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Journal articles on the topic 'Enzymatic immobilisation'

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1

Schartner, Jonas, Jörn Güldenhaupt, Sarah Katharina Gaßmeyer, et al. "Highly stable protein immobilizationviamaleimido-thiol chemistry to monitor enzymatic activity." Analyst 143, no. 10 (2018): 2276–84. http://dx.doi.org/10.1039/c8an00301g.

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2

Küchler, Andreas, Jozef Adamcik, Raffaele Mezzenga, A. Dieter Schlüter, and Peter Walde. "Enzyme immobilization on silicate glass through simple adsorption of dendronized polymer–enzyme conjugates for localized enzymatic cascade reactions." RSC Advances 5, no. 55 (2015): 44530–44. http://dx.doi.org/10.1039/c5ra06268c.

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3

Agustian, Joni, and Lilis Hermida. "The Optimised Statistical Model for Enzymatic Hydrolysis of Tapioca by Glucoamylase Immobilised on Mesostructured Cellular Foam Silica." Bulletin of Chemical Reaction Engineering & Catalysis 14, no. 2 (2019): 380. http://dx.doi.org/10.9767/bcrec.14.2.3078.380-390.

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Enzymatic hydrolysis of starches using free glucoamylase to reducing sugars have difficulties in recovering and recycling of the enzyme, hence immobilisation on inert supports were widely studied. However, effectiveness of the immobilised glucoamylase were merely observed only on soluble starches. It was considered a valuable thing to know performance of glucoamylase on Mesostructured Cellular Foam (MCF) silica in hydrolysing of tapioca. An optimised study on enzymatic hydrolysis of tapioca using glucoamylase on MCF silica (9.2T-3D) and its kinetics were described including justification of th
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4

Wang, Yichao, Shuang Zhang, Enamul Haque, et al. "Immobilisation of microperoxidase-11 into layered MoO3 for applications of enzymatic conversion." Applied Materials Today 16 (September 2019): 185–92. http://dx.doi.org/10.1016/j.apmt.2019.05.008.

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5

Avci Duman, Yonca, Gamze Tufan, and A. Uğur Kaya. "Immobilisation of cellulase on vermiculite and the effects on enzymatic kinetics and thermodynamics." Applied Clay Science 197 (November 2020): 105792. http://dx.doi.org/10.1016/j.clay.2020.105792.

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6

Campanella, L., G. Favero, M. P. Sammartino, and M. Tomassetti. "Enzymatic immobilisation in kappa-carrageenan gel suitable for organic phase enzyme electrode (OPEE) assembly." Journal of Molecular Catalysis B: Enzymatic 7, no. 1-4 (1999): 101–13. http://dx.doi.org/10.1016/s1381-1177(99)00035-1.

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7

Pramparo, L., F. Stüber, J. Font, A. Fortuny, A. Fabregat, and C. Bengoa. "Immobilisation of horseradish peroxidase on Eupergit®C for the enzymatic elimination of phenol." Journal of Hazardous Materials 177, no. 1-3 (2010): 990–1000. http://dx.doi.org/10.1016/j.jhazmat.2010.01.017.

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8

Hannig, C., B. Spitzmüller, H. C. Lux, M. Altenburger, A. Al-Ahmad, and M. Hannig. "Efficacy of enzymatic toothpastes for immobilisation of protective enzymes in the in situ pellicle." Archives of Oral Biology 55, no. 7 (2010): 463–69. http://dx.doi.org/10.1016/j.archoralbio.2010.03.020.

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9

Grosová, Z., M. Rosenberg, and M. Rebroš. "Perspectives and applications of immobilised β-galactosidase in food industry – a review." Czech Journal of Food Sciences 26, No. 1 (2008): 1–14. http://dx.doi.org/10.17221/1134-cjfs.

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β-Galactosidase is an important industrial enzyme in the hydrolysis of milk and whey lactose. The enzymatic hydrolysis of lactose allows to avoid health and environmental problems posed by this disaccharide. In addition, this enzyme catalyses the formation of galacto-oligosaccharides, which are prebiotic additives for the so-called “healthy foods”. β-Galactosidase is one of the relatively few enzymes that have been used in large-scale processes in both free and immobilised forms. This article presents a review of recent trends in immobilisation of β-galactosidase and
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10

Hannig, C., B. Spies, B. Spitzmüller, and M. Hannig. "Efficacy of enzymatic mouth rinses for immobilisation of protective enzymes in the in situ pellicle." Archives of Oral Biology 55, no. 1 (2010): 1–6. http://dx.doi.org/10.1016/j.archoralbio.2009.10.004.

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11

Czyzewska, Katarzyna, and Anna Trusek. "Critical Parameters in an Enzymatic Way to Obtain the Unsweet Lactose-Free Milk Using Catalase and Glucose Oxidase Co-Encapsulated into Hydrogel with Chemical Cross-Linking." Foods 12, no. 1 (2022): 113. http://dx.doi.org/10.3390/foods12010113.

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The presented work involves obtaining and characterising a two-enzymatic one-pot bioreactor, including encapsulated (co-immobilised) glucose oxidase and catalase. The enzymatic capsules were applied to produce unsweet, lactose-free milk during low-temperature catalysis. Furthermore, operational conditions, like pH and aeration, were selected in the paper, which sorts out discrepancies in literature reports. All experiments were carried out at 12 °C, corresponding to milk storage and transportation temperature. Preliminary studies (for reasons of analytical accuracy) were carried out in a buffe
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12

Ikechukwu Iloh Udema. "Association-dissociation equations, distinct from Michaelis-Menten equation for the quantification of the net flux of reactants with or without immobiliser." GSC Biological and Pharmaceutical Sciences 13, no. 1 (2020): 231–43. http://dx.doi.org/10.30574/gscbps.2020.13.1.0335.

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The formation of enzyme-substrate complex, often in connection with the adsorption of the enzyme leading to either partial immobilisation in which the enzymes are adsorbed on a colloid or total immobilisation in which the enzyme is adsorbed on a rigid immobile phase is the concern of some researchers. The interest in immobilised substrate common in biological system is not very common. The objectives of this theoretical research are the rederivation of the equations of association and dissociation of reactants in the presence of adsorbents, insoluble larger macro-or supra-molecule and elucidat
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13

Boland, Susan, and Dónal Leech. "A glucose/oxygen enzymatic fuel cell based on redox polymer and enzyme immobilisation at highly-ordered macroporous gold electrodes." Analyst 137, no. 1 (2012): 113–17. http://dx.doi.org/10.1039/c1an15537g.

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14

Hou, Juan, Xingkang Li, Michal Kaczmarek, et al. "Accelerated CO2 Hydration with Thermostable Sulfurihydrogenibium azorense Carbonic Anhydrase-Chitin Binding Domain Fusion Protein Immobilised on Chitin Support." International Journal of Molecular Sciences 20, no. 6 (2019): 1494. http://dx.doi.org/10.3390/ijms20061494.

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Carbonic anhydrases (CAs) represent a group of enzymes that catalyse important reactions of carbon dioxide hydration and dehydration, a reaction crucial to many biological processes and environmental biotechnology. In this study we successfully constructed a thermostable fusion enzyme composed of the Sulfurihydrogenibium azorense carbonic anhydrase (Saz_CA), the fastest CA discovered to date, and the chitin binding domain (ChBD) of chitinase from Bacillus circulans. Introduction of ChBD to the Saz_CA had no major impact on the effect of ions or inhibitors on the enzymatic activity. The fusion
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15

Karunakaran, Chandran, Murugesan Karthikeyan, Marimuthu Dhinesh Kumar, Ganesan Kaniraja, and Kalpana Bhargava. "Electrochemical Biosensors for Point of care Applications." Defence Science Journal 70, no. 5 (2020): 549–56. http://dx.doi.org/10.14429/dsj.70.16359.

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Biosensor refers to powerful and innovative analytical tool involving biological sensing element and transducer with broad range of applications, such as diagnosis, drug discovery, biomedicine, food safety and processing, environmental monitoring, security and defense. Recent advances in the field of biotechnology, microelectronics, and nanotechnology have improved the development of biosensors. Glucometers utilizing the electrochemical determination of oxygen or hydrogen peroxide employing immobilised glucose oxidase electrode seeded the discovery and development of biosensors. Molecular reco
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16

McCormick, Wesley, Pádraig McDonagh, John Doran, and Denis McCrudden. "Covalent Immobilisation of a Nanoporous Platinum Film onto a Gold Screen-Printed Electrode for Highly Stable and Selective Non-Enzymatic Glucose Sensing." Catalysts 11, no. 10 (2021): 1161. http://dx.doi.org/10.3390/catal11101161.

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Progress in the development of commercially available non-enzymatic glucose sensors continues to be problematic due to issues regarding selectivity, reproducibility and stability. Overcoming these issues is a research challenge of significant importance. This study reports a novel fabrication process using a double-layer self-assembly of (3 mercaptopropyl)trimethoxysilane (MPTS) on a gold substrate and co-deposition of a platinum–copper alloy. The subsequent electrochemical dealloying of the less noble copper resulted in a nanoporous platinum structure on the uppermost exposed thiol groups. Am
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17

Fapyane, Deby, Yooseok Lee, Chyi Yan Lim, Jou-Hyeon Ahn, Seon-Won Kim та In Seop Chang. "Immobilisation of Flavin-Adenine-Dinucleotide-Dependent Glucose Dehydrogenase α Subunit in Free-Standing Graphitised Carbon Nanofiber Paper Using a Bifunctional Cross-Linker for an Enzymatic Biofuel Cell". ChemElectroChem 1, № 11 (2014): 1844–48. http://dx.doi.org/10.1002/celc.201402035.

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18

Hoyle, F. C., and D. V. Murphy. "Seasonal changes in microbial function and diversity associated with stubble retention versus burning." Soil Research 44, no. 4 (2006): 407. http://dx.doi.org/10.1071/sr05183.

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The long-term (16-year) effect of stubble management (i.e. retained or burnt) on the size of the microbial community (microbial biomass-C and -N), microbial community structure (PLFA), and function (CO2-C evolution, gross N transformation rates, enzymatic activity, and community level physiological profiles) was investigated on 4 occasions during a single wheat-growing season using soil collected from the low-rainfall (<250 mm) region of Western Australia. Significant differences (P < 0.001) in microbial community structure and function were determined for different sampling times by pho
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19

Dimcheva, Nina D., and Elena G. Horozova. "Electrochemical enzymatic biosensors based on metal micro-/nanoparticles-modified electrodes: a review." Chemical Papers 69, no. 1 (2015). http://dx.doi.org/10.1515/chempap-2015-0011.

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AbstractThe functions of metal structures of micro- or nano-dimensions in the sensing mechanisms of amperometric enzyme-based biosensors are considered in the light of the principles of detection of the latter. The applications of metal mono- or bimetallic nanoparticles-modified materials as catalytic electrodes in the fabrication of first-generation and the role which metal nanoparticles play in promoting or enhancing the electron transfer rates in third-generation electrochemical biosensors are reviewed. Some examples of gold NPs functionalised with enzymes via gold-thiol chemistry as a stra
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20

Labus, Karolina, Aleksandra Drozd, and Anna Trusek-Holownia. "Preparation and characterisation of gelatine hydrogels predisposed to use as matrices for effective immobilisation of biocatalysts." Chemical Papers, January 5, 2015. http://dx.doi.org/10.1515/chempap-2015-0235.

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AbstractPhysical, enzymatic and chemical methods were used to develop an efficient procedure for preparing gelatine hydrogels of appropriate strength and elastic properties for applications as enzyme carriers. The concentrations of the crosslinking enzyme (transglutaminase), the initial amount of gelatine, the production time and the effect of additional crosslinking with glutaraldehyde were examined. As a result, the following conditions were selected: 0.1 g cm
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21

Gutierrez-Nunez, Deborah Valeria, and Paul Kilmartin. "Immobilisation of an Enzymatic System on a Pedot-Modified Electrode to Quantify L-Malic Acid." SSRN Electronic Journal, 2022. http://dx.doi.org/10.2139/ssrn.4187464.

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22

Esteves, C., P. Fareleira, M. A. Castelo-Branco, et al. "Black soldier fly larvae frass increases the soil’s residual nutrient content and enzymatic activity – a lettuce production trial." Journal of Insects as Food and Feed, May 31, 2022, 1–10. http://dx.doi.org/10.3920/jiff2022.0005.

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The aim of this study was to evaluate the potential agronomic value of black soldier fly larvae frass (BSFF) as an organic fertiliser in short-cycle crops, using lettuce as the test plant. Treatments consisted in applying different fertilisers (BSFF and mineral) at different doses and combinations. The experiment was carried out for 42 days and plants were analysed in terms of biomass production, while the soil was chemically characterised before and after fertilisation, in order to assess the residual nutrient concentrations. In addition, soil microbial activity was assessed through the activ
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23

Chandola, Jyoti, Vandana Semwal, Narotam Sharma та Pooja Singh. "Isolation, Biochemical Characterization and Production of Immobilised β-Amylase Chitosan Beads Using Bacteria from Waste Water Effluents for its Industrial Production Aspect". Microbiology Research Journal International, 31 грудня 2020, 111–16. http://dx.doi.org/10.9734/mrji/2020/v30i930270.

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Aims: An amylase, the enzyme that catalyses the hydrolysis of starch into sugars are produced in both animals and plants and as well as in some bacteria also. Nowadays, the use of amylase enzyme in different industrial sectors and particularly in controlling the industrial water pollution has been increased as this enzyme is effective against different types of industrial effluents such as wastes from dairies, confectionaries, municipal wastes, bakery and so on which are expelled out in water without giving any proper treatment. As, the production of synthetic amylase enzyme for this purpose i
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24

Chandola, Jyoti, Vandana Semwal, Narotam Sharma та Pooja Singh. "Isolation, Biochemical Characterization and Production of Immobilised β-Amylase Chitosan Beads Using Bacteria from Waste Water Effluents for its Industrial Production Aspect". Microbiology Research Journal International, 31 грудня 2020, 111–16. http://dx.doi.org/10.9734/mrji/2020/v30i930270.

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Aims: An amylase, the enzyme that catalyses the hydrolysis of starch into sugars are produced in both animals and plants and as well as in some bacteria also. Nowadays, the use of amylase enzyme in different industrial sectors and particularly in controlling the industrial water pollution has been increased as this enzyme is effective against different types of industrial effluents such as wastes from dairies, confectionaries, municipal wastes, bakery and so on which are expelled out in water without giving any proper treatment. As, the production of synthetic amylase enzyme for this purpose i
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25

Xu, Lili, Yimin Qin, Yufeng Song, Aixing Tang, and Youyan Liu. "Glutaraldehyde-crosslinked Rhizopus oryzae whole cells show improved catalytic performance in alkene epoxidation." Microbial Cell Factories 22, no. 1 (2023). http://dx.doi.org/10.1186/s12934-023-02026-0.

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Abstract Background Existing methods for alkene epoxidation are based on lipase-catalysed perhydrolysis. However, the inactivation of the expensive lipase enzyme is problematic for enzymatic epoxidation at large scales due to the use of hydrogen peroxide and peracids at high concentrations in the reaction. The immobilisation of whole cells appears to be a promising approach to alleviate this problem. Results A green oxidation system containing hydrogen peroxide, Na3C6H5O7, an acyl donor, and glutaraldehyde (GA)-crosslinked cells of Rhizopus oryzae was developed for the epoxidation of alkenes.
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