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Zhou W, Nazdrajić E, Pawliszyn J. High-Throughput and Rapid Screening of Drugs of Abuse in Saliva by Multi-Segment Injection Using Solid-Phase Microextraction-Automated Microfluidic Open Interface-Mass Spectrometry. Anal Chem 2023; 95:6367-6373. [PMID: 37021600 PMCID: PMC10848236 DOI: 10.1021/acs.analchem.2c05782] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
There is great demand for analytical methods capable of providing high-throughput and rapid screening, especially for anti-doping and clinical point-of-care applications. In this work, automated microfluidic open interface-mass spectrometry (MOI-MS) was used for coupling with high-throughput, automated solid-phase microextraction (SPME) to achieve this objective. The design of the MOI-MS interface provides a continuous and stable electrospray fluid flow to the MS without introducing any bubble, a feature that we exploit to introduce the concept of multi-segment injection for the determination of multiple samples in a single MS run. By eliminating the need to start a new MS run between sample assays, the developed approach provides significantly simplified protocols controlled by programmed software and increased reproducibility. Furthermore, the biocompatible SPME device, which utilizes coating consisting of hydrophilic-lipophilic balanced particles embedded in a polyacrylonitrile (PAN) binder, can be directly used for biological sample analysis, as the PAN acts as both a binder and a matrix-compatible barrier, thus enabling the enrichment of small molecules while eliminating interferences associated with the presence of interfering macromolecules. The above design was employed to develop a fast, quantitative method capable of analyzing drugs of abuse in saliva samples in as little as 75 s per sample. The findings indicate that the developed method provides good analytical performance, with limits of detection ranging between 0.05 and 5 ng/mL for analysis of 16 drugs of abuse, good calibration linear correlation coefficients (R2 ≥ 0.9957), accuracy between 81 and 120%, and excellent precision (RSD% < 13%). Finally, a proof-of-concept experiment was performed to demonstrate the method's suitability for real-time analysis in anti-doping applications.
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Affiliation(s)
- Wei Zhou
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Emir Nazdrajić
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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2
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Heng WS, Jadhav SR, Ueland M, Shellie RA. Rapid detection of Escherichia coli in dairy milk using static headspace-comprehensive two-dimensional gas chromatography. Anal Bioanal Chem 2022; 415:2535-2545. [PMID: 36539609 DOI: 10.1007/s00216-022-04485-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/28/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022]
Abstract
A new approach is introduced for rapid and reliable bacteria detection in food. Namely, static headspace-comprehensive two-dimensional gas chromatography (HS-GC × GC) with backflushing. The introduced approach provides fast detection of Escherichia coli (E. coli) in enriched ultra-high-temperature processed (UHT) dairy milk. The presence of E. coli may be indicated by detecting microbial volatile organic compounds emanating from test solutions inoculated with E. coli. In the present investigation, HS-GC × GC analysis is preceded by conventional enrichment in nutrient broth and inoculated samples are clearly discernable from controls following as little as 15 h sample enrichment. Headspace equilibration for 28 min followed by an 8 min GC × GC analysis of enriched test solutions reduces time-to-response by approximately one full day compared to conventional culture-based methods. The presence of ethanol, 1-propanol, and acetaldehyde may be used as a putative marker of E. coli contamination in milk and the introduced approach is able to detect single-cell initial bacterial load. Faster, reliable detection of pathogens and/or spoilage microbes in food products is desirable for the food industry. The described approach has great potential to complement the conventional workflow and be utilised for rapid microbial screening of foodstuff.
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Affiliation(s)
- Wan Sin Heng
- School of Exercise and Nutrition Sciences, CASS Food Research Centre, Deakin University, 221 Burwood Highway, Burwood, Australia
| | - Snehal R Jadhav
- School of Exercise and Nutrition Sciences, CASS Food Research Centre, Deakin University, 221 Burwood Highway, Burwood, Australia
| | - Maiken Ueland
- Centre for Forensic Science, School of Mathematical and Physical Sciences, University of Technology Sydney, 15 Broadway, Ultimo, Australia
| | - Robert A Shellie
- School of Exercise and Nutrition Sciences, CASS Food Research Centre, Deakin University, 221 Burwood Highway, Burwood, Australia.
- Centre for Food Innovation, Tasmania Institute of Agriculture, University of Tasmania, Locked Bag 1325, Launceston, Australia.
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3
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Zhou C, Li C, Cui H, Lin L. Metabolomics insights into the potential of encapsulated essential oils as multifunctional food additives. Crit Rev Food Sci Nutr 2022; 64:5143-5160. [PMID: 36454059 DOI: 10.1080/10408398.2022.2151974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Growing consumer concern about foodborne disease outbreaks and health risks associated with chemical additives has propelled the usage of essential oils (EOs) as novel food additives, but are limited by instability. In this regard, a series of EOs nano/micro-capsules have been widely used to enhance their stability and improve food quality. However, classical food quality assessment methods are insufficient to fully characterize the effects of encapsulated EOs on food properties, including physical, biochemical, organoleptic, and microbial changes. Recently, the rapid development of high-throughput sequencing is accelerating the application of metabolomics in food safety and quality analysis. This review seeks to present the most recent achievements in the application of non-targeted metabolomics to identify and quantify the overall metabolite profile associated with food quality, which can guide the development of emerging food preservation technologies. The scientific findings confirm that metabolomics opens up exciting prospects for biomarker screening in food preservation and contributes to an in-depth understanding of the mechanisms of action (MoA) of EOs. Future research should focus on constructing food quality assessment criteria based on multi-omics technologies, which will drive the standardization and commercialization of EOs for food industry applications.
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Affiliation(s)
- Changqian Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
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4
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Sousa M, Mulaosmanovic E, Erdei AL, Bengtsson M, Witzgall P, Alsanius BW. Volatilomes reveal specific signatures for contamination of leafy vegetables with Escherichia coli O157:H7. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Hossain SMZ, Razzak SA, Hossain MM. Application of Essential Oils as Green Corrosion Inhibitors. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-019-04305-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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6
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Ma XK, Li XF, Zhang JY, Lei J, Li WW, Wang G. Analysis of the Volatile Components in Selaginella doederleinii by Headspace Solid Phase Microextraction-Gas Chromatography-Mass Spectrometry. Molecules 2019; 25:molecules25010115. [PMID: 31892247 PMCID: PMC6982779 DOI: 10.3390/molecules25010115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/19/2019] [Accepted: 12/23/2019] [Indexed: 11/16/2022] Open
Abstract
Selaginella doederleinii (SD) is a perennial medicinal herb widely distributed in China. In this study, the volatile components of SD from two regions (24 batches), namely Zhejiang and Guizhou, were determined by combining headspace solid phase microextraction and gas chromatography-mass spectrometry (HS-SPME/GC-MS). After investigating different influence factors, the optimal conditions for extraction were as follows: The sample amount of 1 g, the polydimethylsiloxane-divinylbenzene (PDMS-DVB) fiber of 65 µm, the extraction time of 20 min, and the extraction temperature of 100 °C. Based on the above optimum conditions, 58 volatiles compounds, including 20 terpenes, 11 alkanes, 3 alcohols, 6 ketones, 3 esters, 11 aldehydes, 1 ether, 1 aromatic, 1 phenol, and 1 furan, were found and identified in SD. Furthermore, hierarchical cluster analysis and principal component analysis were successfully applied to distinguish the chemical constituents of SD from two regions. Additionally, anethol, zingerone, 2,4-di-tert-butylphenol, ledene, hexyl hexanoate, α-cadinol, phytone, hinesol, decanal, octadecene, cedren, 7-tetradecene, copaene, β-humulene, 2-butyl-2-octenal, tetradecane, cedrol, calacorene, 6-dodecanone, β-caryophyllene, 4-oxoisophorone, γ-nonanolactone, 2-pentylfuran, 1,2-epoxyhexadecane, carvacrol, n-pentadecane, diisobutyl phthalate, farnesene, n-heptadecane, linalool, 1-octen-3-ol, phytane, and β-asarone were selected as the potential markers for discriminating SD from 24 habitats in Zhejiang and Guizhou by partial least squares discrimination analysis (PLS-DA). This study revealed the differences in the components of SD from different regions, which could provide a reference for the future quality evaluation.
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Affiliation(s)
- Xian-kui Ma
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
| | - Xiao-fei Li
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
| | - Jian-yong Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
| | - Jie Lei
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
| | - Wei-wei Li
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
| | - Gang Wang
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, China
- Correspondence: ; Tel.: +86-851-2861-9353
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7
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Doyle AA, Stephens JC. A review of cinnamaldehyde and its derivatives as antibacterial agents. Fitoterapia 2019; 139:104405. [PMID: 31707126 DOI: 10.1016/j.fitote.2019.104405] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 02/05/2023]
Abstract
There is a continuing rise in the occurrence of multidrug-resistant bacterial infections. Antibiotic resistance to currently available antibiotics has become a global health issue leading to an urgent need for alternative antibacterial strategies. There has been a renewed interest in the development of antibacterial agents from natural sources, and trans-cinnamaldehyde is an example of a naturally occurring compound that has received significant attention in recent years. Trans-Cinnamaldehyde has been shown to possess substantial antimicrobial activity, as well as an array of other medicinal properties, and represents an intriguing hit compound from which a number of derivatives have been developed. In some cases, these derivatives have been shown to possess improved activity, not only compared to trans-cinnamaldehyde but also to commonly used antibiotics. Therefore, understanding the antibacterial mechanisms of action that these compounds elicit is imperative in order to facilitate their development and the development of new antibacterial agents that could exploit similar mechanistic approaches. The purpose of this review is to provide an overview of current knowledge on the antibacterial activity and mechanisms of action of cinnamaldehyde and its derivatives, and to highlight significant contributions made in this research area. It is hoped that the findings presented in this work will aid the future development of new antibacterial agents.
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Affiliation(s)
- Amanda A Doyle
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - John C Stephens
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland; The Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland.
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8
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Acquaro Junior VR, Rodrigues JP, Moraes LAB. Solid phase microextraction as a powerful alternative for screening of secondary metabolites in actinomycetes. JOURNAL OF MASS SPECTROMETRY : JMS 2019; 54:823-833. [PMID: 31476245 DOI: 10.1002/jms.4434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 08/24/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Actinobacteria are one of the most promising producers of medically and industrially relevant secondary metabolites. However, screening of such compounds in actinobacteria growth demands simple, fast, and efficient extraction procedures that enable detection and precise quantification of biologically active compounds. In this regard, solid phase microextraction (SPME) emerges as an ideal extraction technique for screening of secondary metabolites in bacteria culture due to its non-exhaustive, minimally invasive, and non-destructive nature: its integrated sample preparation workflow; balanced coverage feature; metabolism quenching capabilities; and superior cleanup, as well as its versatility in configuration, which enables automation and high throughput applications. The current work provides a comparison of micro-scale and direct immersion SPME (DI-SPME) for screening of secondary metabolites, describes the optimization of the developed DI-SPME method, and introduces the developed technique for mapping of target secondary metabolites as well as its direct coupling to mass spectrometry for such applications. The optimized DI-SPME method provided higher amounts of extracted ions and intensity signals, yielding superior extraction and desorption efficiency as compared with micro-scale extraction. Studied compounds presented stability on the coating for 24 h at room temperature. The DI-SPME mapping approach revealed that lysolipin I and the lienomycin analog are distributed along the center and edges of the colony, respectively. Direct coupling of SPME to MS provided a similar ions profile as SPME-LC-MS while enabling a significant decrease in analysis time, demonstrating its suitability for such applications. DI-SPME is herein presented as an alternative to micro-scale extraction for screening of secondary metabolites in actinobacteria solid medium, as well as a feasible alternative to DESI-IMS for mapping of biologic radial distribution of secondary metabolites and cell life cycle studies. Lastly, the direct coupling of DI-SPME to MS is presented as a fast, powerful technique for high throughput analysis of secondary metabolites in this medium.
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Affiliation(s)
| | - Júlia Pereira Rodrigues
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Luiz Alberto Beraldo Moraes
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
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9
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Nazaripour A, Yamini Y, Bagheri H. Extraction and determination of trace amounts of three anticancer pharmaceuticals in urine by three-phase hollow fiber liquid-phase microextraction based on two immiscible organic solvents followed by high-performance liquid chromatography. J Sep Sci 2018; 41:3113-3120. [DOI: 10.1002/jssc.201800183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/24/2018] [Accepted: 05/24/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Ali Nazaripour
- Department of Chemistry, Faculty of Sciences; Tarbiat Modares University; Tehran Iran
| | - Yadollah Yamini
- Department of Chemistry, Faculty of Sciences; Tarbiat Modares University; Tehran Iran
| | - Hasan Bagheri
- Chemical Injuries Research Center, System Biology and Poisoning Institute; Baqiyatallah University of Medical Sciences; Tehran Iran
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10
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Oertel P, Bergmann A, Fischer S, Trefz P, Küntzel A, Reinhold P, Köhler H, Schubert JK, Miekisch W. Evaluation of needle trap micro-extraction and solid-phase micro-extraction: Obtaining comprehensive information on volatile emissions from in vitro cultures. Biomed Chromatogr 2018; 32:e4285. [PMID: 29761519 DOI: 10.1002/bmc.4285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/16/2018] [Accepted: 05/02/2018] [Indexed: 01/06/2023]
Abstract
Volatile organic compounds (VOCs) emitted from in vitro cultures may reveal information on species and metabolism. Owing to low nmol L-1 concentration ranges, pre-concentration techniques are required for gas chromatography-mass spectrometry (GC-MS) based analyses. This study was intended to compare the efficiency of established micro-extraction techniques - solid-phase micro-extraction (SPME) and needle-trap micro-extraction (NTME) - for the analysis of complex VOC patterns. For SPME, a 75 μm Carboxen®/polydimethylsiloxane fiber was used. The NTME needle was packed with divinylbenzene, Carbopack X and Carboxen 1000. The headspace was sampled bi-directionally. Seventy-two VOCs were calibrated by reference standard mixtures in the range of 0.041-62.24 nmol L-1 by means of GC-MS. Both pre-concentration methods were applied to profile VOCs from cultures of Mycobacterium avium ssp. paratuberculosis. Limits of detection ranged from 0.004 to 3.93 nmol L-1 (median = 0.030 nmol L-1 ) for NTME and from 0.001 to 5.684 nmol L-1 (median = 0.043 nmol L-1 ) for SPME. NTME showed advantages in assessing polar compounds such as alcohols. SPME showed advantages in reproducibility but disadvantages in sensitivity for N-containing compounds. Micro-extraction techniques such as SPME and NTME are well suited for trace VOC profiling over cultures if the limitations of each technique is taken into account.
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Affiliation(s)
- Peter Oertel
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies, University Medical Center Rostock, Rostock, Germany
| | - Andreas Bergmann
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies, University Medical Center Rostock, Rostock, Germany
| | - Sina Fischer
- Institute of Molecular Pathogenesis at the 'Friedrich-Loeffler-Institut', Jena, Germany
| | - Phillip Trefz
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies, University Medical Center Rostock, Rostock, Germany
| | - Anne Küntzel
- Institute of Molecular Pathogenesis at the 'Friedrich-Loeffler-Institut', Jena, Germany
| | - Petra Reinhold
- Institute of Molecular Pathogenesis at the 'Friedrich-Loeffler-Institut', Jena, Germany
| | - Heike Köhler
- Institute of Molecular Pathogenesis at the 'Friedrich-Loeffler-Institut', Jena, Germany
| | - Jochen K Schubert
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies, University Medical Center Rostock, Rostock, Germany
| | - Wolfram Miekisch
- Department of Anesthesiology and Intensive Care Medicine, Rostock Medical Breath Research Analytics and Technologies, University Medical Center Rostock, Rostock, Germany
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11
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Gould O, Wieczorek T, de Lacy Costello B, Persad R, Ratcliffe N. Assessment of a combined gas chromatography mass spectrometer sensor system for detecting biologically relevant volatile compounds. J Breath Res 2017; 12:016009. [PMID: 29211690 DOI: 10.1088/1752-7163/aa8efe] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
There have been a number of studies in which metal oxide sensors (MOS) have replaced conventional analytical detectors in gas chromatography systems. However, despite the use of these instruments in a range of applications including breath research the sensor responses (i.e. resistance changes w.r.t. concentration of VCs) remain largely unreported. This paper addresses that issue by comparing the response of a metal oxide sensor directly with a mass spectrometer (MS), whereby both detectors are interfaced to the same GC column using an s-swafer. It was demonstrated that the sensitivity of an in-house fabricated ZnO/SnO2 thick film MOS was superior to a modern MS for the detection of a wide range of volatile compounds (VCs) of different functionalities and masses. Better techniques for detection and quantification of these VCs is valuable, as many of these compounds are commonly reported throughout the scientific literature. This is also the first published report of a combined GC-MS sensor system. These two different detector technologies when combined, should enhance discriminatory abilities to aid disease diagnoses using volatiles from e.g. breath, and bodily fluids. Twenty-nine chemical standards have been tested using solid phase micro-extraction; 25 of these compounds are found on human breath. In all but two instances the sensor exhibited the same or superior limit of detection compared to the MS. Twelve stool samples from healthy participants were analysed; the sensor detected, on average 1.6 peaks more per sample than the MS. Similarly, analysing the headspace of E. coli broth cultures the sensor detected 6.9 more peaks per sample versus the MS. This greater sensitivity is primarily a function of the superior limits of detection of the metal oxide sensor. This shows that systems based on the combination of chromatography systems with solid state sensors shows promise for a range of applications.
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Affiliation(s)
- Oliver Gould
- Institute of Biosensor Technology, University of the West of England, Coldharbour Lane, Frenchay, Bristol, BS16 1QY, United Kingdom
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12
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Reyes-Garcés N, Gionfriddo E, Gómez-Ríos GA, Alam MN, Boyacı E, Bojko B, Singh V, Grandy J, Pawliszyn J. Advances in Solid Phase Microextraction and Perspective on Future Directions. Anal Chem 2017; 90:302-360. [DOI: 10.1021/acs.analchem.7b04502] [Citation(s) in RCA: 402] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Md. Nazmul Alam
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Ezel Boyacı
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Barbara Bojko
- Department of Pharmacodynamics and Molecular Pharmacology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Varoon Singh
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Jonathan Grandy
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1
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13
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Inter-laboratory validation of a thin film microextraction technique for determination of pesticides in surface water samples. Anal Chim Acta 2017; 964:74-84. [DOI: 10.1016/j.aca.2017.02.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 01/30/2017] [Accepted: 02/01/2017] [Indexed: 12/22/2022]
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14
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Chen J, Tang J, Shi H, Tang C, Zhang R. Characteristics of volatile organic compounds produced from five pathogenic bacteria by headspace-solid phase micro-extraction/gas chromatography-mass spectrometry. J Basic Microbiol 2016; 57:228-237. [DOI: 10.1002/jobm.201600505] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/05/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Juan Chen
- College of Life Science and Technology; Southwest University for Nationalities; Chengdu China
| | - Junni Tang
- College of Life Science and Technology; Southwest University for Nationalities; Chengdu China
| | - Hui Shi
- College of Life Science and Technology; Southwest University for Nationalities; Chengdu China
| | - Cheng Tang
- College of Life Science and Technology; Southwest University for Nationalities; Chengdu China
| | - Rong Zhang
- College of Life Science and Technology; Southwest University for Nationalities; Chengdu China
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15
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Liu J, Wang B, Tai C, Wu L, Zhao H, Guan J, Chen L. An Effective Method to Detect Volatile Intermediates Generated in the Bioconversion of Coal to Methane by Gas Chromatography-Mass Spectrometry after In-Situ Extraction Using Headspace Solid-Phase Micro-Extraction under Strict Anaerobic Conditions. PLoS One 2016; 11:e0163949. [PMID: 27695055 PMCID: PMC5047463 DOI: 10.1371/journal.pone.0163949] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 09/16/2016] [Indexed: 02/06/2023] Open
Abstract
Bioconversion of coal to methane has gained increased attention in recent decades because of its economic and environmental advantages. However, the mechanism of this process is difficult to study in depth, partly because of difficulties associated with the analysis of intermediates generated in coal bioconversion. In this investigation, we report on an effective method to analyze volatile intermediates generated in the bioconversion of coal under strict anaerobic conditions. We conduct in-situ extraction of intermediates using headspace solid-phase micro-extraction followed by detection by gas chromatography-mass spectrometry. Bioconversion simulation equipment was modified and combined with a solid-phase micro-extraction device. In-situ extraction could be achieved by using the combined units, to avoid a breakdown in anaerobic conditions and to maintain the experiment continuity. More than 30 intermediates were identified qualitatively in the conversion process, and the variation in trends of some typical intermediates has been discussed. Volatile organic acids (C2–C7) were chosen for a quantitative study of the intermediates because of their importance during coal bioconversion to methane. Fiber coating, extraction time, and solution acidity were optimized in the solid-phase micro-extraction procedure. The pressure was enhanced during the bioconversion process to investigate the influence of headspace pressure on analyte extraction. The detection limits of the method ranged from 0.0006 to 0.02 mmol/L for the volatile organic acids and the relative standard deviations were between 4.6% and 11.5%. The volatile organic acids (C2–C7) generated in the bioconversion process were 0.01–1.15 mmol/L with a recovery range from 80% to 105%. The developed method is useful for further in-depth research on the bioconversion of coal to methane.
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Affiliation(s)
- Jianmin Liu
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
| | - Baoyu Wang
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
| | - Chao Tai
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
- * E-mail:
| | - Li Wu
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China
| | - Han Zhao
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
| | - Jiadong Guan
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
| | - Linyong Chen
- National Key Laboratory of Coal and Coal-bed Methane Simultaneous Extraction, Jincheng, China
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16
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Puig-Castellví F, Alfonso I, Piña B, Tauler R. (1)H NMR metabolomic study of auxotrophic starvation in yeast using Multivariate Curve Resolution-Alternating Least Squares for Pathway Analysis. Sci Rep 2016; 6:30982. [PMID: 27485935 PMCID: PMC4971537 DOI: 10.1038/srep30982] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 07/12/2016] [Indexed: 11/15/2022] Open
Abstract
Disruption of specific metabolic pathways constitutes the mode of action of many known toxicants and it is responsible for the adverse phenotypes associated to human genetic defects. Conversely, many industrial applications rely on metabolic alterations of diverse microorganisms, whereas many therapeutic drugs aim to selectively disrupt pathogens’ metabolism. In this work we analyzed metabolic changes induced by auxotrophic starvation conditions in yeast in a non-targeted approach, using one-dimensional proton Nuclear Magnetic Resonance spectroscopy (1H NMR) and chemometric analyses. Analysis of the raw spectral datasets showed specific changes linked to the different stages during unrestricted yeast growth, as well as specific changes linked to each of the four tested starvation conditions (L-methionine, L-histidine, L-leucine and uracil). Analysis of changes in concentrations of more than 40 metabolites by Multivariate Curve Resolution – Alternating Least Squares (MCR-ALS) showed the normal progression of key metabolites during lag, exponential and stationary unrestricted growth phases, while reflecting the metabolic blockage induced by the starvation conditions. In this case, different metabolic intermediates accumulated over time, allowing identification of the different metabolic pathways specifically affected by each gene disruption. This synergy between NMR metabolomics and molecular biology may have clear implications for both genetic diagnostics and drug development.
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Affiliation(s)
- Francesc Puig-Castellví
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, (IDAEA-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain
| | - Ignacio Alfonso
- Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain
| | - Benjamin Piña
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, (IDAEA-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain
| | - Romà Tauler
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, (IDAEA-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain
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17
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Mousavi F, Bojko B, Bessonneau V, Pawliszyn J. Cinnamaldehyde Characterization as an Antibacterial Agent toward E. coli Metabolic Profile Using 96-Blade Solid-Phase Microextraction Coupled to Liquid Chromatography–Mass Spectrometry. J Proteome Res 2016; 15:963-75. [PMID: 26811002 DOI: 10.1021/acs.jproteome.5b00992] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Fatemeh Mousavi
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Barbara Bojko
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
- Department
of Pharmacodynamics and Molecular Pharmacology, Faculty of Pharmacy,
Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Vincent Bessonneau
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Janusz Pawliszyn
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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18
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Mousavi F, Bojko B, Pawliszyn J. Development of high throughput 96-blade solid phase microextraction-liquid chromatrography-mass spectrometry protocol for metabolomics. Anal Chim Acta 2015; 892:95-104. [PMID: 26388479 DOI: 10.1016/j.aca.2015.08.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/28/2015] [Accepted: 08/08/2015] [Indexed: 12/15/2022]
Abstract
In metabolomics, the workflow for quantitative and comprehensive metabolic mapping of cellular metabolites can be a very challenging undertaking. Sampling and sample preparation play a significant role in untargeted analysis, as they may affect the composition of the analyzed metabolome. In the current work, different solid phase microextraction (SPME) coating chemistries were developed and applied to provide simultaneous extraction of a wide range of both hydrophobic and hydrophilic cellular metabolites produced by a model organism, Escherichia coli. Three different LC-MS methods were also evaluated for analysis of extracted metabolites. Finally, over 200 cellular metabolites were separated and detected with widely varying hydrophobicities ranging within -7 < log P < 15, including amino acids, peptides, nucleotides, carbohydrates, polycarboxylic acids, vitamins, phosphorylated compounds, and lipids such as hydrophobic phospholipids, prenol lipids, and fatty acids at the stationary phase of the E. coli life cycle using the developed 96-blade SPME-LC-MS method.
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Affiliation(s)
- Fatemeh Mousavi
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Barbara Bojko
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
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19
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Ke Y, Li W, Wang Y, Hao X, Jiang R, Zhu F, Ouyang G. Comparison of fully-automated headspace single drop microextraction and headspace solid phase microextraction techniques for rapid analysis of No. 6 solvent residues in edible oil. Microchem J 2014. [DOI: 10.1016/j.microc.2014.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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20
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21
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Gao P, Xu G. Mass-spectrometry-based microbial metabolomics: recent developments and applications. Anal Bioanal Chem 2014; 407:669-80. [PMID: 25216964 DOI: 10.1007/s00216-014-8127-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/04/2014] [Accepted: 08/20/2014] [Indexed: 12/20/2022]
Abstract
Metabolomics is an omics technique aiming at qualitatively and quantitatively describing a metabolome by various analytical platforms. It is an indispensable component of modern systems biology. Microbial metabolomics can be roughly classified as metabolic footprint analysis and metabolic fingerprint analysis depending on the analyte origins. Both of them have been beneficial to microbiological research for different reasons. Mass spectrometry and nuclear magnetic resonance spectroscopy techniques are popular analytical strategies prevailing in the metabolomics field. In this review, chromatography-mass-spectrometry-based microbial metabolomic analysis steps are summarized, including sample collection, metabolite extraction, instrument analysis, and data analysis. Moreover, their applications in some representative fields are discussed as examples. The aim of this review is to present briefly recent technical advances in mass-spectrometry-based analysis, and to highlight the value of modern applications of microbial metabolomics.
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Affiliation(s)
- Peng Gao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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22
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Nojavan S, Gorji T, Davarani SSH, Morteza-Najarian A. Solvent selection in ultrasonic-assisted emulsification microextraction: Comparison between high- and low-density solvents by means of novel type of extraction vessel. Anal Chim Acta 2014; 838:51-7. [DOI: 10.1016/j.aca.2014.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 06/03/2014] [Indexed: 01/24/2023]
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23
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Moein MM, Said R, Bassyouni F, Abdel-Rehim M. Solid phase microextraction and related techniques for drugs in biological samples. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2014; 2014:921350. [PMID: 24688797 PMCID: PMC3943203 DOI: 10.1155/2014/921350] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 10/24/2013] [Accepted: 10/25/2013] [Indexed: 06/03/2023]
Abstract
In drug discovery and development, the quantification of drugs in biological samples is an important task for the determination of the physiological performance of the investigated drugs. After sampling, the next step in the analytical process is sample preparation. Because of the low concentration levels of drug in plasma and the variety of the metabolites, the selected extraction technique should be virtually exhaustive. Recent developments of sample handling techniques are directed, from one side, toward automatization and online coupling of sample preparation units. The primary objective of this review is to present the recent developments in microextraction sample preparation methods for analysis of drugs in biological fluids. Microextraction techniques allow for less consumption of solvent, reagents, and packing materials, and small sample volumes can be used. In this review the use of solid phase microextraction (SPME), microextraction in packed sorbent (MEPS), and stir-bar sorbtive extraction (SBSE) in drug analysis will be discussed. In addition, the use of new sorbents such as monoliths and molecularly imprinted polymers will be presented.
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Affiliation(s)
- Mohammad Mahdi Moein
- Department of Chemistry, Amirkabir University of Technology, Tehran, Iran
- Department of Analytical Chemistry, Stockholm University, SE10691 Stockholm, Sweden
| | - Rana Said
- Department of Analytical Chemistry, Stockholm University, SE10691 Stockholm, Sweden
| | | | - Mohamed Abdel-Rehim
- Department of Analytical Chemistry, Stockholm University, SE10691 Stockholm, Sweden
- National Research Center of Egypt, Cairo 12622, Egypt
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24
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Recent developments and future trends in solid phase microextraction techniques towards green analytical chemistry. J Chromatogr A 2013; 1321:1-13. [DOI: 10.1016/j.chroma.2013.10.030] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 09/19/2013] [Accepted: 10/09/2013] [Indexed: 01/17/2023]
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25
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Nazzaro F, Fratianni F, De Martino L, Coppola R, De Feo V. Effect of essential oils on pathogenic bacteria. Pharmaceuticals (Basel) 2013; 6:1451-74. [PMID: 24287491 PMCID: PMC3873673 DOI: 10.3390/ph6121451] [Citation(s) in RCA: 868] [Impact Index Per Article: 78.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 10/29/2013] [Accepted: 11/08/2013] [Indexed: 12/04/2022] Open
Abstract
The increasing resistance of microorganisms to conventional chemicals and drugs is a serious and evident worldwide problem that has prompted research into the identification of new biocides with broad activity. Plants and their derivatives, such as essential oils, are often used in folk medicine. In nature, essential oils play an important role in the protection of plants. Essential oils contain a wide variety of secondary metabolites that are capable of inhibiting or slowing the growth of bacteria, yeasts and moulds. Essential oils and their components have activity against a variety of targets, particularly the membrane and cytoplasm, and in some cases, they completely change the morphology of the cells. This brief review describes the activity of essential oils against pathogenic bacteria.
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Affiliation(s)
- Filomena Nazzaro
- Istituto di Scienze dell’Alimentazione, ISA-CNR, Via Roma 64, 83100 Avellino, Italy; E-Mails: (F.F.); (R.C)
| | - Florinda Fratianni
- Istituto di Scienze dell’Alimentazione, ISA-CNR, Via Roma 64, 83100 Avellino, Italy; E-Mails: (F.F.); (R.C)
| | - Laura De Martino
- Dipartimento di Farmacia,Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy; E-Mails: (L.D.M.); (V.D.F.)
| | - Raffaele Coppola
- Istituto di Scienze dell’Alimentazione, ISA-CNR, Via Roma 64, 83100 Avellino, Italy; E-Mails: (F.F.); (R.C)
| | - Vincenzo De Feo
- Dipartimento di Farmacia,Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy; E-Mails: (L.D.M.); (V.D.F.)
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