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Zerva A, Pentari C, Termentzi A, America AHP, Zouraris D, Bhattacharya SK, Karantonis A, Zervakis GI, Topakas E. Discovery of two novel laccase-like multicopper oxidases from Pleurotus citrinopileatus and their application in phenolic oligomer synthesis. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:83. [PMID: 33794981 PMCID: PMC8017616 DOI: 10.1186/s13068-021-01937-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/20/2021] [Indexed: 05/13/2023]
Abstract
BACKGROUND Laccases and laccase-like multicopper oxidases (LMCOs) oxidize a vast array of phenolic compounds and amines, releasing water as a byproduct. Their low substrate specificity is responsible for their tremendous biotechnological interest, since they have been used for numerous applications. However, the laccases characterized so far correspond to only a small fraction of the laccase genes identified in fungal genomes. Therefore, the knowledge regarding the biochemistry and physiological role of minor laccase-like isoforms is still limited. RESULTS In the present work, we describe the isolation, purification and characterization of two novel LMCOs, PcLac1 and PcLac2, from Pleurotus citrinopileatus. Both LMCOs were purified with ion-exchange chromatographic methods. PcLac2 was found to oxidize a broader substrate range than PcLac1, but both LMCOs showed similar formal potentials, lower than those reported previously for laccases from white-rot fungi. Proteomic analysis of both proteins revealed their similarity with other well-characterized laccases from Pleurotus strains. Both LMCOs were applied to the oxidation of ferulic and sinapic acid, yielding oligomers with possible antioxidant activity. CONCLUSIONS Overall, the findings of the present work can offer new insights regarding the biochemistry and variability of low-redox potential laccases of fungal origin. Low-redox potential biocatalysts could offer higher substrate selectivity than their high-redox counterparts, and thus, they could be of applied value in the field of biocatalysis.
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Affiliation(s)
- A Zerva
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str, Zografou Campus, Athens, Greece
| | - C Pentari
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str, Zografou Campus, Athens, Greece
| | - A Termentzi
- Department of Ophthalmology/Bascom Palmer Eye Institute, University of Miami, Miami, FL, 33136, USA
| | - A H P America
- Wageningen Plant Research, Wageningen University and Research, Wageningen, The Netherlands
| | - D Zouraris
- Laboratory of Physical Chemistry and Applied Electrochemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Athens, Greece
| | - S K Bhattacharya
- Department of Ophthalmology/Bascom Palmer Eye Institute, University of Miami, Miami, FL, 33136, USA
| | - A Karantonis
- Laboratory of Physical Chemistry and Applied Electrochemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Athens, Greece
| | - G I Zervakis
- Laboratory of General and Agricultural Microbiology, Agricultural University of Athens, Athens, Greece
| | - E Topakas
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str, Zografou Campus, Athens, Greece.
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Zhang D, Li J, Ruan D, Chen Z, Zhu W, Shi Y, Chen K, Li Y, Wang R. Lignans from Isatis indigotica roots and their inhibitory effects on nitric oxide production. Fitoterapia 2019; 137:104189. [DOI: 10.1016/j.fitote.2019.104189] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 11/15/2022]
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3
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Sánchez-Carvajal AL, Alatorre-Santamaría S, Valerio-Alfaro G, Hérnández-Vázquez L, Navarro-Ocaña A. Waste residues from Opuntia ficus indica for peroxidase-mediated preparation of phenolic dimeric compounds. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2018; 20:e00291. [PMID: 30568885 PMCID: PMC6288046 DOI: 10.1016/j.btre.2018.e00291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/18/2018] [Accepted: 11/01/2018] [Indexed: 11/25/2022]
Abstract
A methodology to detect peroxidase activity in Opuntia ficus indica cladodes waste extracts was performed and then used towards phenolic compounds. The extracts were able to dimerize three different molecules. Dimeric compounds were produced with yields ranging from 11% to 55%. The influence of H2O2 concentration was also tested, finding better yields when the peroxide-to-substrate ratio was 1:1. Some water-miscible solvents were used trying to increase overall yields, but no-significant positive results were found. In fact, one of them, THF, seemed to inhibit dimerization reaction. Hence, we have tested an alternative natural peroxidase source obtained from the wastes of a local highly-consumed vegetable and studied their enzymatic activity towards the preparation of biologically active, valuable compounds.
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Affiliation(s)
| | | | - Gerardo Valerio-Alfaro
- UNIDA, Instituto Tecnológico de Veracruz, 2779 Miguel A. de Quevedo Ave., Veracruz, 91897, Mexico
| | | | - Arturo Navarro-Ocaña
- Food and Biotechnology Department,Chemistry Faculty, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, 04510, Mexico
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Palade LM, Croitoru C, Arnous A. Preliminary assessment for the synthesis of lignin-type molecules using crude onion peroxidase. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0651-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lozano-Baena MD, Tasset I, Muñoz-Serrano A, Alonso-Moraga Á, de Haro-Bailón A. Cancer Prevention and Health Benefices of Traditionally Consumed Borago officinalis Plants. Nutrients 2016; 8:E48. [PMID: 26797631 PMCID: PMC4728661 DOI: 10.3390/nu8010048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 12/28/2015] [Accepted: 01/11/2016] [Indexed: 11/17/2022] Open
Abstract
Nowadays, healthy eating is increasing the demand of functional foods by societies as sources of bioactive products with healthy qualities. For this reason, we tested the safety of the consumption of Borago officinalis L. and its main phenolic components as well as the possibility of its use as a nutraceutical plant to help in cancer prevention. The in vivo Drosophila Somatic Mutation and Recombination Test (SMART) and in vitro HL-60 human cell systems were performed, as well-recognized methods for testing genotoxicity/cytotoxicity of bioactive compounds and plant products. B. officinalis and the tested compounds possess antigenotoxic activity. Moreover, B. officinalis wild type cultivar exerts the most antigenotoxic values. Cytotoxic effect was probed for both cultivars with IC50 values of 0.49 and 0.28 mg · mL(-1) for wild type and cultivated plants respectively, as well as their constituent rosmarinic acid and the assayed phenolic mixture (IC50 = 0.07 and 0.04 mM respectively). B. officinalis exerts DNA protection and anticarcinogenic effects as do its component rosmarinic acid and the mixture of the main phenolics presented in the plant. In conclusion, the results showed that B. officinalis may represent a high value plant for pleiotropic uses and support its consumption as a nutraceutical plant.
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Affiliation(s)
- María-Dolores Lozano-Baena
- Department of Plant Breeding, Institute of Sustainable Agriculture, CSIC, Av. Menéndez Pidal s/n, Córdoba E-14004, Spain.
| | - Inmaculada Tasset
- Department of Developmental and Molecular Biology, Institute for Aging Studies, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.
| | - Andrés Muñoz-Serrano
- Department of Genetics, Gregor Mendel Building, Faculty of Science, University of Córdoba, Campus Rabanales, Córdoba 14014, Spain.
| | - Ángeles Alonso-Moraga
- Department of Genetics, Gregor Mendel Building, Faculty of Science, University of Córdoba, Campus Rabanales, Córdoba 14014, Spain.
| | - Antonio de Haro-Bailón
- Department of Plant Breeding, Institute of Sustainable Agriculture, CSIC, Av. Menéndez Pidal s/n, Córdoba E-14004, Spain.
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Grúz J, Pospíšil J, Kozubíková H, Pospíšil T, Doležal K, Bunzel M, Strnad M. Determination of free diferulic, disinapic and dicoumaric acids in plants and foods. Food Chem 2014; 171:280-6. [PMID: 25308670 DOI: 10.1016/j.foodchem.2014.08.131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/25/2014] [Accepted: 08/30/2014] [Indexed: 11/17/2022]
Abstract
Hydroxycinnamates are common phenolic compounds of plants and plant foods, often found in substantial quantities. Due to their high in vitro antioxidant activity they can easily be oxidized under oxidative conditions. In this study, we found that in vitro oxidation of coumaric, ferulic and sinapic acids resulted mainly in dimeric compounds. We hypothesized that these dimers are present in plants and plant foods not only in their bound form but also as free acids that can be extracted from non-hydrolyzed samples. By applying sensitive UHPLC-MS/MS method, we were able to identify and quantify four free hydroxycinnamic acid dimers for the first time, namely 8-8'-disinapic, 8-5'-diferulic, 8-O-4'-diferulic and 8-3'-dicoumaric acids, in wheat sprouts, Chinese cabbage, millet sprouts, light beer and parsley. Concentrations of dicinnamates in plant tissues ranged from 0.05 to 2.8 μg g(-1) DW and the monomer:dimer ratio ranged from 2 to 850.
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Affiliation(s)
- Jiří Grúz
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacky University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic; Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic.
| | - Jiří Pospíšil
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacky University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic; Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic
| | - Hana Kozubíková
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic
| | - Tomáš Pospíšil
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic
| | - Karel Doležal
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacky University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic; Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic
| | - Mirko Bunzel
- Department of Food Chemistry and Phytochemistry, Karlsruhe Institute of Technology (KIT), Adenauerring 20A, 76131 Karlsruhe, Germany
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacky University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic; Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany, Academy of Sciences of Czech Republic, Šlechtitelů 11, 783 71 Olomouc-Holice, Czech Republic
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Ricklefs E, Winkler N, Koschorreck K, Urlacher VB. Expanding the laccase-toolbox: a laccase from Corynebacterium glutamicum with phenol coupling and cuprous oxidase activity. J Biotechnol 2014; 191:46-53. [PMID: 24910971 DOI: 10.1016/j.jbiotec.2014.05.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 05/23/2014] [Accepted: 05/30/2014] [Indexed: 11/18/2022]
Abstract
Laccases are oxidases with potential for application in biotechnology. Up to now only fungal laccases have been applied in technical processes, although bacterial laccases are generally easier to handle and more stable at alkaline pH values and elevated temperatures. To increase the toolbox of bacterial laccases and to broaden our knowledge about them, new enzymes have to be characterized. Within this study, we describe the new bacterial laccase CgL1 from Corynebacterium glutamicum. CgL1 was found to oxidize typical laccase substrates like 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid), syringaldazine and 2,6-dimethoxyphenol. The enzyme also demonstrates cuprous oxidase activity. Furthermore, CgL1 is active for several hours at temperatures up to 60°C and at alkaline pH, as well as stable in different organic solvents. This makes CgL1 a potential candidate for technical applications. In addition, CgL1 was found to catalyze the CC/CO coupling of several phenolic compounds which can serve as precursors for the synthesis of natural products like antibiotics and phytohormones. This activity and product distribution were influenced by pH value and mediators used.
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Affiliation(s)
- Esther Ricklefs
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Nadine Winkler
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Katja Koschorreck
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Vlada B Urlacher
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
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8
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He Y, Wang XB, Fan BY, Kong LY. Honokiol trimers and dimers via biotransformation catalyzed by Momordica charantia peroxidase: Novel and potent α-glucosidase inhibitors. Bioorg Med Chem 2014; 22:762-71. [DOI: 10.1016/j.bmc.2013.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/03/2013] [Accepted: 12/05/2013] [Indexed: 12/21/2022]
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9
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Hu XJ, Wang XB, Kong LY. α-Glucosidase inhibitors via green pathway: biotransformation for bicoumarins catalyzed by Momordica charantia peroxidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:1501-1508. [PMID: 23360233 DOI: 10.1021/jf304384b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Peroxidase extracted from Momordica charantia catalyzed the H(2)O(2)-dependent oxidative coupling of 7-hydroxy-4-methylcoumarin to form four new dimers (1-4) and two known ones (5, 6). The structures, including the absolute configurations of axially chiral compounds, were unambiguously characterized by NMR spectroscopy, online HPLC-CD, and a variety of computational methods. Bioactive experiments demonstrated that compounds 1 and 2 had significant inhibitory effects on yeast α-glucosidase, much better than the controls. Noncompetitive binding mode was found by the graphical analysis of steady-state inhibition data. The mechanism of enzymatic inhibition confirmed in some depth that the inhibitors altered the secondary structure of α-glucosidase by decreasing the α-helix and increasing the β-sheet content. In summary, bicoumarins 1 and 2 might be exploited as the lead compounds for further research of antidiabetic agents, and this research provided a "green" method to synthesize compounds with the chiral biaryl axis generally calling for multistep reactions in organic chemistry.
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Affiliation(s)
- Xiao-Jun Hu
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
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10
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Agha A, Makris D. Biocatalytic characteristics, product formation and putative pathway ofP-coumaric acid oxidation by a crude peroxidase from onion. ACTA ALIMENTARIA 2012. [DOI: 10.1556/aalim.41.2012.3.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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White PJ, Broadley MR. Physiological limits to zinc biofortification of edible crops. FRONTIERS IN PLANT SCIENCE 2011; 2:80. [PMID: 22645552 PMCID: PMC3355814 DOI: 10.3389/fpls.2011.00080] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 10/26/2011] [Indexed: 05/20/2023]
Abstract
It has been estimated that one-third of the world's population lack sufficient Zn for adequate nutrition. This can be alleviated by increasing dietary Zn intakes through Zn biofortification of edible crops. Biofortification strategies include the application of Zn-fertilizers and the development of crop genotypes that acquire more Zn from the soil and accumulate it in edible portions. Zinc concentrations in roots, leaves, and stems can be increased through the application of Zn-fertilizers. Root Zn concentrations of up to 500-5000 mg kg(-1) dry matter (DM), and leaf Zn concentrations of up to 100-700 mg kg(-1) DM, can be achieved without loss of yield when Zn-fertilizers are applied to the soil. It is possible that greater Zn concentrations in non-woody shoot tissues can be achieved using foliar Zn-fertilizers. By contrast, Zn concentrations in fruits, seeds, and tubers are severely limited by low Zn mobility in the phloem and Zn concentrations higher than 30-100 mg kg(-1) DM are rarely observed. However, genetically modified plants with improved abilities to translocate Zn in the phloem might be used to biofortify these phloem-fed tissues. In addition, genetically modified plants with increased tolerance to high tissue Zn concentrations could be used to increase Zn concentrations in all edible produce and, thereby, increase dietary Zn intakes.
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Affiliation(s)
| | - Martin R. Broadley
- Plant and Crop Sciences Division, University of NottinghamLoughborough, UK
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12
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Wan X, Wang XB, Yang MH, Wang JS, Kong LY. Dimerization of piceatannol by Momordica charantia peroxidase and α-glucosidase inhibitory activity of the biotransformation products. Bioorg Med Chem 2011; 19:5085-92. [DOI: 10.1016/j.bmc.2011.07.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Revised: 07/16/2011] [Accepted: 07/19/2011] [Indexed: 12/21/2022]
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Chlorogenic Acid Oxidation by a Crude Peroxidase Preparation: Biocatalytic Characteristics and Oxidation Products. FOOD BIOPROCESS TECH 2009. [DOI: 10.1007/s11947-009-0241-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Xie CF, Yuan HQ, Qu JB, Xing J, Lü BB, Wang XN, Ji M, Lou HX. Biocatalytic Production of Acyclic Bis[bibenzyls] from Dihydroresveratrol by CrudeMomordica charantiaPeroxidase. Chem Biodivers 2009; 6:1193-201. [DOI: 10.1002/cbdv.200800229] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Enzymatic conversion of Baicalin into Baicalein by β-glucuronidase encapsulated in biomimetic core-shell structured hybrid capsules. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.08.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Bunzel M, Heuermann B, Kim H, Ralph J. Peroxidase-catalyzed oligomerization of ferulic acid esters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:10368-10375. [PMID: 18841901 DOI: 10.1021/jf801825z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Valuable information about possible types of linkages, reaction mechanisms, and sequences for oxidative coupling of phenolic compounds in planta is available from in vitro model systems. Ferulate oligomers were generated in a system using ethyl ferulate, peroxidase, and hydrogen peroxide under various conditions. A molar ferulate/H2O2 ratio of 1:1, an ethanol level of 30% in an aqueous sodium phosphate buffer (pH 6.0), and a reaction time of 10 min were considered to be ideal to produce maximal proportions of ferulate trimers and tetramers from ethyl ferulate as starting material. The dominant trimer and tetramer were each isolated from the reaction mixture and identified as 8-O-4/8-5(cyclic)-dehydrotriferulic acid triethyl ester and 8-5(cyclic)/4-O-5/8-5(cyclic)-dehydrotetraferulic acid tetraethyl ester. The structure of the 8-O-4/8-5(cyclic)-dehydrotriferulic acid triethyl ester revealed that a third ferulate unit is bound to a preformed 8-O-4-diferulate dimer, a surprising reaction sequence considering the dominance of 8-5-coupled dimers among dehydrodiferulates in H2O2/peroxidase-based model reactions. As 4-O-5-coupling is not favored in the dimerization process of ferulates, the main tetramer isolated in this study is probably formed by 4-O-5-coupling of two preformed 8-5(cyclic)-diferulates, a logical step in analogy with reactions occurring in lignin biosynthesis.
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Affiliation(s)
- Mirko Bunzel
- Department of Food Science and Nutrition, University of Minnesotas-Twin Cities, St. Paul, Minnesota 55108, USA.
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Camarero S, Cañas AI, Nousiainen P, Record E, Lomascolo A, Martínez MJ, Martínez AT. P-hydroxycinnamic acids as natural mediators for laccase oxidation of recalcitrant compounds. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2008; 42:6703-9. [PMID: 18800552 DOI: 10.1021/es8008979] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The capabilities of p-coumaric acid (PCA), ferulic acid (FA), and sinapic acid (SA) as laccase mediators are compared in oxidation of industrial dyes and polycyclic aromatic hydrocarbons (PAH). SA behaved as highly efficient mediator in decolorization of dyes, including the recalcitrant Reactive Black 5. This mediating capacity was related to the specificity constant of the enzyme oxidizing this p-hydroxycinnamic acid, which was 16 times higher than for the typical substrate 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS). The kinetics of ABTS oxidation by laccase in the presence of p-hydroxycinnamic acids suggested that the stable phenoxyl radical of a SA transformation product acts as laccase mediator. On the other hand, FA and, especially PCA, easily mediated benzo[a]pyrene oxidation, the latter also promoting the oxidation of the more recalcitrant phenanthrene. Phenanthrene transformation by laccase-PCA was enhanced by Tween 80. This fact, together with the detection of TBARS (thiobarbituric acid-reactive-substances) from unsaturated fatty acids, revealed that laccase can also initiate lipid peroxidation reactions in the presence of p-hydroxycinnamic acids enabling oxidation of the most recalcitrant PAH.
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Affiliation(s)
- Susana Camarero
- Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain.
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Agha AE, Makris DP, Kefalas P. Peroxidase-active cell free extract from onion solid wastes: biocatalytic properties and putative pathway of ferulic acid oxidation. J Biosci Bioeng 2008; 106:279-85. [DOI: 10.1263/jbb.106.279] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 06/18/2008] [Indexed: 11/17/2022]
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19
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Biocatalytic properties of a peroxidase-active cell-free extract from onion solid wastes: caffeic acid oxidation. Biodegradation 2008; 20:143-53. [DOI: 10.1007/s10532-008-9208-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Accepted: 07/11/2008] [Indexed: 10/21/2022]
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20
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Wan X, Liu H, Huang X, Luo J, Kong L. Biotransformation of caffeic acid by Momordica charantia peroxidase. CAN J CHEM 2008. [DOI: 10.1139/v08-090] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biotransformation of caffeic acid with H2O2/Momordica charantia peroxidase at pH 5.0, 25 °C in the presence of acetone has resulted in the isolation of three caffeic acid trimers 1–3, five caffeic acid dimers 4–8, and one monomer 9. Among them, seven (1–7) are new compounds, and two (8 and 9) are known compounds, including one compound (9), which was obtained by biotransformation for the first time. The structures were established by 2D NMR techniques, such as HSQC, HMBC, and NOESY measurements. The possible mechanism for the formation of the products is also discussed. This is the first time that caffeic acid trimers have been obtained through the biotransformation of catalyzed by peroxidase in vitro. Compound 5 has shown much stronger anti-oxidative activity than the other caffeic acid polymers obtained.Key words: Momordica charantia peroxidase, caffeic acid, polymers of caffeic acid, biotransformation, antioxidant activity.
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22
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Yu BB, Han XZ, Lou HX. Oligomers of resveratrol and ferulic acid prepared by peroxidase-catalyzed oxidation and their protective effects on cardiac injury. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:7753-7. [PMID: 17696480 DOI: 10.1021/jf0711486] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Peroxidase extracted from Momordica charantia was used for the oligomerization of trans-resveratrol and ferulic acid on a preparative scale. One new heterocoupling oligomer, trans-3 E-3-[(4-hydroxy-3-methoxyphenyl)methylene]-4-(3,5-dihydroxyphenyl)-5-(4-hydroxyphenyl)tetrahydro-2-franone (6), and six resveratrol dimers, leachianol G (1), restrytisol B (2), parthenostilbenins A (3) and B (5), 7- O-acetylated leachianol G (4), and resveratrol trans-dehydrodimer (8), and one known ferulic acid dehydrodimer, (3alpha,3aalpha,6alpha,6aalpha)tetrahydro-3,6-bis(4-hydroxy-3-methoxyphenyl)-1 H,4 H-furo[3,4-c]furan-1,4-dione (7) were obtained. Bioactive experiments showed that compounds 6- 8 have strong free radical scavenging effects and also have protective effects on doxorubicin-induced cardiac cell injury when tested in vitro.
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Affiliation(s)
- Bei-Bei Yu
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
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