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Valdés A, Álvarez-Rivera G, Socas-Rodríguez B, Herrero M, Cifuentes A. Capillary electromigration methods for food analysis and Foodomics: Advances and applications in the period February 2019-February 2021. Electrophoresis 2021; 43:37-56. [PMID: 34473359 DOI: 10.1002/elps.202100201] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/17/2021] [Accepted: 08/30/2021] [Indexed: 12/11/2022]
Abstract
This work presents a revision of the main applications of capillary electromigration methods in food analysis and Foodomics. Articles that were published during the period February 2019-February 2021 are included. The work shows the multiple CE methods that have been developed and applied to analyze different types of molecules in foods. Namely, CE methods have been applied to analyze amino acids, biogenic amines, carbohydrates, chiral compounds, contaminants, DNAs, food additives, heterocyclic amines, lipids, secondary metabolites, peptides, pesticides, phenols, pigments, polyphenols, proteins, residues, toxins, vitamins, small organic and inorganic compounds, as well as other minor compounds. The last results on the use of CE for monitoring food interactions and food processing, including recent microchips developments and new applications of CE in Foodomics, are discussed too. The new procedures of CE to investigate food quality and safety, nutritional value, storage and bioactivity are also included in the present review work.
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Gaspar DP, Lechtenberg M, Hensel A. Quality Assessment of Bilberry Fruits ( Vaccinium myrtillus) and Bilberry-Containing Dietary Supplements. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:2213-2225. [PMID: 33587635 DOI: 10.1021/acs.jafc.0c07784] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bilberries (Vaccinium myrtillus) are used to treat non-specific diarrhea and for symptoms related to varicose veins. Because they are quite expensive fruits, quality problems and compositional fraud might occur for dietary supplements. This study investigated fresh/dried bilberries and dietary supplements by high-performance liquid chromatography (HPLC) fingerprinting against a quantified bilberry reference extract for identity testing and to test total anthocyanin content by HPLC and for quantification of hydrolyzable and condensed tannins. Protocols were detecting improper drying/storage and adulteration with other Vaccinium species or elderberries. The majority (91%) of dried bilberries from different sources proved to be of good overall quality. Investigation of dietary supplements revealed major problems, with 45% of unacceptable quality (e.g., bilberry-free products, nearly anthocyanin/tannin-free products, and samples being falsified with anthocyanins from other sources). Three representative samples of bilberry juices were shown to have good quality in all tested parameters. Increased analytical efforts must be implemented to improve product quality.
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Affiliation(s)
- Dan Plecenik Gaspar
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Matthias Lechtenberg
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
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Martínková E, Křížek T, Kubíčková A, Coufal P. Mobilization of electroosmotic flow markers in capillary zone electrophoresis. Electrophoresis 2021; 42:932-938. [PMID: 33570209 DOI: 10.1002/elps.202000301] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 11/11/2022]
Abstract
UV-absorbing neutral substances are commonly used as markers of mean electroosmotic flow in capillary electrophoresis for their zero electrophoretic mobility in an electric field. However, some of these markers can interact with background electrolyte components and migrate at a different velocity than the electroosmotic flow. Thus, we tested 11 markers primarily varying in their degree of methylation and type of central atom in combination with five background electrolyte cations differing in their ionic radii and surface charge density, measuring the relative electrophoretic mobility using thiourea as a reference marker. Our results from this set of experiments showed some general trends in the mobilization of the markers based on the effects of marker structure and type of background electrolyte cation on the relative electrophoretic mobility. As an example, the effects of an inadequate choice of marker on analyte identification were illustrated in the electrophoretic separation of glucosinolates. Therefore, our findings may help electrophoretists appropriately select electroosmotic flow markers for various electrophoretic systems.
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Affiliation(s)
- Eva Martínková
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Tomáš Křížek
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Anna Kubíčková
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Pavel Coufal
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
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Bělonožníková K, Vaverová K, Vaněk T, Kolařík M, Hýsková V, Vaňková R, Dobrev P, Křížek T, Hodek O, Čokrtová K, Štípek A, Ryšlavá H. Novel Insights into the Effect of Pythium Strains on Rapeseed Metabolism. Microorganisms 2020; 8:microorganisms8101472. [PMID: 32992822 PMCID: PMC7650609 DOI: 10.3390/microorganisms8101472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
Pythium oligandrum is a unique biological control agent. This soil oomycete not only acts as a mycoparasite, but also interacts with plant roots and stimulates plant defense response via specific elicitors. In addition, P. oligandrum can synthetize auxin precursors and stimulate plant growth. We analyzed the secretomes and biochemical properties of eleven Pythium isolates to find a novel and effective strain with advantageous features for plants. Our results showed that even closely related P. oligandrum isolates significantly differ in the content of compounds secreted into the medium, and that all strains secrete proteins, amino acids, tryptamine, phenolics, and hydrolytic enzymes capable of degrading cell walls (endo-β-1,3-glucanase, chitinase, and cellulase), exoglycosidases (especially β-glucosidase), proteases, and phosphatases. The most different strain was identified as a not yet described Pythium species. The changes in metabolism of Brassica napus plants grown from seeds coated with the tested Pythium spp. were characterized. Enhanced levels of jasmonates, ethylene precursor, and salicylic acid may indicate better resistance to a wide variety of pathogens. Glucosinolates, as defense compounds against insects and herbivores, were enhanced in young plants. Altogether, P. oligandrum strains varied in their life strategies, and either they could perform equally as plant growth promoters and mycoparasites or they had developed one of these strategies better.
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Affiliation(s)
- Kateřina Bělonožníková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (K.V.); (V.H.)
| | - Kateřina Vaverová
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (K.V.); (V.H.)
| | - Tomáš Vaněk
- Biopreparáty, spol. s r.o., Tylišovská 1, 160 00 Prague 6, Czech Republic; (T.V.); (A.Š.)
| | - Miroslav Kolařík
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague 4, Czech Republic;
- Department of Botany, Faculty of Science, Charles University, Benátská 2, 128 01 Prague 2, Czech Republic
| | - Veronika Hýsková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (K.V.); (V.H.)
| | - Radomíra Vaňková
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Rozvojová 263, 165 02 Prague 6, Czech Republic; (R.V.); (P.D.)
| | - Petre Dobrev
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Rozvojová 263, 165 02 Prague 6, Czech Republic; (R.V.); (P.D.)
| | - Tomáš Křížek
- Department of Analytical chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (T.K.); (O.H.); (K.Č.)
| | - Ondřej Hodek
- Department of Analytical chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (T.K.); (O.H.); (K.Č.)
| | - Kateřina Čokrtová
- Department of Analytical chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (T.K.); (O.H.); (K.Č.)
| | - Adam Štípek
- Biopreparáty, spol. s r.o., Tylišovská 1, 160 00 Prague 6, Czech Republic; (T.V.); (A.Š.)
| | - Helena Ryšlavá
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (K.V.); (V.H.)
- Correspondence:
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Yang S, Ma S, Zhu K, Wang M, Li J, Arabi M, Liu H, Li Y, Chen L. Simultaneous enrichment/determination of six sulfonamides in animal husbandry products and environmental waters by pressure-assisted electrokinetic injection coupled with capillary zone electrophoresis. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103462] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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