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Kamińska A, Chwatko G. Estimation of Lipoyllysine Content in Meat and Its Antioxidative Capacity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10992-10999. [PMID: 32886880 PMCID: PMC7586328 DOI: 10.1021/acs.jafc.0c03778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
During this research a simple, accurate, and environmentally friendly method to determine lipoyllysine and lipoic acid in meat was developed and validated. The presented approach was based on the hydrolysis of the proteins containing lipoic acid, reduction of disulfide bonds with tris(hydroxymethyl)phosphine, and precolumn derivatization of free thiol groups with 1-benzyl-2-chloropyridinium bromide long-term followed by HPLC separation with a diode-array detector. The method has been validated in accordance with the U.S. FDA guidelines and was linear in the range of 0.1-10 μmol/L in concentration with R2 values ≥0.9997 for both analytes. For lipoyllysine and lipoic acid, intra- and interday precision values were lower than 10%. The intraday accuracy values ranged from 91.0% to 99.4% for lipoyllysine and from 99.1% to 107.3% for lipoic acid, whereas the interday accuracy values for lipoyllysine and lipoic acid were 92.0-95.6% and 93.5-98.8%, respectively. Additionally, in this research the antioxidant activity of lipoyllysine and reduced lipoyllysine compound using spectrophotometric method with 1,1-diphenyl-2-picrylhydrazyl was examined for the first time. The data showed that dihydrolipoyllysine exhibits stronger antioxidant capacity than lipoyllysine based on a lower value of concentration required to achieve a 50% antioxidant effect in 1,1-diphenyl-2-picrylhydrazyl radical scavenging test.
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Affiliation(s)
- Adrianna Kamińska
- Faculty of Chemistry, Department
of Environmental Chemistry, University of
Lodz, 163 Pomorska Str., 90-236 Łódź, Poland
| | - Grażyna Chwatko
- Faculty of Chemistry, Department
of Environmental Chemistry, University of
Lodz, 163 Pomorska Str., 90-236 Łódź, Poland
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Charoenkitamorn K, Chaiyo S, Chailapakul O, Siangproh W. Low-cost and disposable sensors for the simultaneous determination of coenzyme Q10 and α-lipoic acid using manganese (IV) oxide-modified screen-printed graphene electrodes. Anal Chim Acta 2017; 1004:22-31. [PMID: 29329705 DOI: 10.1016/j.aca.2017.12.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 12/13/2017] [Accepted: 12/15/2017] [Indexed: 10/18/2022]
Abstract
In this work, for the first time, manganese (IV) oxide-modified screen-printed graphene electrodes (MnO2/SPGEs) were developed for the simultaneous electrochemical detection of coenzyme Q10 (CoQ10) and α-lipoic acid (ALA). This sensor exhibits attractive benefits such as simplicity, low production costs, and disposability. Cyclic voltammetry (CV) was used to characterize the electrochemical behavior of the analyte and investigate the capacitance and electroactive surface area of the unmodified and modified electrode surfaces. The electrochemical behavior of CoQ10 and ALA on MnO2/SPGEs was also discussed. Additionally, square wave anodic stripping voltammetry (SWASV) was used for the quantitative determination of CoQ10 and ALA. Under optimal conditions, the obtained signals are linear in the concentration range from 2.0 to 75.0 μg mL-1 for CoQ10 and 0.3-25.0 μg mL-1 for ALA. The low limits of detection (LODs) were found to be 0.56 μg mL-1 and 0.088 μg mL-1 for CoQ10 and ALA, respectively. Moreover, we demonstrated the utility and applicability of the MnO2/SPGE sensor through simultaneous measurements of CoQ10 and ALA in dietary supplements. The sensor provides high accuracy measurements, exhibiting its high potential for practical applications.
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Affiliation(s)
- Kanokwan Charoenkitamorn
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Sudkate Chaiyo
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand; Center of Excellent of Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand.
| | - Weena Siangproh
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
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Li H, Kong Y, Chang L, Feng Z, Chang N, Liu J, Long J. Determination of Lipoic Acid in Biological Samples with Acetonitrile–Salt Stacking Method in CE. Chromatographia 2013. [DOI: 10.1007/s10337-013-2560-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Optimization of octanoic acid and sulfur donor concentrations for lipoic acid production by Pseudomonas reptilivora. Biotechnol Lett 2008; 30:1825-8. [DOI: 10.1007/s10529-008-9769-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Revised: 05/27/2008] [Accepted: 05/30/2008] [Indexed: 10/21/2022]
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5
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Selective and sensitive determination of lipoyllysine (protein-bound α-lipoic acid) in biological specimens by high-performance liquid chromatography with fluorescence detection. Anal Chim Acta 2008; 618:210-7. [DOI: 10.1016/j.aca.2008.05.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2007] [Revised: 04/30/2008] [Accepted: 05/01/2008] [Indexed: 11/21/2022]
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Haj-Yehia AI, Assaf P, Nassar T, Katzhendler J. Determination of lipoic acid and dihydrolipoic acid in human plasma and urine by high-performance liquid chromatography with fluorimetric detection. J Chromatogr A 2000; 870:381-8. [PMID: 10722093 DOI: 10.1016/s0021-9673(99)00857-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A highly sensitive method for the determination of alpha-lipoic acid (LA) and dihydrolipoic acid (DHLA) in human plasma and urine has been developed. Samples were acidified and extracted with organic solvent, and the free sulfhydryls of DHLA protected as the dicarboxyethylate by treatment with ethylchloroformate. The free carboxylic function of LA and the SH-protected DHLA were converted into their amide derivatives with the strong fluorophore 2-(4-aminophenyl)-6-methylbenzothiazole in the presence of a coupling agent and a base catalyst. The resulting fluorescent amides of both LA and DHLA were separated on a reversed-phase column (Ultrasphere C8) using simple isocratic elution with acetonitrile-water (80:20) and detected fluorimetrically (excitation 343, emission 423 nm). The method is highly sensitive, reproducible, and is easily applied for the simultaneous determination of LA and DHLA in biological samples.
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Affiliation(s)
- A I Haj-Yehia
- Department of Pharmaceutics, The David R. Bloom Center for Pharmacy, School of Pharmacy, Hebrew University of Jerusalem, Israel.
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7
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Kataoka H. Chromatographic analysis of lipoic acid and related compounds. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 717:247-62. [PMID: 9832248 DOI: 10.1016/s0378-4347(97)00628-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The analysis of lipoic acid and related compounds, such as its reduced form dihydrolipoic acid, its amide form lipoamide and other analogues, in biological and food samples is important in biochemistry, nutritional and clinical chemistry. This review summarizes the chromatographic methods for the determination of lipoic acid and related compounds, and their applications to various samples such as bacteria, tissues, drugs and food. Gas chromatographic methods with flame ionization detection and flame photometric detection are commonly used for the quantification of lipoic acid present as its protein-bound form, after acid or base hydrolysis of these samples. High-performance liquid chromatographic methods with ultraviolet, fluorescence and electrochemical detection are mainly used for the determination of free lipoic acid and related compounds, such as dihydrolipoic acid, lipoamide and other analogues. Moreover, gas chromatography-mass spectrometry and capillary electrophoresis methods are also developed.
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Affiliation(s)
- H Kataoka
- Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Japan
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Akiba S, Matsugo S, Packer L, Konishi T. Assay of protein-bound lipoic acid in tissues by a new enzymatic method. Anal Biochem 1998; 258:299-304. [PMID: 9570844 DOI: 10.1006/abio.1998.2615] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new enzymatic method for the determination of protein-bound lipoic acid was established. Bound lipoyl groups were liberated in the form of lipoyllysine by protease digestion and assayed by lipoamide dehydrogenase (NADH:lipoamide oxidoreductase, EC 1.8.1.4)-mediated NADH oxidation. NADH oxidation was coupled to reduction of the lipoyl disulfide group. Fluorescence kinetics of NADH oxidation were markedly enhanced by the addition of glutathione disulfide, recycling the enzyme-mediated lipoyl/dihydrolipoyl conversion. In the presence of a large excess of glutathione disulfide, NADH oxidation follows pseudo-first-order kinetics in terms of lipoyllysine concentration. A good linear correlation is obtained between the oxidation rate and lipoyllysine concentration up to 5 microM and the calibration curve indicates that the detection limit could be 100 nM lipoyllysine. The method was applied to protease lysates of bovine, rat, and rabbit tissues to determine lipoyllysine levels. Kidney and liver were found to have the highest content of lipoyllysine in the range of 3.9 to 4.6 nmol/g rat or rabbit wet tissue or 11.6 to 13.1 nmol/g bovine acetone powder.
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Affiliation(s)
- S Akiba
- Department of Radiochemistry-Biophysics, Niigata College of Pharmacy, Japan
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Kataoka H, Hirabayashi N, Makita M. Analysis of lipoic acid by gas chromatography with flame photometric detection. Methods Enzymol 1997; 279:166-76. [PMID: 9211268 DOI: 10.1016/s0076-6879(97)79020-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- H Kataoka
- Faculty of Pharmaceutical Sciences, Okayama University, Japan
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Hermann R, Niebch G, Borbe H, Fieger-Büschges H, Ruus P, Nowak H, Riethmüller-Winzen H, Peukert M, Blume H. Enantioselective pharmacokinetics and bioavailability of different racemic α-lipoic acid formulations in healthy volunteers. Eur J Pharm Sci 1996. [DOI: 10.1016/0928-0987(95)00045-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Legastelois S, Thomas V, Quash G, Métais MP, Tebib J, Moreira A, Monier JC. Naturally occurring antibodies reacting with lipoic acid: screening method, characterization and biochemical interest. J Immunol Methods 1994; 171:111-9. [PMID: 8176232 DOI: 10.1016/0022-1759(94)90234-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The development of a covalent enzyme-linked immunoassay (CELIA) using lipoic acid covalently bound to modified polystyrene microplates has permitted the detection, in the sera of normal BALB/c mice, of natural antibodies reacting with lipoic acid (LA). Hybridomas producing monoclonal anti-LA antibodies were obtained from splenocytes of non-immune BALB/c mice. Two of them, of IgM isotype, recognized LA but failed to react with dihydrolipoic acid (DHLA, the reduced form of LA), suggesting that the integrity of the dithiolane ring was of importance for antibody recognition. They did not give positive reactions with other disulfide linked biological molecules such as oxidized glutathione or cystine. Anti-LA antibodies, coated on polystyrene microplates, were used for the detection of free LA in a competitive assay based on peroxidase-LA conjugate.
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Affiliation(s)
- S Legastelois
- Laboratoire d'Immunologie, Faculté de Médecine Alexis Carrel, Lyon, France
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Kataoka H, Hirabayashi N, Makita M. Analysis of lipoic acid in biological samples by gas chromatography with flame photometric detection. JOURNAL OF CHROMATOGRAPHY 1993; 615:197-202. [PMID: 8335698 DOI: 10.1016/0378-4347(93)80333-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A selective and sensitive gas chromatographic method for the analysis of lipoic acid in biological samples has been developed. After base hydrolysis of the sample, the liberated lipoic acid was converted into its S,S-diethoxycarbonyl methyl ester derivative and measured by gas chromatography using a DB-210 capillary column and a flame photometric detector. The calibration curve was linear in the range 20-500 ng, and the detection limit was ca. 50 pg injected. The best hydrolysis conditions for the biological samples were obtained by using 2 M potassium hydroxide containing 4% bovine serum albumin at 110 degrees C for 3 h. Using this method, lipoic acid in the hydrolysate could be selectively determined without any interference from matrix substances. Analytical results for the determination of lipoic acid in the mouse tissue and bacterial cell samples are presented.
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Affiliation(s)
- H Kataoka
- Faculty of Pharmaceutical Sciences, Okayama University, Japan
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Mattulat A, Baltes W. Determination of lipoic acid in meat of commercial quality. ZEITSCHRIFT FUR LEBENSMITTEL-UNTERSUCHUNG UND -FORSCHUNG 1992; 194:326-9. [PMID: 1598790 DOI: 10.1007/bf01193214] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
For the quantitative determination of lipoic acid in meat a sensitive GC/MS method in the chemical ionisation mode with methane as reactant gas has been developed. Firstly, the cleavage of protein-bound lipoic acid from the epsilon-amino group of lysine residues was optimized by hydrolysing the synthesized model compound epsilon-lipoyllysine with several organic and inorganic acids and proteolytic enzymes. The concentrations of lipoyllysine and lipoic acid during this test hydrolysis were monitored by HPLC. Optimum hydrolytic conditions were heating at 120 degrees C in 2 mol H2SO4 for seven hours. After tissue hydrolysis, the lipoic acid in the hydrolysate was separated by a diethylether/sodium bicarbonate/diethylether extraction and then derivatised for GC with MBDSTFA. The highest amounts of lipoic acid in meat of commercial quality were detected in liver, heart and kidney whereas in muscle tissues its content was lower.
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Affiliation(s)
- A Mattulat
- Institut für Lebensmittelchemie der TU Berlin, Federal Republic of Germany
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MacLean AI, Bachas LG. Homogeneous enzyme immunoassay for lipoic acid based on the pyruvate dehydrogenase complex: a model for an assay using a conjugate with one ligand per subunit. Anal Biochem 1991; 195:303-7. [PMID: 1750684 DOI: 10.1016/0003-2697(91)90334-p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A homogeneous enzyme immunoassay for lipoic acid was developed by using an enzyme-ligand conjugate containing only one ligand per enzyme subunit. Theoretical studies have shown that the traditional use of multisubstituted enzyme-ligand conjugates has limited the detection limits and sensitivity obtainable with these assays. The use of conjugates with a smaller number of ligands should allow for improved assays. The pyruvate dehydrogenase complex was chosen for this study because each polypeptide chain of dihydrolipoyl transacetylase contains one lipoic acid as a covalently attached prosthetic group. Thus, the naturally occurring enzyme can be considered as an enzyme-lipoic acid conjugate. Anti-lipoic acid antibodies were developed in New Zealand White rabbits to be used as the analyte-specific binders. Association and binder dilution curves were prepared in order to optimize the reagent concentrations and the analytical conditions. Unexpected inhibition by free lipoic acid resulted in a biphasic dose-response curve with a detection limit of 5 x 10(-6) M lipoic acid. This technique has several advantages over previous electrochemical and chromatographic techniques for lipoic acid determination.
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Affiliation(s)
- A I MacLean
- Department of Chemistry, University of Kentucky, Lexington 40506-0055
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Kamata K, Akiyama K. High-performance liquid chromatography with electrochemical detection for the determination of thioctic acid and thioctic acid amide. J Pharm Biomed Anal 1990; 8:453-6. [PMID: 2081208 DOI: 10.1016/0731-7085(90)80075-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- K Kamata
- Tokyo Metropolitan Research Laboratory of Public Health, Japan
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Lipoic acid and diabetes: Effect of dihydrolipoic acid administration in diabetic rats and rabbits. J Biosci 1984. [DOI: 10.1007/bf02702855] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kresze GB, Ronft H. Pyruvate dehydrogenase complex from baker's yeast. 1. Purification and some kinetic and regulatory properties. EUROPEAN JOURNAL OF BIOCHEMISTRY 1981; 119:573-9. [PMID: 7030740 DOI: 10.1111/j.1432-1033.1981.tb05646.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Pyruvate dehydrogenase complex, for the first time, was highly purified from commercial baker's yeast (saccharomyces cerevisiae). Proteolytic degradation was prevented by the inclusion of the protease inhibitors pepstatin A, leupeptin, and phenylmethanesulfonyl fluoride during the enzyme purification. The yield from 1 kg of pressed yeast was about 15--20 mg enzyme with a specific activity of 17--30 U/mg. Most of the kinetic and regulatory properties of the yeast enzyme were found similar to those of the mammalian mitochondrial pyruvate dehydrogenase complexes except that Km for pyruvate, when assayed at the pH optimum, was much higher than in the mammalian complexes and resembled the values reported for the complexes of gram-negative bacteria. Furthermore, neither in yeast homogenates nor in the isolated yeast pyruvate dehydrogenase complex, was any evidence found for regulation by interconversion (phosphorylation-dephosphorylation) as occurs in mammals, plants, and Neurospora crassa.
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Shih JC, Steinsberger SC. Determination of lipoic acid in chick livers and chicken eggs during incubation. Anal Biochem 1981; 116:65-8. [PMID: 6795967 DOI: 10.1016/0003-2697(81)90322-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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