1
|
Proteomics Characterization of Food-Derived Bioactive Peptides with Anti-Allergic and Anti-Inflammatory Properties. Nutrients 2022; 14:nu14204400. [PMID: 36297084 PMCID: PMC9609859 DOI: 10.3390/nu14204400] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/30/2022] Open
Abstract
Bioactive peptides are found in foods and dietary supplements and are responsible for health benefits with applications in human and animal medicine. The health benefits include antihypertensive, antimicrobial, antithrombotic, immunomodulatory, opioid, antioxidant, anti-allergic and anti-inflammatory functions. Bioactive peptides can be obtained by microbial action, mainly by the gastrointestinal microbiota from proteins present in food, originating from either vegetable or animal matter or by the action of different gastrointestinal proteases. Proteomics can play an important role in the identification of bioactive peptides. High-resolution mass spectrometry is the principal technique used to detect and identify different types of analytes present in complex mixtures, even when available at low concentrations. Moreover, proteomics may provide the characterization of epitopes to develop new food allergy vaccines and the use of immunomodulating peptides to induce oral tolerance toward offending food allergens or even to prevent allergic sensitization. In addition, food-derived bioactive peptides have been investigated for their anti-inflammatory properties to provide safer alternatives to nonsteroidal anti-inflammatory drugs (NSAIDs). All these bioactive peptides can be a potential source of novel drugs and ingredients in food and pharmaceuticals. The following review is focused on food-derived bioactive peptides with antiallergic and anti-inflammatory properties and summarizes the new insights into the use of proteomics for their identification and quantification.
Collapse
|
2
|
Jones AD, Boundy-Mills KL, Barla GF, Kumar S, Ubanwa B, Balan V. Microbial Lipid Alternatives to Plant Lipids. Methods Mol Biol 2019; 1995:1-32. [PMID: 31148119 DOI: 10.1007/978-1-4939-9484-7_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lipids are in high demand in food production, nutritional supplements, detergents, lubricants, and biofuels. Different oil seeds produced from plants are conventionally extracted to yield lipids. With increasing population and reduced availability of cultivable land, conventional methods of producing lipids alone will not satisfy increasing demand. Lipids produced using different microbial sources are considered as sustainable alternative to plant derived lipids. Various microorganisms belonging to the genera of algae, bacteria, yeast, fungi, or marine-derived microorganisms such as thraustochytrids possess the ability to accumulate lipids in their cells. A variety of microbial production technologies are being used to cultivate these organisms under specific conditions using agricultural residues as carbon source to be cost competitive with plant derived lipids. Microbial oils, also known as single cell oils, have many advantages when compared with plant derived lipids, such as shorter life cycle, less labor required, season and climate independence, no use of arable land and ease of scale-up. In this chapter we compare the lipids derived from plants and different microorganisms. We also highlight various analytical techniques that are being used to characterize the lipids produced in oleaginous organisms and their applications in various processes.
Collapse
Affiliation(s)
- A Daniel Jones
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Kyria L Boundy-Mills
- Phaff Yeast Culture Collection, Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
| | - G Florin Barla
- Faculty of Food Engineering, University of Suceava, Suceava, Romania
- Tyton Biosciences, Danville, VA, USA
| | - Sandeep Kumar
- Department of Civil and Environmental Engineering, Old Dominion University, Norfolk, VA, USA
| | - Bryan Ubanwa
- Department of Engineering Technology, Biotechnology Program, College of Technology, University of Houston, Houston, TX, USA
| | - Venkatesh Balan
- Department of Engineering Technology, Biotechnology Program, College of Technology, University of Houston, Houston, TX, USA.
| |
Collapse
|
3
|
Kimlinger MJ, Martin RS. The Use of a 3D-Printed Microfluidic Device and Pressure Mobilization for Integrating Capillary Electrophoresis with Electrochemical Detection. ELECTROANAL 2018; 30:2241-2249. [PMID: 30930594 DOI: 10.1002/elan.201800367] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Capillary electrophoresis coupled with electrochemical detection can be a powerful analysis tool; however, previous methods developed to integrate these two techniques can often times be fragile and have alignment issues such that there are no commercially available approaches. In this paper, we present the use of a 3D-printed Wall-Jet Electrode device for integrating capillary electrophoresis with electrochemical detection. A pressure mobilization step was also utilized to further reduce noise by allowing the electrophoresis separation step to continue only until the first analyte was close to elution. Then, the separation voltage was terminated and pressure-based flow was used for elution of the analyte bands onto the electrode surface with a wall-jet configuration. It is shown that the pressure-based elution is beneficial for the reduction of baseline noise and elimination of field effects. A mixture of catecholamines were separated to demonstrate effectiveness of the system. In addition, the system was coupled with a Beckman Coulter commercial capillary electrophoresis instrument in a straightforward manner. The system was also shown to be effective in separations done with a high ionic strength physiological buffer. This 3D printing approach can be used by researchers to utilize electrochemical detection on commercial capillary electrophoresis systems by downloading the provided STL and/or CAD files.
Collapse
Affiliation(s)
- Melissa J Kimlinger
- Department of Chemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO 63103
| | - R Scott Martin
- Department of Chemistry, Saint Louis University, 3501 Laclede Ave, St. Louis, MO 63103
| |
Collapse
|
4
|
Jurowski K, Kochan K, Walczak J, Barańska M, Piekoszewski W, Buszewski B. Analytical Techniques in Lipidomics: State of the Art. Crit Rev Anal Chem 2017; 47:418-437. [PMID: 28340309 DOI: 10.1080/10408347.2017.1310613] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Current studies related to lipid identification and determination, or lipidomics in biological samples, are one of the most important issues in modern bioanalytical chemistry. There are many articles dedicated to specific analytical strategies used in lipidomics in various kinds of biological samples. However, in such literature, there is a lack of articles dedicated to a comprehensive review of the actual analytical methodologies used in lipidomics. The aim of this article is to characterize the lipidomics methods used in modern bioanalysis according to the methodological point of view: (1) chromatography/separation methods, (2) spectroscopic methods and (3) mass spectrometry and also hyphenated methods. In the first part, we discussed thin layer chromatography (TLC), high-pressure liquid chromatography (HPLC), gas chromatography (GC) and capillary electrophoresis (CE). The second part includes spectroscopic techniques such as Raman spectroscopy (RS), Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR). The third part is a synthetic review of mass spectrometry, matrix-assisted laser desorption/ionization (MALDI), hyphenated methods, which include liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC-MS) and also multidimensional techniques. Other aspects are the possibilities of the application of the described methods in lipidomics studies. Due to the fact that the exploration of new methods of lipidomics analysis and their applications in clinical and medical studies are still challenging for researchers working in life science, we hope that this review article will be very useful for readers.
Collapse
Affiliation(s)
- Kamil Jurowski
- a Kraków Higher School of Health Promotion , Krakow , Poland
| | - Kamila Kochan
- b Jagiellonian Centre for Experimental Therapeutics (JCET) , Jagiellonian University in Cracow , Cracow , Poland.,c Centre for Biospectroscopy and School of Chemistry , Monash University , Clayton , Victoria , Australia
| | - Justyna Walczak
- d Department of Environmental Chemistry and Bioanalytics , Faculty of Chemistry, Nicolaus Copernicus University , Torun , Poland
| | - Małgorzata Barańska
- b Jagiellonian Centre for Experimental Therapeutics (JCET) , Jagiellonian University in Cracow , Cracow , Poland.,e Department of Chemical Physics, Faculty of Chemistry , Jagiellonian University in Cracow , Cracow , Poland
| | - Wojciech Piekoszewski
- f Department of Analytical Chemistry, Faculty of Chemistry , Jagiellonian University in Cracow , Cracow , Poland.,g School of Biomedicine , Far Eastern Federal University , Vladivostok , Russia
| | - Bogusław Buszewski
- d Department of Environmental Chemistry and Bioanalytics , Faculty of Chemistry, Nicolaus Copernicus University , Torun , Poland
| |
Collapse
|
5
|
Recent Advances in the Characterization and Analysis of Therapeutic Oligonucleotides by Analytical Separation Methods Coupling with Mass Spectrometry. ADVANCES IN CHROMATOGRAPHY 2016. [DOI: 10.1201/9781315370385-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
6
|
Kartsova LA, Bessonova EA. Biomedical applications of capillary electrophoresis. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
7
|
The role of derivatization techniques in the analysis of glyphosate and aminomethyl-phosphonic acid by chromatography. Microchem J 2015. [DOI: 10.1016/j.microc.2015.02.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
8
|
Medina-Casanellas S, Tak YH, Benavente F, Sanz-Nebot V, Sastre Toraño J, Somsen GW, de Jong GJ. Evaluation of fritless solid-phase extraction coupled on-line with capillary electrophoresis-mass spectrometry for the analysis of opioid peptides in cerebrospinal fluid. Electrophoresis 2015; 35:2996-3002. [PMID: 25074562 DOI: 10.1002/elps.201400293] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 07/18/2014] [Accepted: 07/19/2014] [Indexed: 11/07/2022]
Abstract
Fritless SPE on-line coupled to CE with UV and MS detection (SPE-CE-UV and SPE-CE-MS) was evaluated for the analysis of opioid peptides. A microcartridge of 150 μm id was packed with a C18 sorbent (particle size > 50 μm), which was retained between a short inlet capillary and a separation capillary (50 μm id). Several experimental parameters were optimized by SPE-CE-UV using solutions of dynorphin A (DynA), endomorphin 1 (End1), and methionine-enkephaline (Met). A microcartridge length of 4 mm was selected, sample was loaded for 10 min at 930 mbar and the retained peptides were eluted with 67 nL of an acidic hydro-organic solution. Using SPE-CE-MS, peak area and migration time repeatabilities for the three opioid peptides were 12-27% and 4-5%, respectively. SPE recovery was lower for the less hydrophobic DynA (22%) than for End1 (66%) and Met (78%) and linearity was satisfactory in all cases between 5 and 60 ng/mL. The LODs varied between 0.5 and 1.0 ng/mL which represent an enhancement of two orders of magnitude when compared with CE-MS. Cerebrospinal fluid (CSF) samples spiked with the opioid peptides were analyzed to demonstrate the applicability to biological samples. Peak area and migration time repeatabilities were similar to the standard solutions and the opioid peptides could be detected down to 1.0 ng/mL.
Collapse
|
9
|
Pontillo C, Filip S, Borràs DM, Mullen W, Vlahou A, Mischak H. CE-MS-based proteomics in biomarker discovery and clinical application. Proteomics Clin Appl 2015; 9:322-34. [DOI: 10.1002/prca.201400115] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/10/2014] [Accepted: 01/14/2015] [Indexed: 12/19/2022]
Affiliation(s)
- Claudia Pontillo
- Department of R&D; Mosaiques Diagnostics GmbH; Hanover Germany
- Charité-Universitätsmedizin Berlin; Berlin Germany
| | - Szymon Filip
- Charité-Universitätsmedizin Berlin; Berlin Germany
- Biotechnology Division; Biomedical Research Foundation; Academy of Athens; Athens Greece
| | - Daniel M. Borràs
- Department of R&D; ServiceXS; Leiden The Netherlands
- Institut National de la Santé et de la Recherche Médicale (INSERM); Institute of Cardiovascular and Metabolic Disease; Toulouse France
- Université Toulouse III Paul-Sabatier; Toulouse France
| | - William Mullen
- Institute of Cardiovascular and Medical Sciences; University of Glasgow; Glasgow UK
| | - Antonia Vlahou
- Biotechnology Division; Biomedical Research Foundation; Academy of Athens; Athens Greece
- School of Biomedical and Healthcare Sciences; Plymouth University; Plymouth UK
| | - Harald Mischak
- Department of R&D; Mosaiques Diagnostics GmbH; Hanover Germany
- Institute of Cardiovascular and Medical Sciences; University of Glasgow; Glasgow UK
| |
Collapse
|
10
|
Klein J, Buffin-Meyer B, Mullen W, Carty DM, Delles C, Vlahou A, Mischak H, Decramer S, Bascands JL, Schanstra JP. Clinical proteomics in obstetrics and neonatology. Expert Rev Proteomics 2014; 11:75-89. [PMID: 24404900 DOI: 10.1586/14789450.2014.872564] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Clinical proteomics has been applied to the identification of biomarkers of obstetric and neonatal disease. We will discuss a number of encouraging studies that have led to potentially valid biomarkers in the context of Down's syndrome, preterm birth, amniotic infections, preeclampsia, intrauterine growth restriction and obstructive uropathies. Obtaining noninvasive biomarkers (e.g., from the maternal circulation, urine or cervicovaginal fluid) may be more feasible for obstetric diseases than for diseases of the fetus, for which invasive methods are required (e.g., amniotic fluid, fetal urine). However, studies providing validated proteomics-identified biomarkers are limited. Efforts should be made to save well-characterized samples of these invasive body fluids so that many valid biomarkers of pregnancy-related diseases will be identified in the coming years using proteomics based analysis upon adoption of 'clinical proteomics guidelines'.
Collapse
Affiliation(s)
- Julie Klein
- Mosaiques diagnostics & therapeutics, Hannover, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Maráková K, Piešt'anský J, Veizerová L, Galba J, Dokupilová S, Havránek E, Mikuš P. Multidrug analysis of pharmaceutical and urine matrices by on-line coupled capillary electrophoresis and triple quadrupole mass spectrometry. J Sep Sci 2013; 36:1805-16. [DOI: 10.1002/jssc.201200980] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 02/27/2013] [Accepted: 03/02/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Katarína Maráková
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Juraj Piešt'anský
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Lucia Veizerová
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Jaroslav Galba
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Svetlana Dokupilová
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Emil Havránek
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Peter Mikuš
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy; Comenius University in Bratislava; Bratislava Slovak Republic
| |
Collapse
|
12
|
Adamski J, Suhre K. Metabolomics platforms for genome wide association studies--linking the genome to the metabolome. Curr Opin Biotechnol 2012; 24:39-47. [PMID: 23102864 DOI: 10.1016/j.copbio.2012.10.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/21/2012] [Accepted: 10/03/2012] [Indexed: 01/13/2023]
Abstract
Genome-wide association studies (GWAS) reveal links between genetic variance and predisposition to disease. With the advent of modern 'omics-technologies', GWAS can now identify the genetic factors that influence intermediate traits on pathways to disease, such as blood concentrations of carbohydrates, lipids, amino acids, and secondary metabolites, hormones and signal molecules. At the example of recent GWAS with metabolic traits (mGWAS) we review the high-throughput screening approaches that are available to further advance the field.
Collapse
Affiliation(s)
- Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany.
| | | |
Collapse
|
13
|
Bignardi C, Cavazza A, Corradini C. Determination of furosine in food products by capillary zone electrophoresis-tandem mass spectrometry. Electrophoresis 2012; 33:2382-9. [DOI: 10.1002/elps.201100582] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chiara Bignardi
- Dipartimento di Chimica Generale e Inorganica; Chimica Analitica; Chimica Fisica; Parma; Italy
| | - Antonella Cavazza
- Dipartimento di Chimica Generale e Inorganica; Chimica Analitica; Chimica Fisica; Parma; Italy
| | - Claudio Corradini
- Dipartimento di Chimica Generale e Inorganica; Chimica Analitica; Chimica Fisica; Parma; Italy
| |
Collapse
|
14
|
Xiong B, Wang W, Miao X, Liu L, Wang L, Zhou X, Hu J. Simultaneous laser-induced fluorescence, coaxial thermal lens spectroscopy and retro-reflected beam interference detection for capillary electrophoresis. Talanta 2012; 88:168-74. [DOI: 10.1016/j.talanta.2011.10.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 10/18/2011] [Accepted: 10/22/2011] [Indexed: 11/29/2022]
|
15
|
Medina-Casanellas S, Benavente F, Barbosa J, Sanz-Nebot V. Transient isotachophoresis in on-line solid phase extraction capillary electrophoresis time-of-flight-mass spectrometry for peptide analysis in human plasma. Electrophoresis 2011; 32:1750-9. [DOI: 10.1002/elps.201100017] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
16
|
Opekar F, Štulík K. Some important combinations of detection techniques for electrophoresis in capillaries and on chips with emphasis on electrochemical principles. Electrophoresis 2011; 32:795-810. [DOI: 10.1002/elps.201000455] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 10/01/2010] [Accepted: 10/07/2010] [Indexed: 11/08/2022]
|
17
|
Lankisch TO, Metzger J, Negm AA, Vosskuhl K, Schiffer E, Siwy J, Weismüller TJ, Schneider AS, Thedieck K, Baumeister R, Zürbig P, Weissinger EM, Manns MP, Mischak H, Wedemeyer J. Bile proteomic profiles differentiate cholangiocarcinoma from primary sclerosing cholangitis and choledocholithiasis. Hepatology 2011; 53:875-84. [PMID: 21374660 DOI: 10.1002/hep.24103] [Citation(s) in RCA: 125] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 11/24/2010] [Indexed: 12/17/2022]
Abstract
UNLABELLED Early detection of malignant biliary tract diseases, especially cholangiocarcinoma (CC) in patients with primary sclerosing cholangitis (PSC), is very difficult and often comes too late to give the patient a therapeutic benefit. We hypothesize that bile proteomic analysis distinguishes CC from nonmalignant lesions. We used capillary electrophoresis mass spectrometry (CE-MS) to identify disease-specific peptide patterns in patients with choledocholithiasis (n = 16), PSC (n = 18), and CC (n = 16) in a training set. A model for differentiation of choledocholithiasis from PSC and CC (PSC/CC model) and another model distinguishing CC from PSC (CC model) were subsequently validated in independent cohorts (choledocholithiasis [n = 14], PSC [n = 18] and CC [n = 25]). Peptides were characterized by sequencing. Application of the PSC/CC model in the independent test cohort resulted in correct exclusion of 12/14 bile samples from patients with choledocholithiasis and identification of 40/43 patients with PSC or CC (86% specificity, 93% sensitivity). The corresponding receiver operating characteristic (ROC) analysis revealed an area under the curve (AUC) of 0.93 (95% confidence interval [CI]: 0.82-0.98, P = 0.0001). The CC model succeeded in an accurate detection of 14/18 bile samples from patients with PSC and 21/25 samples with CC (78% specificity, 84% sensitivity) in the independent cohort, resulting in an AUC value of 0.87 (95% CI: 0.73-0.95, P = 0.0001) in ROC analysis. Eight out of 10 samples of patients with CC complicating PSC were identified. CONCLUSION Bile proteomic analysis discriminates benign conditions from CC accurately. This method may become a diagnostic tool in future as it offers a new possibility to diagnose malignant bile duct disease and thus enables efficient therapy particularly in patients with PSC.
Collapse
Affiliation(s)
- Tim O Lankisch
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Català-Clariana S, Benavente F, Giménez E, Barbosa J, Sanz-Nebot V. Identification of bioactive peptides in hypoallergenic infant milk formulas by capillary electrophoresis–mass spectrometry. Anal Chim Acta 2010; 683:119-25. [DOI: 10.1016/j.aca.2010.10.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 09/30/2010] [Accepted: 10/01/2010] [Indexed: 10/19/2022]
|
19
|
Mischak H, Schanstra JP. CE-MS in biomarker discovery, validation, and clinical application. Proteomics Clin Appl 2010; 5:9-23. [DOI: 10.1002/prca.201000058] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 09/03/2010] [Accepted: 09/07/2010] [Indexed: 12/30/2022]
|
20
|
Bou Khalil M, Hou W, Zhou H, Elisma F, Swayne LA, Blanchard AP, Yao Z, Bennett SAL, Figeys D. Lipidomics era: accomplishments and challenges. MASS SPECTROMETRY REVIEWS 2010; 29:877-929. [PMID: 20931646 DOI: 10.1002/mas.20294] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Lipid mediators participate in signal transduction pathways, proliferation, apoptosis, and membrane trafficking in the cell. Lipids are highly complex and diverse owing to the various combinations of polar headgroups, fatty acyl chains, and backbone structures. This structural diversity continues to pose a challenge for lipid analysis. Here we review the current state of the art in lipidomics research and discuss the challenges facing this field. The latest technological developments in mass spectrometry, the role of bioinformatics, and the applications of lipidomics in lipid metabolism and cellular physiology and pathology are also discussed.
Collapse
Affiliation(s)
- Maroun Bou Khalil
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON, Canada K1H 8M5
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Jecklin MC, Schmid S, Urban PL, Amantonico A, Zenobi R. Miniature flowing atmospheric-pressure afterglow ion source for facile interfacing of CE with MS. Electrophoresis 2010; 31:3597-605. [DOI: 10.1002/elps.201000350] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
22
|
Borges-Alvarez M, Benavente F, Giménez E, Barbosa J, Sanz-Nebot V. Assessment of capillary electrophoresis TOF MS for a confident identification of peptides. J Sep Sci 2010; 33:2489-98. [DOI: 10.1002/jssc.201000361] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
23
|
Shin GW, Hwang HS, Chung B, Jung GY. Recent developments in CE-based detection methods for food-borne pathogens. Electrophoresis 2010; 31:2137-53. [DOI: 10.1002/elps.200900682] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
24
|
Peš O, Preisler J. Off-line coupling of microcolumn separations to desorption mass spectrometry. J Chromatogr A 2010; 1217:3966-77. [DOI: 10.1016/j.chroma.2010.02.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 02/22/2010] [Accepted: 02/24/2010] [Indexed: 01/13/2023]
|
25
|
Somsen GW, Mol R, de Jong GJ. On-line coupling of electrokinetic chromatography and mass spectrometry. J Chromatogr A 2010; 1217:3978-91. [DOI: 10.1016/j.chroma.2010.01.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 12/23/2009] [Accepted: 01/08/2010] [Indexed: 11/27/2022]
|
26
|
Gaspar A, Harir M, Hertkorn N, Schmitt-Kopplin P. Preparative free-flow electrophoretic offline ESI-Fourier transform ion cyclotron resonance/MS analysis of Suwannee River fulvic acid. Electrophoresis 2010; 31:2070-9. [DOI: 10.1002/elps.200900726] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
27
|
Recent advances of capillary electrophoresis in pharmaceutical analysis. Anal Bioanal Chem 2010; 398:29-52. [DOI: 10.1007/s00216-010-3741-5] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 04/08/2010] [Accepted: 04/09/2010] [Indexed: 01/16/2023]
|
28
|
Benavente F, Medina-Casanellas S, Barbosa J, Sanz-Nebot V. Investigation of commercial sorbents for the analysis of opioid peptides in human plasma by on-line SPE-CE. J Sep Sci 2010; 33:1294-304. [PMID: 20187028 DOI: 10.1002/jssc.200900669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this study, we investigated the performance of several commercial sorbents (Sep-pack) C18, (t)C18, C8 and (t)C2, Oasis HLB, Isolute ENV+, Strata-X and Oasis MCX) for the determination of opioid peptides by solid-phase extraction coupled on-line to capillary electrophoresis (SPE-CE). First, standard solutions were analyzed in order to achieve the lowest LOD and the best electrophoretic separations using UV detection. The best results were obtained using C18, C8 and (t)C2 sorbents, which were examined for the analysis of spiked human plasma samples. A double-step sample clean-up pretreatment, which consisted of precipitation with acetonitrile and filtration, was needed to prevent saturation of the on-line SPE microcartridge. The filtration step was critical to obtain optimum analyte recovery and to clean up the sample matrix. A range of centrifugal filters and filtration conditions were tested and the recoveries of the sample pretreatment were evaluated by CE-ESI-MS. The LODs attained through SPE-CE-UV were approximately ten-fold better with C18 than with C8 and (t)C2. The 0.1 microg/mL LODs achieved by C18-SPE-CE-UV were further improved until we could detect 1 ng/mL concentrations of opioid peptides in plasma samples by C18-SPE-CE-ESI-MS, due to the outstanding selectivity of the MS detection.
Collapse
Affiliation(s)
- Fernando Benavente
- Department of Analytical Chemistry, University of Barcelona, Barcelona, Spain.
| | | | | | | |
Collapse
|
29
|
Servais AC, Fillet M, Mol R, Rousseau A, Crommen J, Somsen GW, de Jong GJ. Influence of the BGE composition on analyte response in CD-mediated NACE-MS. Electrophoresis 2010; 31:1157-1161. [DOI: 10.1002/elps.200900649] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
30
|
Bytzek AK, Reithofer MR, Galanski M, Groessl M, Keppler BK, Hartinger CG. The first example of MEEKC-ICP-MS coupling and its application for the analysis of anticancer platinum complexes. Electrophoresis 2010; 31:1144-1150. [PMID: 20349510 PMCID: PMC3512080 DOI: 10.1002/elps.200900522] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
MEEKC is a powerful electrodriven separation technique with many applications in different disciplines, including medicinal chemistry; however, up to now the coupling to highly sensitive and selective MS detectors was limited due to the ion suppressive effect of the commonly used surfactant SDS. Herein, the first example of the coupling of MEEKC to ICP-MS is presented and an MEEKC method for the separation of Pt(II) and Pt(IV) anticancer drugs and drug candidates was developed. Different compositions of microemulsions were evaluated and the data were compared with those collected with standard ultraviolet/visible (UV/vis) spectroscopy detection. The MEEKC-ICP-MS system was found to be more sensitive than MEEKC-UV/vis and the analysis of UV/vis silent compounds is now achievable. The migration behavior of the Pt(II) and Pt(IV) compounds under investigation is correlated to their different chemical structures.
Collapse
Affiliation(s)
- Anna K. Bytzek
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Michael R. Reithofer
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Markus Galanski
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Michael Groessl
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Bernhard K. Keppler
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| | - Christian G. Hartinger
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Str. 42, A-1090 Vienna, Austria
| |
Collapse
|
31
|
Hsueh YH, Huang JL, Tseng MC, Her GR. Sensitivity improvement of CE/ESI/MS analysis of gangliosides using a liquid-junction/low-flow interface. Electrophoresis 2010; 31:1138-1143. [DOI: 10.1002/elps.200900521] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
32
|
Simó C, Domínguez-Vega E, Marina ML, García MC, Dinelli G, Cifuentes A. CE-TOF MS analysis of complex protein hydrolyzates from genetically modified soybeans--a tool for foodomics. Electrophoresis 2010; 31:1175-1183. [PMID: 20209569 DOI: 10.1002/elps.200900448] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
A CE-TOF MS proteomic approach was applied for the analysis of hydrolyzates from complex soybean protein mixtures. After CE-TOF MS method development, the new approach provided the simultaneous analysis of more than 150 peptides from the soybean protein fraction soluble in ACN-water (80/20 v/v). The method is fast (about 30 min of analysis per sample) and is characterized by a relatively low running cost. The approach was used to study the substantial equivalence between a genetically modified variety of soybean compared with its traditional counterpart. No significant differences were found between the two studied soybeans based on the protein fraction studied. The capacity of the CE-TOF MS method to analyze complex mixtures of peptides in short times opens interesting possibilities in the growing Foodomics area.
Collapse
Affiliation(s)
- Carolina Simó
- Department of Food Analysis, Institute of Industrial Fermentations, CSIC, Madrid, Spain
| | - Elena Domínguez-Vega
- Department of Analytical Chemistry, Faculty of Chemistry, University of Alcalá, Madrid, Spain
| | - Maria Luisa Marina
- Department of Analytical Chemistry, Faculty of Chemistry, University of Alcalá, Madrid, Spain
| | - María Concepción García
- Department of Analytical Chemistry, Faculty of Chemistry, University of Alcalá, Madrid, Spain
| | - Giovanni Dinelli
- Department of Agroenvironmental Science and Technology, University of Bologna, Bologna, Italy
| | - Alejandro Cifuentes
- Department of Food Analysis, Institute of Industrial Fermentations, CSIC, Madrid, Spain
| |
Collapse
|
33
|
On-column silver substrate synthesis and surface-enhanced Raman detection in capillary electrophoresis. Anal Bioanal Chem 2010; 396:2341-8. [DOI: 10.1007/s00216-010-3468-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 12/21/2009] [Accepted: 01/11/2010] [Indexed: 11/27/2022]
|
34
|
Mikus P, Maráková K. Advanced CE for chiral analysis of drugs, metabolites, and biomarkers in biological samples. Electrophoresis 2010; 30:2773-802. [PMID: 19653234 DOI: 10.1002/elps.200900173] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An analysis of recent trends indicates that CE can show real advantages over chromatographic methods in ultratrace enantioselective determination of biologically active compounds in complex biological matrices. It is due to high separation efficiency and many applicable in-capillary electromigration effects in CE (countercurrent migration, stacking effects) enhancing significantly (enantio)separability and enabling effective sample preparation (preconcentration, purification, analyte derivatization). Other possible on-line combinations of CE, such as column coupled CE-CE techniques and implementation of nonelectrophoretic techniques (extraction, membrane filtration, flow injection) into CE, offer additional approaches for highly effective sample preparation and separation. CE matured to a highly flexible and compatible technique enabling its hyphenation with powerful detection systems allowing extremely sensitive detection (e.g. LIF) and/or structural characterization of analytes (e.g. MS). Within the last decade, more as well as less conventional analytical on-line approaches have been effectively utilized in this field and their practical potentialities are demonstrated on many new application examples in this article. Here, three basic areas of (enantioselective) drug bioanalysis are highlighted and supported by a brief theoretical description of each individual approach in a compact review structure (to create integrated view on the topic), including (i) progressive enantioseparation approaches and new enantioselective agents, (ii) in-capillary sample preparation (preconcentration, purification, derivatization), and (iii) detection possibilities related to enhanced sensitivity and structural characterization.
Collapse
Affiliation(s)
- Peter Mikus
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic.
| | | |
Collapse
|
35
|
Ravelo-Pérez LM, Asensio-Ramos M, Hernández-Borges J, Rodríguez-Delgado MA. Recent food safety and food quality applications of CE-MS. Electrophoresis 2009; 30:1624-46. [PMID: 19360778 DOI: 10.1002/elps.200800670] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The first on-line coupling of CE with MS detection more than 20 years ago provided a very powerful technique with a wide variety of applications, among which food analysis is of special interest, especially that dealing with food safety and food quality applications, the major topics of public interest nowadays. With this review article, we would like to show the most recent applications of CE-MS in both fields by recompiling and commenting articles published between January 2004 and October 2008. Although both applications are difficult to separate from each other, we have included in this work two main sections dealing with each specific field. Future trends will also be discussed.
Collapse
Affiliation(s)
- Lidia M Ravelo-Pérez
- Departamento de Química Analítica, Nutrición y Bromatología, Universidad de La Laguna, La Laguna, Tenerife, Islas Canarias, Spain
| | | | | | | |
Collapse
|
36
|
Huhn C, Ramautar R, Wuhrer M, Somsen GW. Relevance and use of capillary coatings in capillary electrophoresis–mass spectrometry. Anal Bioanal Chem 2009; 396:297-314. [DOI: 10.1007/s00216-009-3193-y] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Revised: 09/22/2009] [Accepted: 09/24/2009] [Indexed: 11/24/2022]
|
37
|
|
38
|
Urinary Proteome Analysis using Capillary Electrophoresis Coupled to Mass Spectrometry: A Powerful Tool in Clinical Diagnosis, Prognosis and Therapy Evaluation. J Med Biochem 2009. [DOI: 10.2478/v10011-009-0020-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Urinary Proteome Analysis using Capillary Electrophoresis Coupled to Mass Spectrometry: A Powerful Tool in Clinical Diagnosis, Prognosis and Therapy EvaluationProteome analysis has emerged as a powerful tool to decipher (patho) physiological processes, resulting in the establishment of the field of clinical proteomics. One of the main goals is to discover biomarkers for diseases from tissues and body fluids. Due to the enormous complexity of the proteome, a separation step is required for mass spectrometry (MS)-based proteome analysis. In this review, the advantages and limitations of protein separation by two-dimensional gel electrophoresis, liquid chromatography, surface-enhanced laser desorption/ionization and capillary electrophoresis (CE) for proteomic analysis are described, focusing on CE-MS. CE-MS enables separation and detection of the small molecular weight proteome in biological fluids with high reproducibility and accuracy in one single processing step and in a short time. As sensitive and specific single biomarkers generally may not exist, a strategy to overcome this diagnostic void is shifting from single analyte detection to simultaneous analysis of multiple analytes that together form a disease-specific pattern. Such approaches, however, are accompanied with additional challenges, which we will outline in this review. Besides the choice of adequate technological platforms, a high level of standardization of proteomic measurements and data processing is also necessary to establish proteomic profiling. In this regard, demands concerning study design, choice of specimens, sample preparation, proteomic data mining, and clinical evaluation should be considered before performing a proteomic study.
Collapse
|
39
|
Blasco S, Kortz L, Matysik FM. Comparison of detection performance of UV and electrochemical detection in NACE for a range of different capillary inner diameters. Electrophoresis 2009; 30:3355-60. [DOI: 10.1002/elps.200900324] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
40
|
Mischak H, Coon JJ, Novak J, Weissinger EM, Schanstra JP, Dominiczak AF. Capillary electrophoresis-mass spectrometry as a powerful tool in biomarker discovery and clinical diagnosis: an update of recent developments. MASS SPECTROMETRY REVIEWS 2009; 28:703-24. [PMID: 18973238 PMCID: PMC2720435 DOI: 10.1002/mas.20205] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Proteome analysis has emerged as a powerful technology to decipher biological processes. One of the main goals is to discover biomarkers for diseases from tissues and body fluids. However, the complexity and wide dynamic range of protein expression present an enormous challenge to separation technologies and mass spectrometry (MS). In this review, we examine the limitations of proteomics, and aim towards the definition of the current key prerequisites. We focus on capillary electrophoresis coupled to mass spectrometry (CE-MS), because this technique continues to show great promise. We discuss CE-MS from an application point of view, and evaluate its merits and vices for biomarker discovery and clinical applications. Finally, we present several examples on the use of CE-MS to determine urinary biomarkers and implications for disease diagnosis, prognosis, and therapy evaluation.
Collapse
Affiliation(s)
- Harald Mischak
- Mosaiques Diagnostics & Therapeutics, Hannover, Germany.
| | | | | | | | | | | |
Collapse
|
41
|
Martin GB, Mansion F, Servais AC, Debrus B, Rozet E, Hubert P, Crommen J, Fillet M. CE-MS method development for peptides analysis, especially hepcidin, an iron metabolism marker. Electrophoresis 2009; 30:2624-31. [DOI: 10.1002/elps.200800794] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
42
|
Opekar F, Coufal P, Štulík K. Rapid Capillary Zone Electrophoresis Along Short Separation Pathways and Its Use in Some Hyphenated Systems: A Critical Review. Chem Rev 2009; 109:4487-99. [DOI: 10.1021/cr900018r] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- František Opekar
- Charles University in Prague, Faculty of Science, Department of Analytical Chemistry, Albertov 2030, CZ-128 43 Prague 2, Czech Republic
| | - Pavel Coufal
- Charles University in Prague, Faculty of Science, Department of Analytical Chemistry, Albertov 2030, CZ-128 43 Prague 2, Czech Republic
| | - Karel Štulík
- Charles University in Prague, Faculty of Science, Department of Analytical Chemistry, Albertov 2030, CZ-128 43 Prague 2, Czech Republic
| |
Collapse
|
43
|
Klampfl CW. CE with MS detection: A rapidly developing hyphenated technique. Electrophoresis 2009; 30 Suppl 1:S83-91. [DOI: 10.1002/elps.200900088] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
44
|
Pereira F, Hassard S, Hassard J, deMello A. CE of dsDNA in low-molecular-weight polyethylene oxide solutions. Electrophoresis 2009; 30:2100-9. [DOI: 10.1002/elps.200900144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
45
|
Determination of nucleosides and nucleobases in different species of Cordyceps by capillary electrophoresis-mass spectrometry. J Pharm Biomed Anal 2009; 50:307-14. [PMID: 19497699 DOI: 10.1016/j.jpba.2009.04.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Revised: 04/23/2009] [Accepted: 04/29/2009] [Indexed: 11/21/2022]
Abstract
In present study, a capillary electrophoresis-mass spectrometry (CE-MS) method was developed for the simultaneous analysis of 12 nucleosides and nucleobases including cytosine, adenine, guanine, cytidine, cordycepin, adenosine, hypoxanthine, guanosine, inosine, 2'-deoxyuridine, uridine and thymidine in natural and cultured Cordyceps using 5-chlorocytosine arabinoside as an internal standard (IS). The CE separation conditions and MS parameters were optimized systematically for achieving good CE resolution and MS response of the investigated compounds. The optimum CE electrolyte was 100 mM formic acid containing 10% (v/v) methanol. The optimum MS parameters were as follows: 75% (v/v) methanol containing 0.3% formic acid with a flow rate of 3 microL/min was selected as the sheath liquid; the flow rate and temperature of drying gas were 6 L/min and 350 degrees C, respectively. The optimized CE-MS method was successfully applied for the simultaneous determination of 12 nucleosides and nucleobases in natural and cultured Cordyceps. On the basis of quantitative results, the total content of nucleosides is much higher in cultured Cordyceps (9138+/-4823 microg/g for cultured C. sinensis; 3722+/-1446 microg/g for C. militaris) than in natural ones (2167+/-412 microg/g). However, the hypoxanthine (131+/-47 microg/g) and inosine (335+/-90 microg/g) are much higher in natural C. sinensis. Cordycepin, which is abundant in cultured C. militaris (2276.5+/-842.6 microg/g), is only found in natural C. sinensis with very low content and cannot be detected in the cultured ones.
Collapse
|
46
|
Blasco C, Picó Y, Andreu V. Analytical method for simultaneous determination of pesticide and veterinary drug residues in milk by CE-MS. Electrophoresis 2009; 30:1698-707. [DOI: 10.1002/elps.200800696] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
47
|
Hübner G, Lindner B. Separation of R-form lipopolysaccharide and lipid A by CE-Fourier-transform ion cyclotron resonance MS. Electrophoresis 2009; 30:1808-16. [DOI: 10.1002/elps.200800754] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
48
|
Shi LH, Jin YX, Moon DC, Kim SK, Park SR. A sheathless CE/ESI-MS interface with an ionophore membrane-packed electro-conduction channel. Electrophoresis 2009; 30:1661-9. [DOI: 10.1002/elps.200800664] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
49
|
Helmja K, Borissova M, Knjazeva T, Jaanus M, Muinasmaa U, Kaljurand M, Vaher M. Fraction collection in capillary electrophoresis for various stand-alone mass spectrometers. J Chromatogr A 2009; 1216:3666-73. [DOI: 10.1016/j.chroma.2008.12.061] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Revised: 12/18/2008] [Accepted: 12/22/2008] [Indexed: 11/26/2022]
|
50
|
Li FA, Huang JL, Shen SY, Wang CW, Her GR. Development of a Liquid-Junction/Low-Flow Interface for Phosphate Buffer Capillary Electrophoresis Mass Spectrometry. Anal Chem 2009; 81:2810-4. [DOI: 10.1021/ac802491y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fu-An Li
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Ju-Li Huang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Shang-Yu Shen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Che-Wei Wang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Guor-Rong Her
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| |
Collapse
|