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Mastihubová M, Poláková M. A selective and mild glycosylation method of natural phenolic alcohols. Beilstein J Org Chem 2016; 12:524-30. [PMID: 27340444 PMCID: PMC4901888 DOI: 10.3762/bjoc.12.51] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 03/01/2016] [Indexed: 12/21/2022] Open
Abstract
Several bioactive natural p-hydroxyphenylalkyl β-D-glucopyranosides, such as vanillyl β-D-glucopyranoside, salidroside and isoconiferin, and their glycosyl analogues were prepared by a simple reaction sequence. The highly efficient synthetic approach was achieved by utilizing acetylated glycosyl bromides as well as aromatic moieties and mild glycosylation promoters. The aglycones, p-O-acetylated arylalkyl alcohols, were prepared by the reduction of the corresponding acetylated aldehydes or acids. Various stereoselective 1,2-trans-O-glycosylation methods were studied, including the DDQ-iodine or ZnO-ZnCl2 catalyst combination. Among them, ZnO-iodine has been identified as a new glycosylation promoter and successfully applied to the stereoselective glycoside synthesis. The final products were obtained by conventional Zemplén deacetylation.
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Affiliation(s)
- Mária Mastihubová
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38 Bratislava, Slovakia
| | - Monika Poláková
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38 Bratislava, Slovakia
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2
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Kang Y, Wei B, Guo D, Zheng S. Production of Alkyl Polyglucoside Using Pichia pastoris GS115 Displaying Aspergillus aculeatus β-Glucosidase I. LECTURE NOTES IN ELECTRICAL ENGINEERING 2015. [DOI: 10.1007/978-3-662-45657-6_44] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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3
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Montiel C, Bustos-Jaimes I, Bárzana E. Enzyme-catalyzed synthesis of heptyl-β-glycosides: effect of water coalescence at high temperature. BIORESOURCE TECHNOLOGY 2013; 144:135-140. [PMID: 23863873 DOI: 10.1016/j.biortech.2013.06.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 06/18/2013] [Accepted: 06/20/2013] [Indexed: 06/02/2023]
Abstract
Alkyl glycosides can be synthesized by glycosidases in organic media with limited amounts of water. These systems, however, limit the solubility of the sugar substrates and decrease reaction yields. Herein we report the enzymatic synthesis of heptyl-β-glycosides in heptanol catalyzed by a hyperthermophilic β-glycosidase at 90°C. Our results indicate that dispersion of water in heptanol changes with time producing coalescence of water at the bottom of the reactor, playing a key role in the reaction yield. Water-soluble substrate, enzyme and products are concentrated in the aqueous phase, according to their partition coefficients, promoting side reactions that inactivate the enzyme. Reaction yield of heptyl-β-glycosides was 35% relative to lactose, at 7% water. The increase in the water phase to 12% diminished the enzyme inactivation and increased the heptyl-β-glycosides yield to 52%. Surface-active compounds, SDS and octyl glucoside, increased water dispersion but were unable to prevent coalescence.
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Affiliation(s)
- Carmina Montiel
- Department of Food Science and Biotechnology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico.
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Slana M, Zigon D, Makovec T, Lenasi H. The response of filamentous fungus Rhizopus nigricans to flavonoids. J Basic Microbiol 2011; 51:433-41. [PMID: 21656793 DOI: 10.1002/jobm.201000193] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Accepted: 12/08/2010] [Indexed: 11/10/2022]
Abstract
The saprophytic fungus Rhizopus nigricans constitutes a serious problem when thriving on gathered crops. The identification of any compounds, especially natural ones, that inhibit fungal growth, may therefore be important. During its life cycle, Rhizopus nigricans encounters many compounds, among them the flavonoids, plant secondary metabolites that are involved in plant defense against pathogenic microorganisms. Although not being a plant pathogen, Rhizopus nigricans may interact with these compounds in the same way as plant pathogens--in response to the fungitoxic effect of flavonoids the fungi transform them into less toxic metabolites. We have studied the interaction of R. nigricans with some flavonoids. Inhibition of hyphal spreading (from 3% to 100%) was observed by 300 μM flavones, flavanones and isoflavones, irrespective of their basic structure, oxidized or reduced C-ring, and orientation of the B-ring. However, a hydrophobic A-ring was important for the toxicity. R. nigricans transformed some of the flavonoids into glucosylated products. Recognition of substrates for glucosylating enzyme(s) did not correlate with their fungitoxic effect but depended exclusively on the presence of a free -OH group in the flavonoid A-ring and of a hydrophobic B-ring. Although the fungus produced glucosyltransferase constitutively, an additional amount of the enzyme was induced by the substrate flavonoid. Moreover, effective detoxification was shown to require the presence of glucose.
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Affiliation(s)
- Marko Slana
- Institute of Biochemistry of Medical Faculty, University of Ljubljana, Vrazov trg 2, Ljublana, Slovenia
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Trincone A, Improta R, Nucci R, Rossi M, Gambacorta A. Enzymatic Synthesis of Carbohydrate Derivatives Using β-Glycosidase ofSulfolobus Solfataricus. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/10242429409065229] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- A. Trincone
- Istituto per la Chimica di Molecole di Interesse Biologico CNR, Via Toiano, 6 80072 Arco Felice, (Naples), Italy
| | - R. Improta
- Istituto per la Chimica di Molecole di Interesse Biologico CNR, Via Toiano, 6 80072 Arco Felice, (Naples), Italy
| | - R. Nucci
- Istituto di Biochimica delle Proteine ed Enzimologia CNR, Via Marconi 10, 80125, (Naples), Italy
| | - M. Rossi
- Istituto di Biochimica delle Proteine ed Enzimologia CNR, Via Marconi 10, 80125, (Naples), Italy
| | - A. Gambacorta
- Istituto per la Chimica di Molecole di Interesse Biologico CNR, Via Toiano, 6 80072 Arco Felice, (Naples), Italy
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Trincone A, Pagnotta E, Fantin G, Fogagnolo M. Enzymatic Routes for the Synthesis of Rhododendrin and Epi-Rhododendrin. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429609003603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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7
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De Roode BM, Franssen MCR, Van der Padt A, De Groot A. The Influence Of Glucose On The Storage And Operational Stability Of Almond β-Glucosidase During The Glucosylation Of Cyclohexanol. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429909040116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Corma A, Iborra S, Velty A. Chemical Routes for the Transformation of Biomass into Chemicals. Chem Rev 2007; 107:2411-502. [PMID: 17535020 DOI: 10.1021/cr050989d] [Citation(s) in RCA: 3130] [Impact Index Per Article: 184.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Avelino Corma
- Instituto de Tecnología Química, UPV-CSIC, Universidad Politécnica de Valencia, Avenida de los Naranjos, s/n, Valencia, Spain
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Hydrophilization of immobilized model enzymes suggests a widely applicable method for enhancing protein stability in polar organic co-solvents. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcatb.2007.02.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Dudíková J, Mastihubová M, Mastihuba V, Kolarova N. Exploration of transfructosylation activity in cell walls from Cryptococcus laurentii for production of functionalised β-d-fructofuranosides. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcatb.2006.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Akita H, Kawahara E, Kishida M, Kato K. Synthesis of naturally occurring β-d-glucopyranoside based on enzymatic β-glycosidation. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcatb.2006.01.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Hommalai G, Chaiyen P, Svasti J. Studies on the transglucosylation reactions of cassava and Thai rosewood β-glucosidases using 2-deoxy-2-fluoro-glycosyl-enzyme intermediates. Arch Biochem Biophys 2005; 442:11-20. [PMID: 16139237 DOI: 10.1016/j.abb.2005.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2005] [Revised: 07/25/2005] [Accepted: 07/27/2005] [Indexed: 10/25/2022]
Abstract
Beta-glucosidases from cassava and Thai rosewood can synthesize a variety of alkyl glucosides using various alcohols as glucosyl acceptors for transglucosylation. Both enzymes were inactivated by 2-deoxy-2-fluoro-sugar analogues to form the covalent glycosyl-enzyme intermediates, indicating that the reaction mechanism was of the double-replacement type. The trapped enzyme intermediates were used for investigating transglucosylation specificity, by measuring the rate of reactivation by various alcohols. The glucosyl-enzyme intermediate from the cassava enzyme showed a 20- to 120-fold higher rate of glucose transfer to alcohols than the glucosyl-enzyme intermediate from the Thai rosewood enzyme. Kinetic analysis indicated that the aglycone binding site of the cassava enzyme was hydrophobic, since the enzyme bound better to more hydrophobic alcohols and showed poor transfer of glucose to hydrophilic sugars. With butanol, transglucosylation was faster with the primary alcohols than with the secondary or tertiary alcohol. Studies with ethanol and chloro-substituted ethanols indicated that the rate of transglucosylation was significantly faster with alcohols with lower pKa values, where the reactive alkoxide was more readily generated, indicating that the formation of the alkoxide species was a major step governing the formation of the transition state in the cassava enzyme.
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Affiliation(s)
- Greanggrai Hommalai
- Department of Biochemistry, Center for Protein Structure and Function, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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14
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Amyloglucosidase-catalyzed synthesis of n-octyl-d-glucoside?analysis using response surface methodology. Eur Food Res Technol 2004. [DOI: 10.1007/s00217-004-1057-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Kurashima K, Fujii M, Ida Y, Akita H. Simple Synthesis of .BETA.-D-Glycopyranosides Using .BETA.-Glycosidase from Almonds. Chem Pharm Bull (Tokyo) 2004; 52:270-5. [PMID: 14758017 DOI: 10.1248/cpb.52.270] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Enzymatic glycosidation of twenty-one kinds of alcohols (n-hepanol, n-octanol, 2-phenylethanol, 3-phenylpropanol, 4-phenylbutanol, 5-phenylpentanol, 6-phenylhexanol, furfury alcohol, 2-pyridinemethanol, isobutanol, isopentanol, p-methoxycinnamylalcohol) including secondary alcohols (isopropanol, cyclohexanol, 1-phenylethanol) and 1,omega-alkanediols (1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol), salicyl alcohol and 4-nitrophenyl beta-D-glucopyranoside (5) using beta-glucosidase from almonds stereoselectively gave the corresponding beta-D-glucopyranosides in moderate yield.
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Affiliation(s)
- Katsumi Kurashima
- Enzymes and Pharmaceuticals Research Laboratory, Godo Shusei Co, Ltd, Chiba, Japan
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16
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Fujimatu E, Ishikawa T, Kitajima J. Aromatic compound glucosides, alkyl glucoside and glucide from the fruit of anise. PHYTOCHEMISTRY 2003; 63:609-616. [PMID: 12809723 DOI: 10.1016/s0031-9422(03)00179-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
From the polar portion of the methanolic extract of the fruit of anise (Pimpinella anisum L.), which has been used as a spice and medicine since antiquity, four aromatic compound glucosides, an alkyl glucoside and a glucide were isolated together with 24 known compounds. The structures of the new compounds were clarified as (E)-3-hydroxyanethole beta-D-glucopyranoside, (E)-1'-(2-hydroxy-5-methoxyphenyl)propane beta-D-glucopyranoside, 3-hydroxyestragole beta-D-glucopyranoside, methyl syringate 4-O-beta-D-glucopyranoside, hexane-1,5-diol 1-O-beta-D-glucopyranoside and 1-deoxy-L-erythritol 3-O-beta-D-glucopyranoside by spectral investigation.
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Affiliation(s)
- Eiko Fujimatu
- Showa Pharmaceutical University, Higashi-Tamagawagakuen 3, Machida, Tokyo 194-8543, Japan
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17
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Yasutake N, Totani K, Harada Y, Haraguchi S, Murata T, Usui T. Efficient synthesis of glyceroyl beta-lactoside and its derivatives through a condensation reaction by cellulase. BIOCHIMICA ET BIOPHYSICA ACTA 2003; 1620:252-8. [PMID: 12595096 DOI: 10.1016/s0304-4165(03)00004-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Condensation reaction between lactose and glycerol was effectively catalyzed by utilizing a commercially available cellulase preparation from Trichoderma reesei. The enzyme induced the formation of 1-O-beta-lactosyl-(R,S)-glycerol (1) and 2-O-beta-lactosyl glycerol (2) in a molar ratio of 7:3 and in a 20% yield based on lactose added. The enzyme also induced the condensation of lactose with 1,3-propanediol to produce O-beta-lactosyl propanediol (3) in a yield of 15%. When various alkanols (N: 2-8) and allyl alcohol were used in the condensation reaction, the corresponding alkyl and allyl beta-lactoside were obtained in the yields of 0.9-3.8% of the desired compounds.
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Affiliation(s)
- Nozomu Yasutake
- Science of Biological Resource, The United Graduate School of Agricultural Science, Gifu University, Yanagido 1-1, Japan
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18
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Giacomini C, Irazoqui G, Gonzalez P, Batista-Viera F, Brena BM. Enzymatic synthesis of galactosyl–xylose by Aspergillus oryzae β-galactosidase. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1177(02)00163-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Rémond C, Ferchichi M, Aubry N, Plantier-Royon R, Portella C, O'Donohue MJ. Enzymatic synthesis of alkyl arabinofuranosides using a thermostable α-l-arabinofuranosidase. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)02381-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Cloning, characterization ofPichia etchellsii β-glucosidase II and effect of media composition and feeding strategy on its production in a bioreactor. BIOTECHNOL BIOPROC E 2002. [DOI: 10.1007/bf02935879] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Koeller KM, Wong CH. Synthesis of complex carbohydrates and glycoconjugates: enzyme-based and programmable one-pot strategies. Chem Rev 2000; 100:4465-94. [PMID: 11749355 DOI: 10.1021/cr990297n] [Citation(s) in RCA: 347] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K M Koeller
- Department of Chemistry, The Scripps Research Institute and Skaggs Institute for Chemical Biology, 10550 North Torrey Pines Road, La Jolla, California 92037
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22
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Spagna G, Barbagallo RN, Pifferi PG, Blanco RM, Guisan JM. Stabilization of a β-glucosidase from Aspergillus niger by binding to an amine agarose gel. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1177(00)00188-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Assembly of β-glucosidase multilayers on spherical colloidal particles and their use as active catalysts. Colloids Surf A Physicochem Eng Asp 2000. [DOI: 10.1016/s0927-7757(00)00443-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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van Rantwijk F, Woudenberg-van Oosterom M, Sheldon R. Glycosidase-catalysed synthesis of alkyl glycosides. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1177(99)00042-9] [Citation(s) in RCA: 241] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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α-Chymotrypsin stability in aqueous-acetonitrile mixtures: is the native enzyme thermodynamically or kinetically stable under low water conditions? ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1177(98)00105-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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28
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Transglycosylation catalyzed by a lipid-coated β-d-galactosidase in a two-phase aqueous–organic system. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1381-1177(98)00088-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Bousquet MP, Willemot RM, Monsan P, Boures E. Production, purification, and characterization of thermostable α-transglucosidase from Talaromyces duponti–application to α–alkylglucoside synthesis. Enzyme Microb Technol 1998. [DOI: 10.1016/s0141-0229(98)00020-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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A simple Method for Purifying Glycosidases: α-l-arabinofuranosidase and β-d-glucopyranosidase from Aspergillus niger to Increase the Aroma of Wine. Part I. Enzyme Microb Technol 1998. [DOI: 10.1016/s0141-0229(97)00141-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Crout DH, Vic G. Glycosidases and glycosyl transferases in glycoside and oligosaccharide synthesis. Curr Opin Chem Biol 1998; 2:98-111. [PMID: 9667913 DOI: 10.1016/s1367-5931(98)80041-0] [Citation(s) in RCA: 201] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Remarakable advances in glycobiology in recent years have stimulated a resurgence of interest in carbohydrate chemistry. The challenge of producing the complex glycosides and oligosaccharides needed for research in glycobiology has led to the development of enzymatic methods that are now firmly established as part of the synthetic repertoire of the carbohydrate chemist.
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Affiliation(s)
- D H Crout
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.
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33
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Gelo-Pujic M, Guibé-Jampel E, Loupy A. Enzymatic glycosidations in dry media on mineral supports. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)10177-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Solvent effect on enzyme-catalyzed synthesis of β-d-glucosides using the reverse hydrolysis method: Application to the preparative-scale synthesis of 2-hydroxybenzyl and octyl β-d-glucopyranosides. Enzyme Microb Technol 1997. [DOI: 10.1016/s0141-0229(96)00201-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Mori T, Okahata Y. A variety of lipid-coated glycoside hydrolases as effective glycosyl transfer catalysts in homogeneous organic solvents. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)00251-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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MONSAN PIERREF, PAUL FRANÇOIS, PELENC VINCENT, BOURES EMMANUEL. Enzymatic Production of ?-Butylglucoside and Its Fatty Acid Esters. Ann N Y Acad Sci 1996. [DOI: 10.1111/j.1749-6632.1996.tb33268.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Vic G, Hastings JJ, Crout DH. Glycosidase-catalysed synthesis of glycosides by an improved procedure for reverse hydrolysis: application to the chemoenzymatic synthesis of galactopyranosyl-(1→4)-O-α-galactopyranoside derivatives. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(96)00238-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Okahata Y, Mori T. Effective transgalactosylation catalysed by a lipid-coated β-D-galactosidase in organic solvents. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/p19960002861] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Synthesis of allyl and benzyl β-d-glucopyranosides, and allyl β-d-galactopyranoside from d-glucose or d-galactose and the corresponding alcohol using almond β-d-glucosidase. Carbohydr Res 1995. [DOI: 10.1016/0008-6215(95)00301-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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40
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Fischer L, Bromann R, Wagner F. Enantioselective synthesis of several 1-O-?-D-glucoconjugates using almond ?-glucosidase (E.C. 3.2.1.21). Biotechnol Lett 1995. [DOI: 10.1007/bf00128380] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Vic G, Biton J, Le Beller D, Michel JM, Thomas D. Enzymatic glucosylation of hydrophobic alcohols in organic medium by the reverse hydrolysis reaction using almond-?-D-glucosidase. Biotechnol Bioeng 1995; 46:109-16. [DOI: 10.1002/bit.260460204] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Ferrières V, Bertho JN, Plusquellec D. A new synthesis of O-glycosides from totally O-unprotected glycosyl donors. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00356-h] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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DROUET PHILIPPE, ZHANG MU, LEGOY MARIEDOMINIQUE. Production of Alkyl ?-d-Xylosides with the Trichoderma reesei ?-Xylosidase. Ann N Y Acad Sci 1995. [DOI: 10.1111/j.1749-6632.1995.tb19970.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Trincone A, Pagnotta E. Efficient chemoselective synthesis of 3,4?-dihydroxypropiophenone 3-O-?-D-glucoside by thermophilic ?-glycosidase from Sulfolobus solfataricus. Biotechnol Lett 1995. [DOI: 10.1007/bf00134194] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Synthesis of glucosidic derivatives with a spacer arm by reverse hydrolysis using almond β-D-glucosidase. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0957-4166(00)80397-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ljunger G, Adlercreutz P, Mattiasson B. Enzymatic synthesis of octyl-β-glucoside in octanol at controlled water activity. Enzyme Microb Technol 1994. [DOI: 10.1016/0141-0229(94)90031-0] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Synthesis of β-mercaptoethyl-glycosides by enzymatic reverse hydrolysis and transglycosylation. Biotechnol Lett 1994. [DOI: 10.1007/bf00136472] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Enzymatic synthesis of alkyl ?-D-xylosides by transxylosylation and reverse hydrolysis. Biotechnol Bioeng 1994; 43:1075-80. [DOI: 10.1002/bit.260431110] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Halling PJ. Thermodynamic predictions for biocatalysis in nonconventional media: theory, tests, and recommendations for experimental design and analysis. Enzyme Microb Technol 1994; 16:178-206. [PMID: 7764598 DOI: 10.1016/0141-0229(94)90043-4] [Citation(s) in RCA: 511] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This article discusses the application of thermodynamic and related analysis to reaction systems for enzymic or whole cell catalysis, in which there are high proportions of organic liquid, gas, or supercritical fluid. A variety of predictions may be made, especially based on the partitioning of components between the different phases normally present. In many cases, observed behavior can be explained without invoking any direct molecular effects on the biocatalyst. The predictable changes should always be allowed for before seeking explanations for the residual effects, which are often very different from the crude observations. A summary of the general thermodynamics of multiphase systems is presented, and then the main classes of component that distribute between the phases are discussed in turn. Thermodynamic water activity (aw) determines the mass action effects of water on hydrolytic equilibria. It also describes the distribution of water between the various phases that can compete in binding water. Because catalytic activity is very sensitive to the hydration of the enzyme molecules, aw often predicts an unchanging optimum as other aspects of the system are changed. Hence the aw should be measured and/or controlled in these systems, whether the primary aim is to study the effects of water or of other changes. The methods available for measurement and control of aw are discussed. Adverse effects of organic solvents or similar nonpolar species partly reflect their tendency to partition into the relatively polar phase around the biocatalyst, especially when this is dilute aqueous. The well-established log P parameter is a measure of this. But other mechanisms of inactivation can occur: directly through contact of the biocatalyst with the phase interface, or indirectly via hydration changes. In these cases the molecular property log P is probably not the best solvent parameter. In low-water systems the biocatalyst remains in a separate phase even when water-miscible solvents are used. Hence, the categorization of solvents in terms of miscibility becomes less relevant. This accounts for the "two peak" dependence of catalytic activity on water content in some miscible systems. Differential solvation of reactants and products, as the bulk phase is altered, causes changes in concentration-based equilibrium constants and yields. These changes in solvation may be monitored through partition coefficient or solubility measurements. Reactant solvation can also account for differences in biocatalyst kinetics, whether or not partitioning into a dilute aqueous phase is involved. These predictable effects should be allowed for when studying effects of solvent or similar changes on activity or specificity.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- P J Halling
- Department of Bioscience and Biotechnology, University of Strathclyde, Glasgow, UK
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Bay S, Namane A, Cantacuzene D. Enzymatic synthesis of disaccharide-serine and peptide conjugates. Bioorg Med Chem Lett 1993. [DOI: 10.1016/s0960-894x(01)80708-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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