Lana H, Abizanda G, Prosper F, Blanco-Prieto M. Development and validation of ultra high performance liquid chromatography–mass spectrometry method for LBH589 in mouse plasma and tissues. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3490-6. [DOI: 10.1016/j.jchromb.2011.09.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 09/13/2011] [Accepted: 09/16/2011] [Indexed: 10/17/2022]
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13
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Kameník Z, Hadacek F, Marečková M, Ulanova D, Kopecký J, Chobot V, Plháčková K, Olšovská J. Ultra-high-performance liquid chromatography fingerprinting method for chemical screening of metabolites in cultivation broth. J Chromatogr A 2010; 1217:8016-25. [DOI: 10.1016/j.chroma.2010.08.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 07/21/2010] [Accepted: 08/11/2010] [Indexed: 10/19/2022]
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Hu Y, Li G, Zhang Z. A flow injection chemiluminescence method for the determination of lincomycin in serum using a diperiodato-cuprate (III)-luminol system. LUMINESCENCE 2010; 26:313-8. [PMID: 22021244 DOI: 10.1002/bio.1230] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Revised: 06/14/2010] [Accepted: 06/20/2010] [Indexed: 11/09/2022]
Abstract
In this paper, the novel trivalent copper-periodate complex {K₅[Cu(HIO₆)₂], DPC} has been applied in a luminol-based chemiluminescence (CL) reaction. Coupled with flow injection (FI) technology, the FI-CL method was proposed for the determination of lincomycin hydrochloride. The CL reaction between luminol and DPC occurred in an alkaline medium. The CL intensity could be greatly enhanced by lincomycin hydrochloride. The relative CL intensity was proportional to the concentration of lincomycin hydrochloride in the range of 1 × 10⁻⁸ to 5 × 10⁻⁶ g mL⁻¹ and the detection limit was at the 3.5 × 10⁻⁹ g mL⁻¹ level. The relative standard deviation at 5 × 10⁻⁸ g mL⁻¹ was 1.7% (n = 9). The sensitive method was successfully applied to the direct determination of lincomycin hydrochloride (ng mL⁻¹) in serum. A possible mechanism of the lumonol-DPC CL reaction was discussed by the study of the CL kinetic characteristics and the spectra of CL reaction. The oxidability of DPC was studied by means of its electrochemical response.
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Affiliation(s)
- Yufei Hu
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang Xi Road, Guangzhou 510275, People's Republic of China
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15
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Yang C, Zhang Z, Shi Z. A novel chemiluminescence reaction system for the determination of lincomycin with diperiodatonickelate(IV). Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0293-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Comparative study of A HPLC–MS assay versus an UHPLC–MS/MS for anti-tumoral alkyl lysophospholipid edelfosine determination in both biological samples and in lipid nanoparticulate systems. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:4035-41. [DOI: 10.1016/j.jchromb.2009.10.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Revised: 10/06/2009] [Accepted: 10/19/2009] [Indexed: 11/20/2022]
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17
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Mutasynthesis of lincomycin derivatives with activity against drug-resistant staphylococci. Antimicrob Agents Chemother 2009; 54:927-30. [PMID: 19917754 DOI: 10.1128/aac.00918-09] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The lincomycin biosynthetic gene lmbX was deleted in Streptomyces lincolnensis ATCC 25466, and deletion of this gene led to abolition of lincomycin production. The results of complementation experiments proved the blockage in the biosynthesis of lincomycin precursor 4-propyl-L-proline. Feeding this mutant strain with precursor derivatives resulted in production of 4'-butyl-4'-depropyllincomycin and 4'-pentyl-4'-depropyllincomycin in high titers and without lincomycin contamination. Moreover, 4'-pentyl-4'-depropyllincomycin was found to be more active than lincomycin against clinical Staphylococcus isolates with genes determining low-level lincosamide resistance.
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18
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Cicchetti E, Chaintreau A. Quantitation of the main constituents of vanilla by reverse phase HPLC and ultra-high-pressure-liquid-chromatography with UV detection: Method validation and performance comparison. J Sep Sci 2009; 32:3043-52. [DOI: 10.1002/jssc.200900132] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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19
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Chiu MH, Yang HH, Liu CH, Zen JM. Determination of lincomycin in urine and some foodstuffs by flow injection analysis coupled with liquid chromatography and electrochemical detection with a preanodized screen-printed carbon electrode. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:991-4. [DOI: 10.1016/j.jchromb.2009.02.066] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Revised: 02/25/2009] [Accepted: 02/27/2009] [Indexed: 11/29/2022]
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20
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HPLC-fluorescence detection method for determination of key intermediates of the lincomycin biosynthesis in fermentation broth. Anal Bioanal Chem 2009; 393:1779-87. [DOI: 10.1007/s00216-009-2605-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 12/24/2008] [Accepted: 01/07/2009] [Indexed: 10/21/2022]
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21
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Yi A, Liu Z, Liu S, Hu X. Study on the interaction between palladium(II)-lincomycin chelate and erythosine by absorption, fluorescence and resonance Rayleigh scattering spectra and its analytical applications. LUMINESCENCE 2009; 24:23-9. [DOI: 10.1002/bio.1057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Sequence analysis and heterologous expression of the lincomycin biosynthetic cluster of the type strain Streptomyces lincolnensis ATCC 25466. Folia Microbiol (Praha) 2008; 53:395-401. [PMID: 19085073 DOI: 10.1007/s12223-008-0060-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 05/14/2008] [Indexed: 10/21/2022]
Abstract
A cosmid bearing an insert of 38 217 bp covering the gene cluster and its flanking regions of type strain Streptomyces lincolnensis ATCC 25466 was sequenced. Two relatively extensive sequence changes and several hundred point mutations were identified if compared with the previously published sequence of the lincomycin (Lin) industrial strain S. lincolnensis 78-11. Analysis of the cluster-flanking regions revealed its localization within the genome of the ATCC 25466 strain. The cluster-bearing cosmid was integrated into the chromosome of Lin non-producing strains S. coelicolor CH 999 and S. coelicolor M 145. The modified strains heterologously produced Lin but the level dropped to approximately 1-3% of the production in the ATCC 25466 strain.
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Lincomycin, rational selection of high producing strain and improved fermentation by amino acids supplementation. Bioprocess Biosyst Eng 2008; 32:521-9. [DOI: 10.1007/s00449-008-0272-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Accepted: 10/08/2008] [Indexed: 10/21/2022]
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Cabooter D, Lynen F, Sandra P, Desmet G. Turbulence as a Source of Excessive Baseline Noise during High-Speed Isocratic and Gradient Separations Using Absorption Detection. Anal Chem 2008; 80:1679-88. [DOI: 10.1021/ac701906j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Deirdre Cabooter
- Vrije Universiteit Brussel, Department of Chemical Engineering (CHIS-TW), and Pfizer Analytical Research Center, Universiteit Gent, Krijgslaan 281 S4-Bis, 9000 Gent, Belgium
| | - Frédéric Lynen
- Vrije Universiteit Brussel, Department of Chemical Engineering (CHIS-TW), and Pfizer Analytical Research Center, Universiteit Gent, Krijgslaan 281 S4-Bis, 9000 Gent, Belgium
| | - Pat Sandra
- Vrije Universiteit Brussel, Department of Chemical Engineering (CHIS-TW), and Pfizer Analytical Research Center, Universiteit Gent, Krijgslaan 281 S4-Bis, 9000 Gent, Belgium
| | - Gert Desmet
- Vrije Universiteit Brussel, Department of Chemical Engineering (CHIS-TW), and Pfizer Analytical Research Center, Universiteit Gent, Krijgslaan 281 S4-Bis, 9000 Gent, Belgium
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