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Chen L, De Longhi E, Pons A, Buffeteau T, Daugey N, Redon P, Shinkaruk S, Darriet P. Identification, Quantitation, and Sensory Evaluation of Thiols in Bordeaux Red Wine with Characteristic Aging Bouquet. J Agric Food Chem 2023; 71:16248-16259. [PMID: 37862129 DOI: 10.1021/acs.jafc.3c05854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Great Bordeaux red wines are known for their distinctive aging bouquet. However, the nature of volatile chemicals underpinning this sensory expression is not fully understood. This work investigated the empyreumatic aging bouquet of a collection of premium Bordeaux red wines using silver-ion (Ag+) solid-phase extraction, cryogenic heart-cutting multidimensional gas chromatography mass spectrometry/olfactometry, and comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry. In doing so, a substantial number of "meaty" odors were revealed. Three detected "meaty" notes were tentatively or unequivocally attributed to furan thiols. Among them, 2-methyltetrahydrofuran-3-thiol (1) with a pleasant "meaty" aroma was reported in wine for the first time. Its trans isomer (trans-1a) was resolved from its racemate by chemical modification, which confirmed its presence in wine. The odor detection threshold of trans-1a in the model wine was determined at 55 ng/L. Moreover, an additive effect between 1 and literature-known 2-methyl-3-furanthiol was observed. By a new ultra high-performance liquid chromatography quadrupole Orbitrap high-resolution mass spectrometry method, the concentration of trans-1a, in addition to those of 2-methyl-3-furanthiol and 2-furfuryl thiol, was measured in the wines at ng/L levels.
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Affiliation(s)
- Liang Chen
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
| | - Emilio De Longhi
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
- Department of Microbiology and Biochemistry, Hochschule Geisenheim University, Von-Lade-Strasse, 1, 65366 Geisenheim, Germany
| | - Alexandre Pons
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
- Seguin Moreau France, Z.I. Merpins, BP 94, 16103 Cognac, France
| | - Thierry Buffeteau
- Université de Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France
| | - Nicolas Daugey
- Université de Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France
| | - Pascaline Redon
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
| | - Svitlana Shinkaruk
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
- Université de Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France
| | - Philippe Darriet
- Université de Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France
- Bordeaux Sciences Agro, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33170 Gradignan, France
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Courregelongue M, Shinkaruk S, Prida A, Darriet P, Pons A. Identification and Distribution of New Impact Aldehydes in Toasted Oak Wood ( Quercus petraea). J Agric Food Chem 2022; 70:11667-11677. [PMID: 36069166 DOI: 10.1021/acs.jafc.2c01828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The purpose of this study was to identify aroma compounds associated with the toasting intensity of oak wood (Quercus petraea). Crude organic extracts from oak wood samples (toasted at different temperature-time couples) were analyzed by a sensory-guided approach using GC-O-TOFMS, followed by purification with semipreparative HPLC (reverse phase). This approach revealed two specific odorous zones (OZs) reminiscent of metal and puff pastry. The first OZ was identified as trans-4,5-epoxy-(E)-2-decenal (1) by coinjection of the commercial product, whereas identification of (2E,4E,6Z)-nonatrienal (2) associated with puff pastry OZ was validated by a multistep chemical synthesis approach (Wittig reaction) followed by semipreparative HPLC purification (chiral phase). Their detection thresholds in model wine solution were 60 ng/L (1) and 16 ng/L (2). Their distribution in toasted oak wood samples [GC-NCI-MS (NH3) analysis] ranged from some ng/g to 210 ng/g for (1) and 85 ng/g for (2). Finally, additional sensory experiments demonstrated the impact of newly identified aldehydes in toasted oak wood.
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Affiliation(s)
- Marie Courregelongue
- Tonnellerie Seguin Moreau, Cognac France 16100, France
- UMR ŒNOLOGIE (OENO)─ISVV─UMR 1366─Université de Bordeaux─INRAE─Bordeaux INP, Villenave d'Ornon Cedex 33882, France
| | - Svitlana Shinkaruk
- UMR ŒNOLOGIE (OENO)─ISVV─UMR 1366─Université de Bordeaux─INRAE─Bordeaux INP, Villenave d'Ornon Cedex 33882, France
| | - Andrei Prida
- Tonnellerie Seguin Moreau, Cognac France 16100, France
| | - Philippe Darriet
- UMR ŒNOLOGIE (OENO)─ISVV─UMR 1366─Université de Bordeaux─INRAE─Bordeaux INP, Villenave d'Ornon Cedex 33882, France
| | - Alexandre Pons
- Tonnellerie Seguin Moreau, Cognac France 16100, France
- UMR ŒNOLOGIE (OENO)─ISVV─UMR 1366─Université de Bordeaux─INRAE─Bordeaux INP, Villenave d'Ornon Cedex 33882, France
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3
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León-Janampa N, Shinkaruk S, Gilman RH, Kirwan DE, Fouquet E, Szlosek M, Sheen P, Zimic M. Biorecognition and detection of antigens from Mycobacterium tuberculosis using a sandwich ELISA associated with magnetic nanoparticles. J Pharm Biomed Anal 2022; 215:114749. [PMID: 35447489 DOI: 10.1016/j.jpba.2022.114749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 10/18/2022]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB), is one of the 10 leading causes of death worldwide, especially in low-income areas. A rapid, low-cost diagnostic assay for TB with high sensitivity and specificity is not currently available. Bio-functionalized magnetic nanoparticles (MNPs) which are able to efficiently detect and concentrate biomolecules from complex biological samples, allows improving the diagnostic immunoassays. In this way, a proof-of-concept of MNP-based sandwich immunoassay was developed to detect various MTB protein antigens. The superficial and secretory antigenic proteins considered in this research were: CFP10, ESAT6, MTC28, MPT64, 38 kDa protein, Ag85B, and MoeX. The proteins were cloned and expressed in an E. coli system. Polyclonal antibodies (ab) against the recombinant antigens were elicited in rabbits and mice. Antibodies were immobilized on the surface of amine-silanized nanoparticles (MNP@Si). The functionalized MNP@Si@ab were tested in a colorimetric sandwich enzyme-linked immunosorbent assay (sELISA-MNP@Si@ab) to recognize the selected antigens in sputum samples. The selected MTB antigens were successfully detected in sputum from TB patients in a shorter time (~ 4 h) using the sELISA-MNP@Si@ab, compared to the conventional sELISA (~15 h) standardized in home. Moreover, the sELISA-MNP@Si@ab showed the higher sensitivity in the real biological samples from infected patients.
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Affiliation(s)
- Nancy León-Janampa
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru; Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Svitlana Shinkaruk
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Robert H Gilman
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
| | - Daniela E Kirwan
- Institute for Infection & Immunity, St. George's, University of London, London, United Kingdom.
| | - Eric Fouquet
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Magali Szlosek
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Patricia Sheen
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Mirko Zimic
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.
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Ferron PD, Thibon C, Shinkaruk S, Darriet P, Allamy L, Pons A. Aromatic Potential of Bordeaux Grape Cultivars: Identification and Assays on 4-Oxononanoic Acid, a γ-Nonalactone Precursor. J Agric Food Chem 2020; 68:13344-13352. [PMID: 32955257 DOI: 10.1021/acs.jafc.0c04171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
γ-Nonalactone has been demonstrated to be a chemical marker of dried/cooked fruit nuances detected in must and wine, but little is known about its formation pathways. Therefore, on the basis of the literature, we hypothesized 4-oxononanoic acid as a potential precursor. Using dichloromethane extraction followed by gas chromatography coupled to negative chemical ionization mass spectrometry, this keto acid was identified and quantified in Merlot and Cabernet Sauvignon musts. Its concentration ranged from traces to 60 μg/L. The biotransformation of 4-oxononanoic acid into γ-nonalactone by Saccharomyces cerevisiae during alcoholic fermentation was demonstrated using labeled d6-4-oxononanoic acid. Additional experiments shed light on the 4-oxononanoic acid role as a γ-nonalactone precursor and revealed that this biotransformation was (R)-enantioselective. Sensory and distribution studies of the enantiomers revealed that the detection threshold of R and S forms were 66 and 35 μg/L and the average ratio of R/S in grape and wine was 94:6 and 65:35.
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Affiliation(s)
- Philippine de Ferron
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
| | - Cécile Thibon
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
| | - Svitlana Shinkaruk
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
- Université de Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France
| | - Philippe Darriet
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
| | - Lucille Allamy
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
| | - Alexandre Pons
- Université de Bordeaux, INRAE, Unite de Recherche Œnologie, EA 4577, USC 1366 INRAE, ISVV, 33882 Villenave d'Ornon Cedex, France
- Seguin Moreau France, Z.I. Merpins, B.P. 94, 16103 Cognac, France
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León-Janampa N, Zimic M, Shinkaruk S, Quispe-Marcatoma J, Gutarra A, Le Bourdon G, Gayot M, Changanaqui K, Gilman RH, Fouquet E, Sheen P, Szlosek M. Synthesis, characterization and bio-functionalization of magnetic nanoparticles to improve the diagnosis of tuberculosis. Nanotechnology 2020; 31:175101. [PMID: 31931490 DOI: 10.1088/1361-6528/ab6ab1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mycobacterium tuberculosis is the cause of one of the diseases with the highest mortality and morbidity rate in the Americas and in the world. In developing countries, the diagnosis of tuberculosis (TB) is based on baciloscopy and bacteriological cultures. The first method has a low sensitivity, and the second can take several weeks to reach a confirmatory diagnosis. The lack of a rapid diagnosis compromises the efforts to control this disease and favors the transmission of tuberculosis to the susceptible population. In this work, we present the synthesis, amine-silanization, characterization and bio-functionalization of magnetic nanoparticles (MNPs) to develop a sandwich ELISA to detect and concentrate antigens from M. tuberculosis. For this purpose, a recombinant mycobacterial heat shock protein Hsp16.3, which contributes to the persistence of TB, was cloned and expressed in the E. coli system. Polyclonal antibodies anti-Hsp16.3 were produced in a rabbit and in mice. Magnetic nanoparticles were synthesized by co-precipitation, amine-functionalized and characterized by several physical-chemical methods. The XRD, Mossbauer spectroscopy, zeta potential, TEM, and FTIR all proved the successful preparation of the MNPs showing a diffraction crystal diameter of 10.48 ± 2.56 nm, superficial net charge of [Formula: see text]: +23.57 ± 2.87 mV, characteristic patterns of magnetite and a structure similar to a sphere. Additionally, it showed a magnetization saturation of 37.06 emu.g-1. For the functionalization of nanoparticle surfaces with anti-Hsp16.3, the active ester method was used for bond formation, and parameters such as time of incubation, coupling agents ratio (EDC/NHS) and concentration as well as surface saturation level of amine-silanized MNPs (MNP@Si@NH2) were standardized. Finally, bio-functionalized MNPs were used to detect, fix and concentrate the recombinant antigen Hsp16.3 from M. tuberculosis in a sandwich ELISA-MNP assay.
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Affiliation(s)
- Nancy León-Janampa
- Laboratorio de Bioinformática y Biología Molecular. Facultad de Ciencias y Filosofía. Universidad Peruana Cayetano Heredia, Lima, Peru. Univ. Bordeaux, ISM, Institut des Sciences Moléculaires, UMR 5255 CNRS, 33405 Talence, France
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Abstract
Volatile extractive compounds from high-quality oak wood (Quercus sp.) are responsible for important pleasant olfactory notes, such as coconut, wood, vanilla, caramel, and spice. Recently, a new off-flavor reminiscent of rancid butter has been detected in oak wood. Using gas chromatography-olfactometry (GC-O) coupled to several detection modes, such as nitrogen-phosphorus detection (GC-O-NPD) or mass spectrometry (GC-O-MS) and multidimensional GC-O coupled to time-of-flight mass spectrometry, six compounds containing nitrogen atoms were identified. The volatiles were suggested to belong to 2,5-disubstituted pyrazines family, which was confirmed by comparison with synthetic reference compounds. For this purpose, symmetric and dissymmetric 2,5-dialkylpyrazines were prepared from methyl esters of corresponding aliphatic amino acids (Val, Leu, and Ile) by a three-step, one-pot reaction under mild reducing conditions. Organoleptic descriptors and odor detection thresholds were also determined, whereas a bacterial origin explaining these off-flavors was hypothesized.
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Affiliation(s)
- Svitlana Shinkaruk
- Univ. Bordeaux, Unité de recherche Œnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 , 33400 Talence , France
| | - Morgan Floch
- Univ. Bordeaux, Unité de recherche Œnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
| | - Andréi Prida
- Seguin Moreau France , Z.I. Merpins , B.P. 94, F-16103 Cognac , France
| | - Philippe Darriet
- Univ. Bordeaux, Unité de recherche Œnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
| | - Alexandre Pons
- Univ. Bordeaux, Unité de recherche Œnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
- Seguin Moreau France , Z.I. Merpins , B.P. 94, F-16103 Cognac , France
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Thibaud F, Shinkaruk S, Darriet P. Quantitation, Organoleptic Contribution, and Potential Origin of Diethyl Acetals Formed from Various Aldehydes in Cognac. J Agric Food Chem 2019; 67:2617-2625. [PMID: 30777432 DOI: 10.1021/acs.jafc.9b01084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cognac wine distillate (WD), especially that produced during aging, is marked by complex and elegant aroma. This work aimed at expanding the knowledge on the Cognac WD aroma by a sensory-guided approach, involving a fractional-distillation technique and gas chromatography coupled to olfactometry and mass spectrometry (GC-O-MS). In doing so, a fruity-odor zone was highlighted in WD extracts that was attributed to the diethyl acetal family. Ten additional diethyl acetals were detected by GC-MS. Next, an assay method was developed and validated for seven of these diethyl acetals. Their detection thresholds were evaluated in a model solution of water/ethanol (60:40, v/v). 1,1-Diethoxy-3-methylbutane was shown to present a significant organoleptic impact because its olfactory-detection threshold (323 μg/L) is lower than its range of concentrations in WD (461 to 3337 μg/L). Given that diethyl acetals result from reactions between ethanol and aldehydes, quantitative correlations between diethyl acetals and corresponding aldehydes were considered.
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Affiliation(s)
- Fannie Thibaud
- Université de Bordeaux, Unité de recherche CEnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
| | - Svitlana Shinkaruk
- Université de Bordeaux, Unité de recherche CEnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
- Université de Bordeaux, ISM, Institut des Sciences Moléculaires, UMR 5255 CNRS , 33405 Talence , France
| | - Philippe Darriet
- Université de Bordeaux, Unité de recherche CEnologie, EA 4577, USC 1366 INRA, ISVV , 33882 Villenave d'Ornon cedex , France
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Lozinski O, Bennetau-Pelissero C, Shinkaruk S. The Synthetic and Biological Aspects of Prenylation as the Versatile Tool for Estrogenic Activity Modulation. ChemistrySelect 2017. [DOI: 10.1002/slct.201700863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Oleg Lozinski
- Chemistry Department; Taras Shevchenko National University of Kyiv; 01033 Kyiv Ukraine
- Univ. Bordeaux; Institut of Molecular Sciences, CNRS UMR 5255, F-; 33405 Talence France
| | | | - Svitlana Shinkaruk
- Univ. Bordeaux; Institut of Molecular Sciences, CNRS UMR 5255, F-; 33405 Talence France
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Lozan E, Shinkaruk S, Al Abed SA, Lamothe V, Potier M, Marighetto A, Schmitter JM, Bennetau-Pelissero C, Buré C. Derivatization-free LC-MS/MS method for estrogen quantification in mouse brain highlights a local metabolic regulation after oral versus subcutaneous administration. Anal Bioanal Chem 2017; 409:5279-5289. [DOI: 10.1007/s00216-017-0473-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/04/2017] [Accepted: 06/16/2017] [Indexed: 11/29/2022]
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Boltovets P, Shinkaruk S, Vellutini L, Snopok B. Self-tuning interfacial architecture for Estradiol detection by surface plasmon resonance biosensor. Biosens Bioelectron 2016; 90:91-95. [PMID: 27886605 DOI: 10.1016/j.bios.2016.11.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/31/2016] [Accepted: 11/03/2016] [Indexed: 01/10/2023]
Abstract
This study reports the operation principles for reusable SPR biosensors utilizing nanoscale-specific electrostatic levitation phenomena in their sensitive layer design. Functional macromolecular building blocks localized near the "charged" surface by a variety of weak electrostatic interactions create a flexible and structurally variable architecture. A proof-of-concept is demonstrated by an immunospecific detection of 17β-Estradiol (E2) following the competitive inhibition format. The sensing interfacial architecture is based on the BSA-E2 conjugate within the BSA matrix immobilized on the "charged" (as a result of guanidine thiocyanate treatment) gold surface at pH 5.0. Kinetic analysis for different E2 concentrations shows that using parameter β of the stretched exponential function ~(1-exp(-(t/τ)β) as an analyte-specific response measure allows one to substantially decrease the low detection limit (down to 10-3ng/ml) and increase the dynamic range (10-3-103ng/ml) of the SPR biosensor. Finally, it's concluded that the created interfacial architecture is a typical complex system, where SPR response is formed by the stochastic interactions within the whole variety of processes in the system. The E2 addition destroys the uniformity of the reaction space (where an interaction of the antibody (Ab) and the analog of E2 in the self-tuneable matrix takes place) by the redistribution of the immunospecific complexes Ab(E2)x (x=0, 1, 2) dependent on E2 concentration. Binding dynamics changes are reflected in the values of β which summarize in compact form all "hidden" information specific for the evolving distributed interfacial system.
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Affiliation(s)
- Praskoviya Boltovets
- V. Lashkaryov Institute of Semiconductor Physics, NAS Ukraine, 41 Prospect Nauki, Kyiv 03028, Ukraine
| | - Svitlana Shinkaruk
- University Bordeaux, UMR 5255, ISM, F-33000 Bordeaux, France; INSERM, U862, Neurocentre Magendie, F-33000 Bordeaux, France
| | - Luc Vellutini
- University Bordeaux, UMR 5255, ISM, F-33000 Bordeaux, France; CNRS, UMR 5255, ISM, F-33405 Talence, France
| | - Borys Snopok
- V. Lashkaryov Institute of Semiconductor Physics, NAS Ukraine, 41 Prospect Nauki, Kyiv 03028, Ukraine.
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Abstract
Vanillylthiol, a chemical compound reminiscent of clove and smoke, has been identified for the first time in young red and dry white wines. The chemical structure of this new aroma was confirmed by original chemical synthesis. Vanillylthiol was prepared by a two-step procedure from vanillin. The conversion of vanillin to divanillyl disulfide was easily achieved by treatment with an inorganic sulfur-donor reagent. Reduction of the disulfide gave the target thiol in good yield. The quantification of vanillylthiol in wine was performed by nonspecific liquid/liquid extraction (CH2Cl2), separation of the volatile compounds using gas chromatography, and specific detection using tandem mass spectrometry (triple quadrupole). Vanillylthiol was found particularly in young wines aged in new oak barrels. These wines contained between a few 50 ng/L to more than 8300 ng/L. The highest levels were found in red wines aged 12 months in new oak barrels. Given its perception threshold in a wine model solution (3.8 μg/L), vanillylthiol may contribute to the spicy, clove-like flavor of red wines aged in oak barrels.
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Affiliation(s)
- Morgan Floch
- Univ. Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, F-33882 Villenave d'Ornon, France
- Seguin Moreau France , Z.I. Merpins, B.P. 94, F-16103 Cognac, France
| | - Svitlana Shinkaruk
- Univ. Bordeaux, CNRS, UMR 5255 ISM, 351 Cours de la Libération, F-33405 Talence Cedex, France
- Bordeaux Sciences Agro , 1 Cours du Général de Gaulle, F-33175 Gradignan, France
| | - Philippe Darriet
- Univ. Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, F-33882 Villenave d'Ornon, France
| | - Alexandre Pons
- Univ. Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, F-33882 Villenave d'Ornon, France
- Seguin Moreau France , Z.I. Merpins, B.P. 94, F-16103 Cognac, France
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Thibon C, Böcker C, Shinkaruk S, Moine V, Darriet P, Dubourdieu D. Identification of S-3-(hexanal)-glutathione and its bisulfite adduct in grape juice from Vitis vinifera L. cv. Sauvignon blanc as new potential precursors of 3SH. Food Chem 2015; 199:711-9. [PMID: 26776028 DOI: 10.1016/j.foodchem.2015.12.069] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 12/16/2015] [Accepted: 12/16/2015] [Indexed: 11/26/2022]
Abstract
Two main precursors (S-3-(hexan-1-ol)-l-cysteine and S-3-(hexan-1-ol)-l-glutathione) of 3-sulfanylhexanol (3SH, formerly named 3-mercaptohexanol) have been identified so far in grape juice but a correlation between precursor concentrations in grape juices and 3SH concentrations in wines is not always observed. This suggests that there may be other compounds associated with the aromatic potential. In this work, S-3-(hexanal)-glutathione (Glut-3SH-Al) and its bisulfite (Glut-3SH-SO3) adduct were identified in Sauvignon blanc grape juice by liquid chromatography coupled to Fourier transform mass spectrometry experiments. A partial purification of the compounds was carried out by Medium Pressure Liquid Chromatography (MPLC) on the reverse phase using 5L of grape juice. The addition of synthetized Glut-3SH-Al and Glut-3SH-SO3 in the synthetic medium induced a significant release of 3SH after fermentation. Moreover, we demonstrate that Glut-3SH-Al and its bisulfite adduct are present in grape juice and could be considered as new direct 3SH precursors with molar conversion yields close to 0.4%.
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Affiliation(s)
- Cécile Thibon
- INRA, ISVV, USC 1366 Œnologie, FR-33140 Villenave d'Ornon, France; Univ. de Bordeaux, ISVV, EA4577 Œnologie, FR-33140 Villenave d'Ornon, France.
| | - Caroline Böcker
- Univ. de Bordeaux, ISVV, EA4577 Œnologie, FR-33140 Villenave d'Ornon, France; Biolaffort, F33100 Bordeaux, France
| | - Svitlana Shinkaruk
- Univ. de Bordeaux, Bordeaux Sciences Agro, CS 40201, Bordeaux FR-33000, France
| | | | - Philippe Darriet
- Univ. de Bordeaux, ISVV, EA4577 Œnologie, FR-33140 Villenave d'Ornon, France
| | - Denis Dubourdieu
- Univ. de Bordeaux, ISVV, EA4577 Œnologie, FR-33140 Villenave d'Ornon, France
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Shinkaruk S, Durand M, Lamothe V, Carpaye A, Martinet A, Chantre P, Vergne S, Nogues X, Moore N, Bennetau-Pelissero C. Bioavailability of glycitein relatively to other soy isoflavones in healthy young Caucasian men. Food Chem 2012; 135:1104-11. [PMID: 22953831 DOI: 10.1016/j.foodchem.2012.03.135] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 03/03/2012] [Accepted: 03/16/2012] [Indexed: 11/20/2022]
Abstract
Glycitein is a Selective Estradiol Receptor Modulator (SERM) from soy. The study reports plasma bioavailability and urine excretion of glycitein compared to other soy isoflavones after a unique intake of food supplement based on soy germ containing 55.24mg isoflavones. Eighteen plasma and urinary sampling profiles collected over 48h from healthy young Caucasian men were analysed using specific ELISAs. Eight profiles contained equol. Glycitein T(max), C(max), AUC(0→24h) and T(½) in plasma were calculated. Urine T(max), % of excretion at 24h and clearance were assessed. Glycitein is one of the best absorbed flavonoids. Plasma steady-state level can be achieved by several intakes a day. Glycitein bioavailability is similar to that of daidzein and its urinary excretion is significantly higher than that of genistein. Equol does not affect glycitein bioavailability. Knowing glycitein bioavailability in man is essential for the development of soy-germ-based food supplements for health applications.
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Affiliation(s)
- Svitlana Shinkaruk
- Univ. Bordeaux, Neurocentre Magendie, Physiopathologie de la plasticité neuronale, U862, F-33000 Bordeaux, France
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Dorey R, Piérard C, Shinkaruk S, Tronche C, Chauveau F, Baudonnat M, Béracochéa D. Membrane mineralocorticoid but not glucocorticoid receptors of the dorsal hippocampus mediate the rapid effects of corticosterone on memory retrieval. Neuropsychopharmacology 2011; 36:2639-49. [PMID: 21814189 PMCID: PMC3230488 DOI: 10.1038/npp.2011.152] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study was aimed at determining the type of the glucocorticoid membrane receptors (mineralocorticoid receptors (MRs) or glucocorticoid receptors (GRs)) in the dorsal hippocampus (dHPC) involved in the rapid effects of corticosterone or stress on memory retrieval. For that purpose, we synthesized corticosterone-3-O-carboxymethyloxime-bovine serum albumin conjugate (Cort-3CMO-BSA) conjugate (a high MW complex that cannot cross the cell membrane) totally devoid of free corticosterone, stable in physiological conditions. In a first experiment, we evidenced that an acute stress (electric footshocks) induced both a dHPC corticosterone rise measured by microdialysis and memory retrieval impairment on delayed alternation task. Both the endocrinal and cognitive effects of stress were blocked by metyrapone (a corticosterone synthesis inhibitor). In a second experiment, we showed that bilateral injections of either corticosterone or Cort-3CMO-BSA in dHPC 15 min before memory testing produced impairments similar to those resulting from acute stress. Furthermore, we showed that anisomycin (a protein synthesis inhibitor) failed to block the deleterious effect of Cort-3CMO-BSA on memory. In a third experiment, we evidenced that intra-hippocampal injection of RU-28318 (MR antagonist) but not of RU-38486 (GR antagonist) totally blocked the Cort-3CMO-BSA-induced memory retrieval deficit. In a fourth experiment, we demonstrated that RU-28318 administered 15 min before stress blocked the stress-induced memory impairments when behavioral testing occurred 15 min but not 60 min after stress. Overall, this study provides strong in vivo evidence that the dHPC membrane GRs, mediating the rapid and non-genomic effects of acute stress on memory retrieval, are of MR but not GR type.
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Affiliation(s)
- Rodolphe Dorey
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine (INCIA) UMR 5287, Universités de Bordeaux, Talence, France,Institut de Recherche Biomédicale des Armées (IRBA)—Unité Fatigue et Vigilance, Brétigny sur Orge, France
| | - Christophe Piérard
- Institut de Recherche Biomédicale des Armées (IRBA)—Unité Fatigue et Vigilance, Brétigny sur Orge, France
| | - Svitlana Shinkaruk
- U862 Inserm Physiopathologie de la plasticité neuronale, Institut François Magendie, Universités de Bordeaux, Bordeaux, France,ENITA de Bordeaux, Gradignan, France
| | - Christophe Tronche
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine (INCIA) UMR 5287, Universités de Bordeaux, Talence, France,Institut de Recherche Biomédicale des Armées (IRBA)—Unité Fatigue et Vigilance, Brétigny sur Orge, France
| | - Frédéric Chauveau
- Institut de Recherche Biomédicale des Armées (IRBA)—Unité Fatigue et Vigilance, Brétigny sur Orge, France
| | - Mathieu Baudonnat
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine (INCIA) UMR 5287, Universités de Bordeaux, Talence, France
| | - Daniel Béracochéa
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine (INCIA) UMR 5287, Universités de Bordeaux, Talence, France,CNRS, Institut de Neurosciences Cognitives et Integratives d'Aquitaine (INCIA) UMR 5287, Universités de Bordeaux, Talence 33400, France. Tel: +33 54 000 2439; Fax: +33 54 000 8743; E-mail:
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Boltovets P, Shinkaruk S, Bennetau-Pelissero C, Bennetau B, Snopok B. The effect of low pH on the glycitein–BSA conjugate interaction with specific antiserum: Competitive inhibition study using surface plasmon resonance technique. Talanta 2011; 84:867-73. [DOI: 10.1016/j.talanta.2011.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 02/02/2011] [Accepted: 02/14/2011] [Indexed: 11/26/2022]
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Pons M, Dauphin B, La Guerche S, Pons A, Lavigne-Cruege V, Shinkaruk S, Bunner D, Richard T, Monti JP, Darriet P. Identification of impact odorants contributing to fresh mushroom off-flavor in wines: incidence of their reactivity with nitrogen compounds on the decrease of the olfactory defect. J Agric Food Chem 2011; 59:3264-3272. [PMID: 21384879 DOI: 10.1021/jf104215a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Analysis of wines from different grape varieties marked by sometimes intense aromatic nuances of fresh mushroom was performed by gas chromatography coupled with olfactometry. This analysis has led to the identification of several odoriferous zones, which were recalling a fresh mushroom odor. Two trace compounds responsible for these odoriferous zones, 1-nonen-3-one and 1-octen-3-one, have been identified and their content has been determined by using either a multidimensional gas chromatography technique coupled to olfactometry and mass spectrometry detection (in the case of 1-nonen-3-one) or the preparation of the derivative with O-2,3,4,5,6-pentafluorobenzylhydroxylamine hydrochloride in the presence of the deuterated form, as the internal standard (in the case of 1-octen-3-one), then gas chromatography coupled to mass spectrometry detection. The assays allowed the quantification of these compounds at concentration levels sometimes well above their detection and recognition olfactory threshold. We show that adding nitrogen compounds to the altered wines, such as an amino acid (glycine) or a tripeptide (glutathione), led to lower concentrations of 1-octen-3-one in wines and diminished smell of fresh mushrooms. The study of the reaction in a model medium, whose composition is close to wine, by liquid chromatography coupled to mass spectrometry demonstrated the formation of adducts between 1-octen-3-one and glycine, and 1-octen-3-one and glutathione characterized by NMR.
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Affiliation(s)
- Monique Pons
- USC Œnologie, INRA-Université Bordeaux Segalen-IPB, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, 210 chemin de Leysotte, CS 50008, 33882 Villenave d'Ornon cedex, France
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Sarrazin E, Shinkaruk S, Pons M, Thibon C, Bennetau B, Darriet P. Elucidation of the 1,3-sulfanylalcohol oxidation mechanism: an unusual identification of the disulfide of 3-sulfanylhexanol in sauternes botrytized wines. J Agric Food Chem 2010; 58:10606-10613. [PMID: 20857980 DOI: 10.1021/jf102022s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A four-step purification method was developed to isolate a citrus odorant detected by gas chromatography-olfactometry (GC-O), which was apparently specific to Sauternes botrytized wines. A fragmentation pattern of the odorant was obtained by multidimensional gas chromatography-mass spectrometry-olfactometry (MDGC-MS-O). The exact mass measurement was used to determine its elemental formula as C(6)H(12)OS. On the basis of these data, the unusual structure of 3-propyl-1,2-oxathiolane was synthesized and characterized for the first time. This confirmed its identification. Its occurrence in Sauternes wine extracts was demonstrated to result from the thermal oxidative degradation of 3-sulfanylhexanol disulfide (3,3'-disulfanediyldihexan-1-ol) in the GC injector. This disulfide was synthesized and then firmly identified for the first time in Sauternes wine. Although the presence of 3-sulfanylhexanol oxidation products had previously been reported in natural extracts (but not wine), the full oxidation pathway from 3-sulfanylhexanol to 3-propyl-γ-sultine via 3,3'-disulfanediyldihexan-1-ol was clearly established for the first time. Because the disulfide has mainly been detected in Sauternes botrytized wines, this finding suggested a singular reactivity of 3-sulfanylhexanol in botrytized wines, thus opening up a wide range of new opportunities in wine chemistry.
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Affiliation(s)
- Elise Sarrazin
- UMR INRA 1219 Œnologie, Institut des Sciences de la Vigne et du Vin, Université Victor Segalen Bordeaux II, 210 Chemin de Leysotte, CS 5008, F-33882 Villenave d'Ornon, France.
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Shinkaruk S, Carreau C, Flouriot G, Bennetau-Pelissero C, Potier M. Comparative effects of R- and S-equol and implication of transactivation functions (AF-1 and AF-2) in estrogen receptor-induced transcriptional activity. Nutrients 2010; 2:340-54. [PMID: 22254026 PMCID: PMC3257646 DOI: 10.3390/nu2030340] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 02/20/2010] [Accepted: 02/25/2010] [Indexed: 12/22/2022] Open
Abstract
Equol, one of the main metabolites of daidzein, is a chiral compound with pleiotropic effects on cellular signaling. This property may induce activation/inhibition of the estrogen receptors (ER) a or b, and therefore, explain the beneficial/deleterious effects of equol on estrogen-dependent diseases. With its asymmetric centre at position C-3, equol can exist in two enantiomeric forms (R- and S-equol). To elucidate the yet unclear mechanisms of ER activation/inhibition by equol, we performed a comprehensive analysis of ERa and ERb transactivation by racemic equol, as well as by enantiomerically pure forms. Racemic equol was prepared by catalytic hydrogenation from daidzein and separated into enantiomers by chiral HPLC. The configuration assignment was performed by optical rotatory power measurements. The ER-induced transactivation by R- and S-equol (0.1–10 µM) and 17b-estradiol (E2, 10 nM) was studied using transient transfections of ERα and ERβ in CHO, HepG2 and HeLa cell lines. R- and S-equol induce ER transactivation in an opposite fashion according to the cellular context. R-equol and S-equol are more potent in inducing ERα in an AF-2 and AF-1 permissive cell line, respectively. Involvement of ERα transactivation functions (AF-1 and AF-2) in these effects has been examined. Both AF-1 and AF-2 are involved in racemic equol, R-equol and S-equol induced ERα transcriptional activity. These results could be of interest to find a specific ligand modulating ER transactivation and could contribute to explaining the diversity of equol actions in vivo.
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Affiliation(s)
- Svitlana Shinkaruk
- ENITA de Bordeaux, Unité Micronutriments Reproduction Santé, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan cedex, France; (S.S); (C.C.); (C.B.-P.)
| | - Charlotte Carreau
- ENITA de Bordeaux, Unité Micronutriments Reproduction Santé, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan cedex, France; (S.S); (C.C.); (C.B.-P.)
| | - Gilles Flouriot
- CNRS UMR 6026, 35042, Equipe "Récepteur des œstrogènes et destinée cellulaire", Rennes cedex, France;
| | - Catherine Bennetau-Pelissero
- ENITA de Bordeaux, Unité Micronutriments Reproduction Santé, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan cedex, France; (S.S); (C.C.); (C.B.-P.)
| | - Mylène Potier
- ENITA de Bordeaux, Unité Micronutriments Reproduction Santé, 1 Cours du Général de Gaulle, CS 40201, F-33175 Gradignan cedex, France; (S.S); (C.C.); (C.B.-P.)
- Author to whom correspondence should be addressed:
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Candelon N, Shinkaruk S, Bennetau B, Bennetau-Pelissero C, Dumartin ML, Degueil M, Babin P. New approach to asymmetrically substituted methoxypyrazines, derivatives of wine flavors. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.088] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Thibon C, Shinkaruk S, Jourdes M, Bennetau B, Dubourdieu D, Tominaga T. Aromatic potential of botrytized white wine grapes: Identification and quantification of new cysteine-S-conjugate flavor precursors. Anal Chim Acta 2010; 660:190-6. [DOI: 10.1016/j.aca.2009.10.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2009] [Revised: 10/08/2009] [Accepted: 10/10/2009] [Indexed: 10/20/2022]
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Benthami K, Lyazidi SA, Haddad M, Choukrad M, Bennetau B, Shinkaruk S. Photophysics of Genistein isoflavone: Solvent and concentration effects studied by UV-visible spectroscopy and theoretical simulation. Spectrochim Acta A Mol Biomol Spectrosc 2009; 74:385-390. [PMID: 19620021 DOI: 10.1016/j.saa.2009.06.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Revised: 05/15/2009] [Accepted: 06/08/2009] [Indexed: 05/28/2023]
Abstract
Genistein isoflavone is shown to exist in two different conformations which are the 90 degrees completely twisted geometry and the 50 degrees less twisted one. Specific interactions with the solvent cage as well as self-association processes seem shifting the isoflavone from the perpendicular conformation towards the less twisted one. The theoretical simulation, using analytical atom-atom pair potential, predicts a self-dimer in a slipped non-sandwich, face to river, perpendicular structure. From the UV-visible photophysics investigations it is revealed that monomeric species cannot exist alone even at very low solute concentration (approximately 10(-6) M), the self-association process occurs already in this concentration range.
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Affiliation(s)
- K Benthami
- Laboratoire de Spectrométrie, des Matériaux et Archéomatériaux (LASMAR), Université Moulay Ismail, Faculté des Sciences, B.P 11201 Zitoune, Meknès, Morocco
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Takoi K, Degueil M, Shinkaruk S, Thibon C, Maeda K, Ito K, Bennetau B, Dubourdieu D, Tominaga T. Identification and characteristics of new volatile thiols derived from the hop (Humulus luplus L.) cultivar Nelson Sauvin (dagger). J Agric Food Chem 2009; 57:2493-502. [PMID: 19243103 DOI: 10.1021/jf8034622] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nelson Sauvin (NS) is a unique hop cultivar that was bred and grown in New Zealand. This hop gives a specific flavor (exotic fruit-like, white wine-like) to finished beers. However, the key compounds of this flavor have not yet been identified. We have attempted to identify the specific flavor compounds derived from NS. We focused on certain volatile thiols that are well-known to contribute to wine flavors, especially Sauvignon Blanc. The product made from NS (NS product) lost its specific flavor by contact with copper. Copper is well-known as an absorber of thiols in the field of wine flavor investigations. Therefore, it might point to the existence of thiols. We analyzed the NS product by GC-FPD, GC-olfactometry and GC-MS, and identified two new volatile thiols, 3-sulfanyl-4-methylpentan-1-ol (3S4MP), and 3-sulfanyl-4-methylpentyl acetate (3S4MPA). These compounds have a grapefruit-like and/or rhubarb-like odor, similar to that of Sauvignon Blanc. We quantified these compounds in the NS products and determined their thresholds. As a result, 3S4MP contained about 2-fold of its threshold in beers, and 3S4MPA was included below its threshold. However, it was confirmed that 3S4MP enhanced the flavors of 3S4MPA by synergy. Therefore, we concluded that both of the new volatile thiols would contribute to the specific odor of beers produced with NS.
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Affiliation(s)
- Kiyoshi Takoi
- Frontier Laboratories of Value Creation, Sapporo Breweries Ltd, Yaizu, Shizuoka, Japan
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Shinkaruk S, Bennetau B, Babin P, Schmitter JM, Lamothe V, Bennetau-Pelissero C, Urdaci MC. Original preparation of conjugates for antibody production against Amicoumacin-related anti-microbial agents. Bioorg Med Chem 2008; 16:9383-91. [DOI: 10.1016/j.bmc.2008.08.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Revised: 07/31/2008] [Accepted: 08/04/2008] [Indexed: 10/21/2022]
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Shinkaruk S, Lamothe V, Schmitter JM, Fructus A, Sauvant P, Vergne S, Degueil M, Babin P, Bennetau B, Bennetau-Pelissero C. Synthesis of haptens and conjugates for ELISA of glycitein: development and validation of an immunological test. J Agric Food Chem 2008; 56:6809-17. [PMID: 18646854 DOI: 10.1021/jf800663s] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Two carboxylic acid haptens of glycitein were synthesized, with a spacer arm at the C2 position. They differed in the length of the spacer arm, with the length of the spacer arms being three or four carbon atoms, and were named Delta3-glycitein and Delta4-glycitein haptens, respectively. The different haptens were coupled to bovine serum albumin (BSA), and the coupling efficiency was assessed by MALDI mass spectrometry. Polyclonal antibodies were generated against the BSA conjugates. An additional conjugate of Delta4-glycitein hapten was generated with swine thyroglobulin (Thyr). Enzyme-linked immunosorbent assays (ELISAs) based on the competition between free glycitein and Delta4-glycitein-Thyr conjugates for specific antibodies were developed. The IC50 of the standard curves was 15.6 ng mL(-1) with anti-Delta3-glycitein and 62.5 ng mL(-1) with anti-Delta4-glycitein, that is, 10.9 and 44 pmol/well, respectively. With the Delta3-glycitein antibody, interassay and intra-assay variations were 12.2 and 11.5%, respectively. Specificity tests did not show any significant cross-reaction with any other soy isoflavone. This specificity is not influenced by the length of the spacer arm. The assay was validated by measurements performed on plasma samples as well as on soy-based foodstuffs and on soy-based food supplements.
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Affiliation(s)
- Svitlana Shinkaruk
- Université de Bordeaux, EA 2975 UBX1-UBX2-ENITA de Bordeaux, F-33405, France
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Shinkaruk S, Thibon C, Schmitter JM, Babin P, Tominaga T, Degueil M, Desbat B, Jussier C, Bennetau B, Dubourdieu D, Bennetau-Pelissero C. Surprising Structural Lability of a Cysteine-S-Conjugate Precursor of 4-Methyl-4-sulfanylpentan-2-one, a Varietal Aroma in Wine ofVitis vinifera L. cv. Sauvignon Blanc. Chem Biodivers 2008; 5:793-810. [DOI: 10.1002/cbdv.200890076] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Thibon C, Shinkaruk S, Tominaga T, Bennetau B, Dubourdieu D. Analysis of the diastereoisomers of the cysteinylated aroma precursor of 3-sulfanylhexanol in Vitis vinifera grape must by gas chromatography coupled with ion trap tandem mass spectrometry. J Chromatogr A 2008; 1183:150-7. [DOI: 10.1016/j.chroma.2007.12.082] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Revised: 12/17/2007] [Accepted: 12/21/2007] [Indexed: 10/22/2022]
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Sarrazin E, Shinkaruk S, Tominaga T, Bennetau B, Frérot E, Dubourdieu D. Odorous impact of volatile thiols on the aroma of young botrytized sweet wines: identification and quantification of new sulfanyl alcohols. J Agric Food Chem 2007; 55:1437-44. [PMID: 17249683 DOI: 10.1021/jf062582v] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Specific extraction of volatile thiols using sodium p-hydroxymercuribenzoate revealed the presence of three new sulfanylalcohols in wines made from Botrytis-infected grapes: 3-sulfanylpentan-1-ol (II), 3-sulfanylheptan-1-ol (III), and 2-methyl-3-sulfanylbutan-1-ol (IV). The first two have citrus aromas, whereas the third is reminiscent of raw onion. In addition, 2-methyl-3-sulfanylpentan-1-ol, which has a raw onion odor, was tentatively identified. Like 3-sulfanylhexan-1-ol (I), already reported in Sauternes wines, compounds II, III, and IV were absent from must. They were found in wine after alcoholic fermentation, and their concentrations were drastically higher when Botrytis cinerea had developed on the grapes. In the commercial botrytized wines analyzed, the mean levels of II, III, and IV were 209, 51, and 103 ng/L, respectively. Despite their low odor activity values, sensory tests showed additive effects among I, II, and III, thus confirming their olfactory impact on the overall aroma of botrytized wines.
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Affiliation(s)
- Elise Sarrazin
- Faculté d'Oenologie, Institut des Sciences de la Vigne et du Vin, UMR 1219, INRA, Université Victor Segalen Bordeaux 2, 351 cours de la Libération, 33405 Talence Cedex, France
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Shinkaruk S, Bayle M, Laïn G, Déléris G. Vascular endothelial cell growth factor (VEGF), an emerging target for cancer chemotherapy. Curr Med Chem Anticancer Agents 2003; 3:95-117. [PMID: 12678905 DOI: 10.2174/1568011033353452] [Citation(s) in RCA: 147] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Angiogenesis is a process of development and of growth of new capillary blood vessels from pre-existing vessels. When pathological, it contributes to the development of numerous types of tumors, and the formation of metastases. In order to grow, carcinoma need new blood vessels to form so that they can feed themselves. Therefore, nowadays the concept according to which the development of cancer is angiogenesis dependent is generally recognized. This concept makes the control of tumoral angiogenesis one of the promising therapeutic ways in cancerology. The transition from the latent phase to the invasive and metastatic phase of a cancer is linked to what is called the angiogenic switch. It implies complex cellular and molecular interactions between cancerous cells, endothelial cells and the components of the extra-cellular matrix and namely the existence of specific proteins secreted by the tumoral cells able to stimulate the proliferation of capillary endothelial cells. Among them, VEGF, Vascular Endothelial Growth Factor was found in several types of tumors. It has shown a tumoral angiogenic activity in vitro and in vivo, and thus is a privileged target for the control of angiogenesis in an anti-tumoral goal. The role of VEGF in tumoral angiogenesis has been extensively studied. It has been proved to undergo as well autocrine as paracrine stimulation of tumoral angiogenesis. During the last few years, several members of the VEGF family have been described namely the VEGF-A, B, C, D, E and placenta growth factor (PlGF) among which VEGF-A (121 aminoacids) plays a role of prime importance in angiogenesis. VEGF is a 45 kDA glycoprotein, homodimeric, basic, and able to bind heparin. The three-dimensional structure of VEGF has been recently determined, by X-rays diffraction, and NMR spectroscopy. The different forms of the VEGF bind to receptors that exhibit a tyrosine-kinase activity (RTK). The specific action of the VEGF on the endothelial cells is mainly regulated by two types of RTK of the VEGF family, VEGFR1, or Flt-1, and VEGFR2, or KDR/Flk-1. Mutagenesis studies have shown that only a small number of VEGF residues are important and essential for the binding with RTK. Data described to date from the studies of VEGF/RTK interactions agree to the hypothesis that KDR receptor is the main human receptor responsible for the VEGF activity in both physiological and pathological vascular development, and VEGF-KDR signalling pathway has been validated as a priority target for the development of anti- and pro- angiogenic agents. Therefore angiogenesis mediated by VEGF constitutes a new target for anti-cancer therapy which has explored through different ways of intervention aiming at the blocking of the tumoral angiogenesis. The main ones are: -Struggle against the stroma degradation and invasion by the neo-vessels -Inhibition of activated endothelial cells. -Inhibition of angiogenic factors production and of their receptors. -Inhibition of the VEGF signal pathway, by peptides blocking the bond between VEGF and its receptors through the inhibition of intracellular transduction of VEGF signal. In conclusion, this bibliographic study allows to situate works of medicinal chemistry in the context of present knowledge concerning the vascular endothelial growth factor (VEGF) and its role in angiogenesis.
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Affiliation(s)
- S Shinkaruk
- INSERM U443 Bio-Organic Chemistry Group, University Victor Segalen Bordeaux 2, F33076 Bordeaux Cedex France
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