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Samaniego-Sánchez C, Marín-García G, Quesada-Granados J. A new fermented beverage from sugarcane (Saccharum officinarum L.) molasses: Analysis of physicochemical properties and antioxidant capacity, and comparison with other industrial alcohol products. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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2
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Analyses of Indole Compounds in Sugar Cane (Saccharum officinarum L.) Juice by High Performance Liquid Chromatography and Liquid Chromatography-Mass Spectrometry after Solid-Phase Extraction. SEPARATIONS 2017. [DOI: 10.3390/separations4010007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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3
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Micellar Electrokinetic Chromatography with Laser-Induced Fluorescence Detection for Separation of Red and Yellow Historical Dyes. CHROMATOGRAPHY 2013. [DOI: 10.3390/chromatography1010009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Zhao Y, Zhu L, Yu S, Zhao Z. HPLC-UV-ESI-MS methods for flavonoid profiling of sugarcane juice extract. SUGAR INDUSTRY-ZUCKERINDUSTRIE 2013. [DOI: 10.36961/si14371] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
An efficient method combining liquid chromatography coupled to electrospray ionization mass spectrometry in tandem mode with negative ion detection was described for the qualitative analysis of flavonoids in sugarcane juice. The analyses were carried out on a Shim-pack C18 column (150mm×4.6mmI.D.,5µm), with a mobile phase composed by methanol: 5% aqueous acetic acid by linear gradient elution (0–20min, methanol 15–25%; 20–60min, methanol 25–33%; 60–90min, methanol 33–48%). Nine phenolic compounds were identified on the basis of their mass spectra in full scan mode and the pattern of their fragmentation. The diagnostic fragmentation patterns of the compounds during collision induced dissociation (CID) elucidated structural information of the compounds analysed. This is the first time that vitexin-rhamnosyl glucoside (8-glucopyranosyl-7-[6-O-(6-deoxy-mannopyranosyl)-glucopyranosyl]-5-hydroxy-2-(4-hydroxyphenyl)-4H-1-Benzopyran-4-one) has been detected or identified in sugarcane juice.
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5
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Phenolic composition and antioxidant activity of culms and sugarcane (Saccharum officinarum L.) products. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.09.059] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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6
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Quantitative analysis and recovery optimisation of flavonoids and anthocyanins in sugar-making process of sugarcane industry. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.08.053] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Li X, Yao S, Tu B, Li X, Jia C, Song H. Determination and comparison of flavonoids and anthocyanins in Chinese sugarcane tips, stems, roots and leaves. J Sep Sci 2010; 33:1216-23. [DOI: 10.1002/jssc.200900567] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Abstract
Traditional Chinese medicines (TCMs) are getting more and more popular nowadays in the whole world for improving health condition of human beings as well as preventing and healing diseases. TCM is a multi-component system with components mostly unknown, and only a few compounds are responsible for the pharmaceutical and/or toxic effects. The large numbers of other components in the TCM make the screening and analysis of the bioactive components extremely difficult. So, separation and analysis of the desired chemical components in TCM are very important subjects for modernization research of TCM. Thus, many novel separation techniques with significant advantages over conventional methods were introduced and applied to separation and analysis of the chemical constituents in TCM. This review presents just a brief outline of the applications of different separation methods for the isolation and analysis of TCM constituents.
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Affiliation(s)
- Shao Liu
- College of Chemistry and Chemical Engineering, Research Center of Modernization of Chinese Medicines, Central South University, Changsha, PR China
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9
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García-Villalba R, León C, Dinelli G, Segura-Carretero A, Fernández-Gutiérrez A, Garcia-Cañas V, Cifuentes A. Comparative metabolomic study of transgenic versus conventional soybean using capillary electrophoresis-time-of-flight mass spectrometry. J Chromatogr A 2008; 1195:164-73. [PMID: 18508066 DOI: 10.1016/j.chroma.2008.05.018] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 05/05/2008] [Accepted: 05/08/2008] [Indexed: 11/17/2022]
Abstract
In this work, capillary electrophoresis-time-of-flight mass spectrometry (CE-TOF-MS) is proposed to identify and quantify the main metabolites found in transgenic soybean and its corresponding non-transgenic parental line both grown under identical conditions. The procedure includes optimization of metabolites extraction, separation by CE, on-line electrospray-TOF-MS analysis and data evaluation. A large number of extraction procedures and background electrolytes are tested in order to obtain a highly reproducible and sensitive analytical methodology. Using this approach, a large number of metabolites were tentatively identified based on the high mass accuracy provided by TOF-MS analyzer, together with the isotopic pattern and expected electrophoretic mobility of these compounds. In general, the same metabolites and in similar amounts were found in the conventional and transgenic variety. However, significant differences were also observed in some specific cases when the conventional variety was compared with its corresponding transgenic line. The selection of these metabolites as possible biomarkers of transgenic soybean is discussed, although a larger number of samples need to be analyzed in order to validate this point. It is concluded that metabolomic procedures based on CE-MS can open new perspectives in the study of transgenic foods in order to corroborate (or not) the equivalence with their conventional counterparts.
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Herrero-Martínez JM, Oumada FZ, Rosés M, Bosch E, Ràfols C. Determination of flavonoid aglycones in several food samples by mixed micellar electrokinetic chromatography. J Sep Sci 2008; 30:2493-500. [PMID: 17654618 DOI: 10.1002/jssc.200700124] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The application of mixed micellar electrokinetic chromatography to the separation of ten flavonoid aglycones (catechin, epicatechin, naringenin, morin, fisetin, quercetin, kaempferol, galangin, apigenin, and chrysin) belonging to four different classes (flavanols, flavanones, flavonols, and flavones), and expected to be prominent in commonly consumed foods, has been developed. A micellar system composed of 25 mM SDS and 25 mM sodium cholate buffered at pH 7.0 provided a simultaneous separation of all compounds in less than 20 min. The procedure could be easily adapted to the determination of some flavonoids from each of these classes in real complex samples (propolis, Ginkgo biloba, etc.). The LODs of these compounds were in the range of 1.2-4 microg/mL, and the peak area and migration time repeatabilities were below 6.0 and 3.1%, respectively.
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11
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Bicard V, Fougerousse A, Brouillard R. ANALYSIS OF NATURAL ANTHOCYANINS BY CAPILLARY ZONE ELECTROPHORESIS IN ACIDIC MEDIA. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100101679] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- V. Bicard
- a Université Louis Pasteur , Laboratoire de Chimie des Polyphénols, UMR 7509 du CNRS, 4, rue Blaise Pascal, Strasbourg , F-67008 , France
| | - A. Fougerousse
- a Université Louis Pasteur , Laboratoire de Chimie des Polyphénols, UMR 7509 du CNRS, 4, rue Blaise Pascal, Strasbourg , F-67008 , France
| | - R. Brouillard
- a Université Louis Pasteur , Laboratoire de Chimie des Polyphénols, UMR 7509 du CNRS, 4, rue Blaise Pascal, Strasbourg , F-67008 , France
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12
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Maurício Duarte-Almeida J, Novoa AV, Linares AF, Lajolo FM, Inés Genovese M. Antioxidant activity of phenolics compounds from sugar cane (Saccharum officinarum L.) juice. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2006; 61:187-92. [PMID: 17123161 DOI: 10.1007/s11130-006-0032-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 09/20/2006] [Indexed: 05/11/2023]
Abstract
Phenolic compounds in sugar cane (Saccharum officinarum L.) juice were identified and quantified by analytical high performance liquid chromatography and photodiode array detection, showing the predominance of flavones (apigenin, luteolin and tricin derivatives), among flavonoids, and of hydroxycinnamic, caffeic and sinapic acids, among phenolic acids, representing a total content of around 160 mg/L. A tricin derivative was present in the highest proportion (>10% of the total). The phenolic extract obtained from sugar cane juice showed a protective effect against in vivo MeHgCl intoxication and potent inhibition of ex vivo lipoperoxidation of rat brain homogenates, indicating a potential use for beneficial health effects and/or therapeutic applications.
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Affiliation(s)
- Joaquim Maurício Duarte-Almeida
- Departamento de Alimentos e Nutrição Experimental, Universidade de São Paulo, Av. Prof. Lineu Prestes, 580, Bloco 14, Cep 05508-900, São Paulo, SP, Brazil
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13
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Payet B, Shum Cheong Sing A, Smadja J. Comparison of the concentrations of phenolic constituents in cane sugar manufacturing products with their antioxidant activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:7270-6. [PMID: 16968093 DOI: 10.1021/jf060808o] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Polyphenol content and free radical scavenging capacity of seven kinds of sugar manufacturing products (A sugars, clear juices, syrups, massecuite, and A, B, and C molasses) were studied. Seventy-two samples were collected at different stages of the process during two sugar harvests from a local sugar factory (Bois-Rouge, La Réunion). The total phenolic content of sugar products was determined according to the Folin-Ciocalteu assay. Polyphenols of sugar products were extracted with ethyl acetate and quantified by LC-UV-ESI-MS during all of the process. ABTS and DPPH assays were applied to aqueous solution of sugar products, which exhibited interesting free radical scavenging activity. Comparatively, ethyl acetate extracts exhibited higher antioxidant activity. Multivariate analyses (principal component analysis and canonical discriminant analysis) demonstrated a significant correlation between polyphenols and antioxidant activity. Moreover, it was observed that the sugar process results in an increase of the phenolic content and the free radical scavenging capacity of the different products. These products and especially molasses proved to be a rich source of natural antioxidants and may represent an interesting alternative to synthetic food antioxidants.
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Affiliation(s)
- Bertrand Payet
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 avenue René Cassin, 97715 Saint Denis Messag. Cedex 9, La Réunion, France.
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14
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Bridle P, García-Viguera C, Tomás-Barberán FA. Analysis of Anthocyanins by Capillary Zone Electrophoresis. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079608005518] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. Bridle
- a Lab Fitoquímica Dept. Ciencia y Tecnología de Alimentos , CEBAS-CSIC Apdo. Correos 4195, 30080, Murcia, Spain
| | - C. García-Viguera
- a Lab Fitoquímica Dept. Ciencia y Tecnología de Alimentos , CEBAS-CSIC Apdo. Correos 4195, 30080, Murcia, Spain
| | - F. A. Tomás-Barberán
- a Lab Fitoquímica Dept. Ciencia y Tecnología de Alimentos , CEBAS-CSIC Apdo. Correos 4195, 30080, Murcia, Spain
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15
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Colombo R, Lanças FM, Yariwake JH. Determination of flavonoids in cultivated sugarcane leaves, bagasse, juice and in transgenic sugarcane by liquid chromatography-UV detection. J Chromatogr A 2006; 1103:118-24. [PMID: 16310199 DOI: 10.1016/j.chroma.2005.11.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Revised: 10/31/2005] [Accepted: 11/03/2005] [Indexed: 10/25/2022]
Abstract
A high-performance liquid chromatography (HPLC) method with photo-diode array (DAD) detection was developed to separate and quantify flavonoids in sugarcane leaves and bagasse (= the crushed sugarcane refuse from juice extraction), and in sugarcane juice. Sugarcane flavonoids consist of a complex mixture of aglycones and glycosides (including flavonolignan glycosides), and the HPLC-UV method herein proposed is suitable for their quantification as total flavonoids. This method was applied to analyze samples of cultivated sugarcane, commercial juice and transgenic sugarcane leaves. Sugarcane leaves proved a promising source of flavonoids: an average of 1.10 mg of total flavonoids/g plant material was found in fresh leaves. Moreover, the flavonoid content of sugarcane juice (0.6 mg/mL) is comparable to other food sources of flavonoids previously reported. Transgenic sugarcane leaves ("Bowman-Birk" and "Kunitz") were compared with non-modified ("control") plant samples using the proposed HPLC-UV method, which indicated that the content of total flavonoids in transgenic plants is different from that in non-modified sugarcane.
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Affiliation(s)
- Renata Colombo
- Instituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 780, 13560-970 São Carlos, SP, Brazil
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16
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Payet B, Shum Cheong Sing A, Smadja J. Assessment of antioxidant activity of cane brown sugars by ABTS and DPPH radical scavenging assays: determination of their polyphenolic and volatile constituents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:10074-9. [PMID: 16366697 DOI: 10.1021/jf0517703] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Seven cane brown sugars (four from La Réunion, two from Mauritius, and one from France) were investigated for their polyphenol content and volatile composition in relation to their free radical scavenging capacity determined by ABTS and DPPH assays. The thin layer coated on the sugar crystal was extracted by Soxhlet extractor with dichloromethane. The volatile compounds of brown sugars were studied by GC-MS, and 43 compounds were identified. The total phenolic content of brown sugars was determined according to the Folin-Ciocalteu method. Phenolic compounds were quantified in the brown sugar extracts by LC-UV-ESI-MS. Brown sugar aqueous solutions exhibited weak free radical scavenging activity in the DPPH assay and higher antioxidant activity in the ABTS assay at relatively high concentration. The brown sugar extracts showed interesting free radical scavenging properties despite the low concentration of phenolic and volatile compounds. Sugar is a common foodstuff traditionally used for its sweetening properties, which might be accompanied by antioxidant properties arising from molecules (polyphenols, Maillard products) other than sucrose of the cane brown sugars.
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Affiliation(s)
- Bertrand Payet
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de la Réunion, 15 avenue René Cassin, B.P. 7151, 97715 Saint Denis Messag. Cedex 9, La Réunion, France
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17
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Colombo RA, Yariwake JH, Queiroz EF, Ndjoko K, Hostettmann K. On-line identification of sugarcane (Saccharum officinarum L.) methoxyflavones by liquid chromatography–UV detection using post-column derivatization and liquid chromatography–mass spectrometry. J Chromatogr A 2005; 1082:51-9. [PMID: 16038194 DOI: 10.1016/j.chroma.2005.01.083] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Sugarcane (Saccharum officinarum L., Gramineae) bagasse and leaves were investigated for their flavonoid content and transgenic sugarcane ("Bowman-Birk" and "Kunitz") was compared with non-modified ("control") plants. Analyses were carried out by high-performance liquid chromatography coupled to diode array UV detection (LC/UV), also using post-column addition of shift reagents, and tandem MS (atmospheric pressure chemical ionization-MS/MS and collision-induced dissociation-MS). On-line UV and MS data demonstrated the presence of methoxyflavone glycosides and aglycones in a total of seven compounds. Three naturally occurring flavones glycosides and two unusual erythro- and threo-diastereoisomeric flavolignan 7-O-glucosides were identified together with their aglycones.
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Affiliation(s)
- Renata a Colombo
- Instituto de Química de São Carlos, Universidade de São Paulo, Caixa Postal 780, 13560-970 São Carlos, SP, Brazil
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18
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Abstract
Applications of capillary electrophoresis (CE) for analysis of phytochemical substances (e.g. flavonoids, alkaloids, terpenoids, phenolic acid, quinones and coumarins) are reviewed. For example, CE analysis of sixteen tea ingredients were achieved within 10 min with the good precision (RSDs% <1% for intra-day and 2% for inter-day) and linearity (R(2)>0.990). Quantitation of sanguinarine and chelerythrine, alkaloids from Sanguinaria canadensis L. or Macleaya cordata (Wild) Br. R. by CE showed excellent linearity (R(2)>0.998), precision (RSD%=1.8%) and detection limit (2.4-3.0 microM). Determination of antraquinone-1-sulphonate was also obtained by this technique with good linearity (R(2)>0.9999), precision (RSD%=2%) and detection limit (0.7 microg/ml). Results of CE analysis from several studies are comparable to those of high performance liquid chromatography (HPLC), but the former is more useful for complex mixture samples where the analysis demands higher resolving power. Advantages of CE are high efficiency, low cost, short analysis time and simplicity, whereas disadvantages include low sensitivity comparing to HPLC and limitation of the preparative scale.
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Affiliation(s)
- Leena Suntornsuk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayudhaya Road, Rajathevee, Bangkok, Thailand.
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Abstract
One of the weak points of capillary electrophoresis is the need to implement rigorously sample pretreatment because its great impact on the quality of the qualitative and quantitative results provided. One of the approaches to solve this problem is through the symbiosis of automatic continuous flow systems (CFSs) and capillary electrophoresis (CE). In this review a systematic approach to CFS-CE coupling is presented and discussed. The design of the corresponding interface depends on three factors, namely: (a) the characteristics of the CFS involved which can be non-chromatographic and chromatographic; (b) the type of CE equipment: laboratory-made or commercially available; and (c) the type of connection which can be in-line (on-capillary), on-line or mixed off/on-line. These are the basic criteria to qualify the hyphenation of CFS (solid-phase extraction, dialysis, gas diffusion, evaporation, direct leaching) with CE described so far and applied to determine a variety of analytes in many different types of samples. A critical discussion allows one to demonstrate that this symbiosis is an important topic in research and development, besides separation and detection, to consolidate CE as a routine analytical tool.
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Affiliation(s)
- M Valcárcel
- Analytical Chemistry Division, University of Córdoba, Spain.
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Abstract
Capillary electrophoresis (CE) offers the analyst a number of key advantages for the analysis of the components of foods. CE offers better resolution than, say, high-performance liquid chromatography (HPLC), and is more adept at the simultaneous separation of a number of components of different chemistries within a single matrix. In addition, CE requires less rigorous sample cleanup procedures than HPLC, while offering the same degree of automation. However, despite these advantages, CE remains under-utilized by food analysts. Therefore, this review consolidates and discusses the currently reported applications of CE that are relevant to the analysis of foods. Some discussion is also devoted to the development of these reported methods and to the advantages/disadvantages compared with the more usual methods for each particular analysis. It is the aim of this review to give practicing food analysts an overview of the current scope of CE.
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Affiliation(s)
- R A Frazier
- Department of Food Science and Technology, The University of Reading, Whiteknights, UK.
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21
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Analysis of flavonols ofSedum telephium L. leaves by capillary electrophoresis and HPLC-mass spectrometry. Chromatographia 1999. [DOI: 10.1007/bf02490738] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Aussenac T, Lacombe S, Daydé J. Quantification of isoflavones by capillary zone electrophoresis in soybean seeds: effects of variety and environment. Am J Clin Nutr 1998; 68:1480S-1485S. [PMID: 9848520 DOI: 10.1093/ajcn/68.6.1480s] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Soybean isoflavones (genistin, daidzin, glycitin, and their malonyl forms and aglucons) are thought to be responsible for the astringent taste of soyfoods. Generally, HPLC with a methanol and water elution gradient is used for isoflavone quantification, but capillary zone electrophoresis (CZE) has been used more recently to separate several flavonoids in plant extracts. We present the results of CZE analysis of isoflavones in soybean extracts. Conditions for separation by using CZE were optimized for analysis of soybean isoflavones. We compared the results of extraction at different temperatures and with different compositions of solvent. Total extraction of isoflavones was not affected by temperature but was affected by composition of the solvent. Malonyl forms of isoflavones were thermally unstable. We analyzed the isoflavone content of different varieties of soybean seeds sown on different dates. Total isoflavone content varied among different varieties and with sowing dates. Interactions between the variety and the sowing date also affected isoflavone composition. We conclude that the variety of soybean seed and environmental growing conditions, such as sowing date, can contribute to seed quality by reducing its isoflavone content, modifying its isoflavone composition, or both.
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Affiliation(s)
- T Aussenac
- Laboratoire d'Agrophysiologie, ESA Purpan, Toulouse, France.
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Wätzig H, Degenhardt M, Kunkel A. Strategies for capillary electrophoresis: method development and validation for pharmaceutical and biological applications. Electrophoresis 1998; 19:2695-752. [PMID: 9870372 DOI: 10.1002/elps.1150191603] [Citation(s) in RCA: 157] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This review is in support of the development of selective, reproducible and validated capillary electrophoretis (CE) methods. Focusing on pharmaceutical and biological applications, the successful use of CE is demonstrated by more than 800 references, mainly from 1994 until 1998. Approximately 80 recent reviews have been catalogued. These articles sum up the existing strategies for method development in CE, especially in the search for generally accepted concepts, but also looking for new, promising reagents and ideas. General strategies for method development were derived not only with regard to selectivity and efficiency, but also with regard to precision, short analysis time, limit of detection, sample pretreatment requirements and validation. Standard buffer recipes, surfactants used in micellar electrokinetic capillary chromatography (MEKC), chiral selectors, useful buffer additives, polymeric separation media, electroosmotic flow (EOF) modifiers, dynamic and permanent coatings, actions to deal with complex matrices and aspects of validation are collected in 20 tables. Detailed schemes for the development of MEKC methods and chiral separations, for optimizing separation efficiency, means of troubleshooting, and other important information for key decisions during method development are given in 19 diagrams. Method development for peptide and protein separations, possibilities to influence the EOF and how to stabilize it, as well as indirect detection are considered in special sections.
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Affiliation(s)
- H Wätzig
- Institut für Pharmazie und Lebensmittelchemie, Würzburg, Germany.
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25
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Analysis of tetrandrine and fangchinoline in traditional Chinese medicines by capillary electrophoresis. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(98)00260-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Liang HR, Vuorela H, Vuorela P, Riekkola ML, Hiltunen R. Prediction of migration behaviour of flavonoids in capillary zone electrophoresis by means of topological indices. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(97)00958-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Larger P, Jones A, Dacombe C. Separation of tea polyphenols using micellar electrokinetic chromatography with diode array detection. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(97)01062-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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da Costa CT, Nelson BC, Margolis SA, Derek Horton. Separation of blackcurrant anthocyanins by capillary zone electrophoresis. J Chromatogr A 1998. [DOI: 10.1016/s0021-9673(97)01043-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Improved detection of alkaloids in crude extracts applying capillary electrophoresis with field amplified sample injection. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00804-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Morin P, Archambault J, André P, Dreux M, Gaydou E. Separation of hydroxylated and methoxylated flavonoids by micellar electrokinetic capillary chromatography. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(97)00774-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
Capillary electrophoresis (CE) and micellar electrokinetic chromatography were used for the separation of widely different compounds from natural materials including antibiotics, humic substances, flavonoids, isoflavonoids, illicit drugs, coumarins, alkaloids, steroids, Chinese herbal preparations, nicotine, caffeine, amphetamines, toxins such as aflatoxins B1, B2, G1, G2, mycotoxins, heptapeptide toxins and others, ephedrine compounds, mineral elements, and natural compounds in biological samples. A discussion of sample extraction and clean-up and the advantages of using CE is also presented.
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Affiliation(s)
- H J Issaq
- SAIC Frederick, NCI-Frederick Cancer Research and Development Center, MD 21702, USA.
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Davey MW, Bauw G, Van Montagu M. Simultaneous high-performance capillary electrophoresis analysis of the reduced and oxidised forms of ascorbate and glutathione. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1997; 697:269-76. [PMID: 9342680 DOI: 10.1016/s0378-4347(96)00536-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We describe here a procedure for the simultaneous analysis of the oxidised and reduced forms of the major cellular hydrophillic antioxidants, ascorbic acid (vitamin C) and glutathione (gamma-L-glutamyl-L-cysteinylglycine), by high-performance capillary electrophoresis. Separations are performed in uncoated fused-silica capillaries using 200 mmol/l borate pH 9.0, containing 20% (v/v) acetonitrile as the background electrolyte with fixed-wavelength UV absorbance detection at 185 nm. The influence of pH, organic solvent and other additives on the resolution of these compounds is described and we show that the optimised protocol is capable of simultaneously resolving other thiol components including, N-acetylcysteine and methyl-S-glutathione. The method is suitable for the analysis of these antioxidants in Arabidopsis and Nicotiana leaf tissue and is compatible with the use of the high ionic strength, acidic extraction solvents which are necessary to quench the redox equilibria of these labile components.
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Affiliation(s)
- M W Davey
- Department of Genetics, Flanders Interuniversity Institute for Biotechnology, Universiteit Gent, Belgium
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34
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Rosário Bronze M, Filipe Vilas Boas L, Pedro Belchoir A. Analysis of old brandy and oak extracts by capillary electrophoresis. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(96)01047-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Chapter 9 Capillary electrophoresis: Principles and applications. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0167-9244(97)80018-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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36
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Analysis of 5-hydroxy-7-methoxyflavones by normal-phase high-performance liquid chromatography. J Chromatogr A 1996. [DOI: 10.1016/0021-9673(96)00108-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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38
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Ferreres F, Andrade P, Gil MI, Tom�s-Barber�n FA. Floral nectar phenolics as biochemical markers for the botanical origin of heather honey. ACTA ACUST UNITED AC 1996. [DOI: 10.1007/bf01229682] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Moodley VE, Mulholland DA, Raynor MW. Micellar electrokinetic capillary chromatography of limonoid glucosides from citrus seeds. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(95)00648-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Gil MI, Ferreres F, Tomás-Barberán FA. Micellar Electrokinetic Capillary Chromatography of Methylated Flavone Aglycones. ACTA ACUST UNITED AC 1995. [DOI: 10.1080/10826079508010429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Chapter 8 High Performance Capillary Electrophoresis of Carbohydrates and Glycoconjugates. JOURNAL OF CHROMATOGRAPHY LIBRARY 1995. [DOI: 10.1016/s0301-4770(08)60513-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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42
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Studies of crude chloroform extract of roots ofPodophyllum emoddii var. chinesis Sprague by micellar electrokinetic chromatography. Chromatographia 1994. [DOI: 10.1007/bf02274583] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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44
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Separation of enantiomers and diastereomers of 4-hydroxy-2H-1,4-benzoxazin-3(4H)-one derivatives by capillary electrophoresis. Chromatographia 1994. [DOI: 10.1007/bf02269838] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Morin P, Dreux M. Factors Influencing the Separation of Ionic and Non-Ionic Chemical Natural Compounds in Plant Extracts by Capillary Electrophoresis. ACTA ACUST UNITED AC 1993. [DOI: 10.1080/10826079308019664] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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