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Relevant bibliographies by topics / Lactones; Catalysis; Biocatalysis

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Journal articles
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Academic literature on the topic 'Lactones; Catalysis; Biocatalysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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Journal articles on the topic "Lactones; Catalysis; Biocatalysis"

1

Kwon, Seok Joon, Heung-Chae Jung та Jae-Gu Pan. "Transgalactosylation in a Water-Solvent Biphasic Reaction System with β-Galactosidase Displayed on the Surfaces of Bacillus subtilis Spores". Applied and Environmental Microbiology 73, № 7 (2006): 2251–56. http://dx.doi.org/10.1128/aem.01489-06.

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ABSTRACT The ever-increasing industrial demand for biocatalysis necessitates innovations in the preparation and stabilization of biocatalysts. In this study, we demonstrated that β-galactosidase (β-Gal) displayed on Bacillus spores by fusion to the spore coat proteins (CotG) may be used as a whole-cell immobilized biocatalyst for transgalactosylation in water-solvent biphasic reaction systems. The resulting spores had a specific hydrolytic activity of 5 × 103 U/g (dry weight) of spores. The β-Gal was tightly attached to the spore surface and was more stable in the presence of various organic s

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Szelwicka, Anna, Anna Kolanowska, Piotr Latos, Sebastian Jurczyk, Slawomir Boncel та Anna Chrobok. "Carbon nanotube/PTFE as a hybrid platform for lipase B from Candida antarctica in transformation of α-angelica lactone into alkyl levulinates". Catalysis Science & Technology 10, № 10 (2020): 3255–64. http://dx.doi.org/10.1039/d0cy00545b.

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Martin, Collin H., Danyi Wu, and Kristala L. Jones Prather. "Integrated Bioprocessing for the pH-Dependent Production of 4-Valerolactone from Levulinate in Pseudomonas putida KT2440." Applied and Environmental Microbiology 76, no. 2 (2009): 417–24. http://dx.doi.org/10.1128/aem.01769-09.

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ABSTRACT Enzymes are powerful biocatalysts capable of performing specific chemical transformations under mild conditions, yet as catalysts they remain subject to the laws of thermodynamics, namely, that they cannot catalyze chemical reactions beyond equilibrium. Here we report the phenomenon and application of using extracytosolic enzymes and medium conditions, such as pH, to catalyze metabolic pathways beyond their intracellular catalytic limitations. This methodology, termed “integrated bioprocessing” because it integrates intracellular and extracytosolic catalysis, was applied to a lactoniz

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Moreno-Horn, Marcus, Enriqueta Martinez-Rojas, Helmut Görisch, Roland Tressl та Leif Alexander Garbe. "Oxidation of 1,4-alkanediols into γ-lactones via γ-lactols using Rhodococcus erythropolis as biocatalyst". Journal of Molecular Catalysis B: Enzymatic 49, № 1-4 (2007): 24–27. http://dx.doi.org/10.1016/j.molcatb.2007.07.004.

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Zhang, Qiu-Hua, Liu Yang, Yi-Bin Tang, Liu-Nv Huang, and Wen-Fang Luo. "Industrial kinetic resolution of d,l-pantolactone by an immobilized whole-cell biocatalyst." RSC Advances 11, no. 48 (2021): 30373–76. http://dx.doi.org/10.1039/d1ra05708a.

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Immobilized whole-cells of Pichia pastoris harboring recombinant d-lactonase were entrapped in calcium alginate gels and used as an efficient biocatalyst for catalytic kinetic resolution of d,l-pantolactone.

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Grabarczyk, Małgorzata, Wanda Mączka, Katarzyna Wińska, et al. "Pleurotus ostreatus as a Biocatalyst to Obtain Bicyclic Hydroxylactones with Three or Four Methyl Groups." Catalysts 9, no. 8 (2019): 643. http://dx.doi.org/10.3390/catal9080643.

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The purpose of the study was to explore microbial transformations in cultures of basidiomycetes Pleurotus ostreatus, two bicyclic unsaturated lactones occurring in the form of two diastereoisomers. Some of these strains were able to transform unsaturated lactones into four known and three new derivatives. The structures of all lactones were established on the basis of spectroscopic data. Both substrates and products caused a complete inhibition of growth of A. alternata and F. linii strains.

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Mazur, Marcelina, Anna Kudrynska, Aleksandra Pawlak, Beatriz Hernandez-Suarez, Bożena Obmińska-Mrukowicz, and Witold Gładkowski. "Biotechnological Approach for the Production of Enantiomeric Hydroxylactones Derived from Benzaldehyde and Evaluation of Their Cytotoxic Activity." Catalysts 10, no. 11 (2020): 1313. http://dx.doi.org/10.3390/catal10111313.

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The β-aryl-δ-halo-γ-lactones are known for their antiproliferative activity towards numerous cancer cell lines. The aim of this study was to obtain in the biotransformation process new β-aryl-δ-hydroxy-γ-lactones and compare their activity with the antiproliferative activity of parent compounds. The racemic cis-5-(1-iodoethyl)-4-phenyldihydrofuran-2-one as well as separate enantiomers were transformed in fungal cultures. Among ten tested biocatalysts, three (Absidia cylindrospora AM336, Absidia glauca AM254, and Fusarium culmorum AM10) were able to catalyze the hydrolytic dehalogenation proces

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Castejón-Vilatersana, Mireia, Magda Faijes, and Antoni Planas. "Transglycosylation Activity of Engineered Bifidobacterium Lacto-N-Biosidase Mutants at Donor Subsites for Lacto-N-Tetraose Synthesis." International Journal of Molecular Sciences 22, no. 6 (2021): 3230. http://dx.doi.org/10.3390/ijms22063230.

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The health benefits of human milk oligosaccharides (HMOs) make them attractive targets as supplements for infant formula milks. However, HMO synthesis is still challenging and only two HMOs have been marketed. Engineering glycoside hydrolases into transglycosylases may provide biocatalytic routes to the synthesis of complex oligosaccharides. Lacto-N-biosidase from Bifidobacterium bifidum (LnbB) is a GH20 enzyme present in the gut microbiota of breast-fed infants that hydrolyzes lacto-N-tetraose (LNT), the core structure of the most abundant type I HMOs. Here we report a mutational study in the

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Misson, Mailin, Bo Jin, Sheng Dai та Hu Zhang. "Interfacial Biocatalytic Performance of Nanofiber-Supported β-Galactosidase for Production of Galacto-Oligosaccharides". Catalysts 10, № 1 (2020): 81. http://dx.doi.org/10.3390/catal10010081.

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Molecular distribution, structural conformation and catalytic activity at the interface between enzyme and its immobilising support are vital in the enzymatic reactions for producing bioproducts. In this study, a nanobiocatalyst assembly, β-galactosidase immobilized on chemically modified electrospun polystyrene nanofibers (PSNF), was synthesized for converting lactose into galacto-oligosaccharides (GOS). Characterization results using scanning electron microscopy (SEM) and fluorescence analysis of fluorescein isothiocyanat (FITC) labelled β-galactosidase revealed homogenous enzyme immobilizat

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Feske, Brent, Sarah Franz, Richard Watkins та ін. "Synthetic Strategy toward γ-Keto Nitriles and Their Biocatalytic Conversion to Asymmetric γ-Lactones". Synthesis 45, № 15 (2013): 2171–78. http://dx.doi.org/10.1055/s-0033-1339282.

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Dissertations / Theses on the topic "Lactones; Catalysis; Biocatalysis"

1

Grogan, Gideon James. "Microbial biotransformations : oxygenation of cyclic ketones by Baeyer-Villiger monooxygenases from camphor-grown Pseudomonas putida NCIMB 10007." Thesis, University of Exeter, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261493.

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Hogan, Matthew Charles. "Process issues in redox biocatalysis : cyclohexanone monooxygenase catalysed chiral lactone syntheses." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325655.

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