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MICROBIAL ENZYME [19 records]
Record 1 - internal organization data 2017-12-28
Record 1, English
Record 1, Subject field(s)
- Biotechnology
Record 1, Main entry term, English
- biomelocule
1, record 1, English, biomelocule
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Biomolecule Research Division is to screen and identify biologically active lead substances to be eveloped for health care products and agrochemicals. Efforts are being directed to the screening of antitumor, anti-inflammatory, antimicrobial substances and enzyme inhibitors from microbial culture broth and plant extracts as well as to the studying on the mode of action of the newly isolated compounds. Studies on the biosynthesis and biotransformation of biologically active substances are also being conducted. 1, record 1, English, - biomelocule
Record 1, French
Record 1, Domaine(s)
- Biotechnologie
Record 1, Main entry term, French
- biomolécule
1, record 1, French, biomol%C3%A9cule
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Pour comprendre précisément le fonctionnement des systèmes biologiques, il est indispensable de disposer d'informations concernant à la fois la dynamique des interactions entre biomolécules, mais aussi la stœchiométrie des complexes qui forment ces mêmes molécules, et également leurs concentrations relatives dans les fluides extracellulaires. 1, record 1, French, - biomol%C3%A9cule
Record number: 1, Textual support number: 1 OBS
Contexte tiré du Technoscope. 2, record 1, French, - biomol%C3%A9cule
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2015-10-15
Record 2, English
Record 2, Subject field(s)
- Slaughterhouses
Record 2, Main entry term, English
- rendering process
1, record 2, English, rendering%20process
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
[The] process of using high temperatures and [high] pressure to convert animal by-products with no or very low value into safe, nutritional, and economically valuable products. 2, record 2, English, - rendering%20process
Record number: 2, Textual support number: 1 OBS
It [involves] a combination of crushing, mixing, cooking, pressurizing, fat separation, water evaporation, microbial and enzyme inactivation. 2, record 2, English, - rendering%20process
Record 2, French
Record 2, Domaine(s)
- Abattoirs
Record 2, Main entry term, French
- procédé d'équarrissage
1, record 2, French, proc%C3%A9d%C3%A9%20d%27%C3%A9quarrissage
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[...] procédé utilisant de hautes températures et de fortes pressions pour convertir des sous-produits à faible valeur en produits [animaux] sains, nutritifs et économiques. 2, record 2, French, - proc%C3%A9d%C3%A9%20d%27%C3%A9quarrissage
Record number: 2, Textual support number: 1 OBS
C’est une combinaison d’actions telles qu’écraser, mélanger, cuire, [...], séparer les gras, évaporer l’eau et inactiver les microbes et les enzymes. 2, record 2, French, - proc%C3%A9d%C3%A9%20d%27%C3%A9quarrissage
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2014-09-22
Record 3, English
Record 3, Subject field(s)
- Microbiology and Parasitology
Record 3, Main entry term, English
- microbial cell
1, record 3, English, microbial%20cell
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
... immobilization techniques, which involve converting the water-soluble enzyme protein into a solid form of catalyst, either by entrapping the enzyme within a cross-linked matrix of a water-insoluble polymer or by binding the enzyme ionically or covalently to the surface of a solid supporting material, [can be used] to immobilise microbial cells. 2, record 3, English, - microbial%20cell
Record 3, French
Record 3, Domaine(s)
- Microbiologie et parasitologie
Record 3, Main entry term, French
- cellule microbienne
1, record 3, French, cellule%20microbienne
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
[les] techniques d'immobilisation, qui consistent à transformer la protéine enzymatique soluble dans l'eau en un catalyseur à l'état solide, en piégeant l'enzyme dans une matrice réticulée formée d'une polymère insoluble dans l'eau ou en l'attachant par une liaison ionique ou covalente à la surface d'un support solide, [peuvent être utilisées pour] immobiliser des cellules microbiennes. 2, record 3, French, - cellule%20microbienne
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2013-11-15
Record 4, English
Record 4, Subject field(s)
- Genetics
Record 4, Main entry term, English
- selective system
1, record 4, English, selective%20system
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
An experimental technique that enhances the recovery of specific(usually rare) genotypes. Littlefield(1964) isolated the rare products of spontaneous fusion in mixed cultures by a technique adopted from microbial genetics. Fusion of two cells deficient in two different enzymes resulted in hybrids that recovered the complete enzyme set by complementation. Only these cells survived selection against the deficient cells. 2, record 4, English, - selective%20system
Record 4, French
Record 4, Domaine(s)
- Génétique
Record 4, Main entry term, French
- système sélectif
1, record 4, French, syst%C3%A8me%20s%C3%A9lectif
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Système pour l'isolement sélectif de cellules rares. Un de ces systèmes, inventé en 1964 par Littlefield, est couramment employé. Il est fondé sur l'utilisation, en vue de fusion et d'hybridation, de mutants cellulaires présentant des déficiences enzymatiques (telles que l'absence de pyrophosphorylase d'acide inosinique ou de thymidinekinase) qui rendent ces mutants incapables de se multiplier dans un milieu sélectif spécialement conçu et contenant, en plus de précurseurs des acides nucléiques, de l'aminoptérine. Dans ces conditions, seules les cellules hybrides dans lesquelles se reconstitue, par une compensation génétique réciproque, l'appareil enzymatique intégral sont capables d'accomplir le cycle normal de synthèse d'acides nucléiques et, par conséquent, de se reproduire. 2, record 4, French, - syst%C3%A8me%20s%C3%A9lectif
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Genética
Record 4, Main entry term, Spanish
- sistema selectivo
1, record 4, Spanish, sistema%20selectivo
correct, masculine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2012-10-17
Record 5, English
Record 5, Subject field(s)
- Food Industries
Record 5, Main entry term, English
- food spoilage
1, record 5, English, food%20spoilage
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- spoilage 2, record 5, English, spoilage
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Deterioration in the color, flavor, odor, or consistency of a food product. 3, record 5, English, - food%20spoilage
Record number: 5, Textual support number: 1 CONT
Any perceivable change undergone by a food, through any cause, that renders it unwholesome or unacceptable for use. Spoilage is usually the result of enzyme or microbial action resulting, for example, in lipolytic rancidity, putrefaction, fermentation, or mould growth; but food can also spoil by other means, for example overlong storage, non-enzymic browning, or exposure to air or light. In practice the term is most frequently applied to categorising such deteriorative changes(other than food infection or intoxication) when caused by microorganisms. 4, record 5, English, - food%20spoilage
Record 5, French
Record 5, Domaine(s)
- Industrie de l'alimentation
Record 5, Main entry term, French
- altération
1, record 5, French, alt%C3%A9ration
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- altération des aliments 1, record 5, French, alt%C3%A9ration%20des%20aliments
correct, feminine noun
- détérioration 2, record 5, French, d%C3%A9t%C3%A9rioration
correct, feminine noun
- détérioration des aliments 3, record 5, French, d%C3%A9t%C3%A9rioration%20des%20aliments
correct, feminine noun
- dégradation des aliments 4, record 5, French, d%C3%A9gradation%20des%20aliments
correct, feminine noun
- dégradation de la qualité des aliments 5, record 5, French, d%C3%A9gradation%20de%20la%20qualit%C3%A9%20des%20aliments
correct, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Changement, modification, transformation d'un produit alimentaire due à des facteurs chimiques et biologiques responsables de la diminution de sa qualité. 4, record 5, French, - alt%C3%A9ration
Record 5, Key term(s)
- dégradation
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Industria alimentaria
Record 5, Main entry term, Spanish
- descomposición de alimentos
1, record 5, Spanish, descomposici%C3%B3n%20de%20alimentos
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Proceso de degradación de los nutrientes del alimento. 2, record 5, Spanish, - descomposici%C3%B3n%20de%20alimentos
Record number: 5, Textual support number: 1 CONT
La descomposición de los alimentos se debe a la acción de microorganismos como las bacterias que se encuentran presentes en el medio ambiente. Pero, los alimentos también se echan a perder debido a temperaturas altas, humedad, luz, oxígeno o simplemente con el paso del tiempo. Todos estos factores intervienen en un proceso químico y físico que transforma las sustancias de los alimentos. 3, record 5, Spanish, - descomposici%C3%B3n%20de%20alimentos
Record 6 - internal organization data 2012-06-08
Record 6, English
Record 6, Subject field(s)
- Biochemistry
- Biotechnology
Record 6, Main entry term, English
- fouling
1, record 6, English, fouling
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Fouling causes a loss in the activity of immobilized biocatalysts. This is due to the deposition of solid or colloidal materials(originally suspended in the substrate, around, or in, the pores of the support) preventing access of substrate to the enzyme.... Physical fouling by insoluble debris, fats, microbial activity or synthetic side reactions of the enzymes producing ’polymers’ can be particular problems with porous supports. This is because the availability of the enzyme can be quickly reduced by even limited blockage of the pore structure. 2, record 6, English, - fouling
Record 6, French
Record 6, Domaine(s)
- Biochimie
- Biotechnologie
Record 6, Main entry term, French
- encrassement
1, record 6, French, encrassement
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Formation de dépôts solides sur un élément. 2, record 6, French, - encrassement
Record number: 6, Textual support number: 1 OBS
Par exemple, à la surface des membranes utilisées dans les procédés de filtration (ultrafiltration, osmose inverse...), gênant l'écoulement des fluides. 2, record 6, French, - encrassement
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2011-08-09
Record 7, English
Record 7, Subject field(s)
- Biological Sciences
Record 7, Main entry term, English
- lattice
1, record 7, English, lattice
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A network or framework, as of fibers, filaments or macromolecular chains. 2, record 7, English, - lattice
Record number: 7, Textual support number: 1 CONT
In order to prepare efficient immobilized E. coli cells, the type and concentration of bifunctional reagent for cross-linking and the concentration of acrylamide monomer for lattice formation were investigated systematically. These studies showed that microbial cells, macromolecular enzymes and nucleic acids are not lost from the gel lattice during the enzyme reaction, but the low molecular substrate and product can pass freely through the gel lattice. 2, record 7, English, - lattice
Record 7, French
Record 7, Domaine(s)
- Sciences biologiques
Record 7, Main entry term, French
- réseau
1, record 7, French, r%C3%A9seau
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Structure macromoléculaire tridimensionnelle dans laquelle les chaînes sont reliées entre elles par des liaisons le plus souvent covalentes. 1, record 7, French, - r%C3%A9seau
Record number: 7, Textual support number: 1 CONT
Les enzymes sont immobilisées par diverses méthodes afin de prolonger le plus longtemps possible leur action dans le réacteur de production. Les molécules enzymatiques peuvent être retenues par adsorption ou par liaison chimique sur un support solide comme la cellulose. Elles peuvent aussi être emprisonnées dans un réseau formé par un polymère perméable, tel qu'un gel de silice. Elles peuvent enfin être enfermées dans des capsules sphériques faites de membranes de polymères semi-perméables. 2, record 7, French, - r%C3%A9seau
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2011-01-13
Record 8, English
Record 8, Subject field(s)
- Biological Sciences
Record 8, Main entry term, English
- microbial enzyme
1, record 8, English, microbial%20enzyme
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
Enzyme isolated from microorganisms. They can be classified into two forms. One is extracellular, excreted from microbial cells during culture, and the other is intracellular, remaining in the cells. For the immobilization of the latter, the enzymes must be extracted from the cells, and in some cases purification is necessary. 2, record 8, English, - microbial%20enzyme
Record number: 8, Textual support number: 1 CONT
Microbial enzymes are more useful than enzymes derived from plants or animals because of the great variety of catalytic activities available, because cheap, regular, abundant supplies of even quality can usually be developed, occasionally by surface culture but usually by the deep culture aerobic fermentation techniques widely used in the production of antibiotics; also because microbial enzymes are usually more stable than the corresponding plant and animal enzymes, and because microbial enzyme production is usually a more convenient and safer procedure than production from plant and animal sources. 3, record 8, English, - microbial%20enzyme
Record 8, French
Record 8, Domaine(s)
- Sciences biologiques
Record 8, Main entry term, French
- enzyme microbienne
1, record 8, French, enzyme%20microbienne
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 DEF
Enzyme synthétisée chez les microorganismes : les microbes se prêtent très bien à la production des enzymes, parce que les concentrations de celles-ci peuvent être considérablement accrues en agissant sur les facteurs du milieu ou en modifiant le génome. 2, record 8, French, - enzyme%20microbienne
Record number: 8, Textual support number: 1 CONT
En ce qui concerne le clonage d'enzymes microbiennes, l'impact du génie génétique reste encore à préciser. Le microorganisme recombiné génétiquement est en concurrence avec les mutants, qui peuvent être performants au plan de l'excrétion; le différentiel de performance risque d'être faible. Un cas mérite toutefois d'être signalé, celui de l'alpha amylase maltogénique thermostable de Bacillus stearothermophilus. Le gène de cette enzyme a été cloné et s'exprime dans B. subtilis. Cette approche s'avère intéressante car on ne pouvait pas par mutagénèse sur l'espèce originale faire le saut quantitatif nécessaire au plan économique. 3, record 8, French, - enzyme%20microbienne
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2011-01-10
Record 9, English
Record 9, Subject field(s)
- Biological Sciences
Record 9, Main entry term, English
- electrostatic interaction
1, record 9, English, electrostatic%20interaction
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- coulomb interaction 2, record 9, English, coulomb%20interaction
correct
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
Attractive and repulsive electrical forces between charged particles - atoms, and/or groups of atoms, and/or molecules - that are caused both by the presence of ionized species and by the electropositive and electronegative properties of the atoms. 2, record 9, English, - electrostatic%20interaction
Record number: 9, Textual support number: 1 CONT
Information on changes of enzymatic properties caused by the immobilization of enzymes and microbial cells is useful not only for the application of immobilized systems but also for the elucidation of structure-function relationships and mechanisms of enzyme reaction. The changes of enzymatic properties are considered to be caused by the following two factors. One is changes of the enzyme itself, and the other is physical and chemical properties of the carriers used for immobilization. The former involves modification of amino acid residues in the active center of the enzyme, conformational changes of the enzyme protein, and changes in the charge on the enzyme, while the latter involves the formation of diffusion layers around immobilized enzymes, steric hindrance effects, and electrostatic interactions between carrier and substrate. 3, record 9, English, - electrostatic%20interaction
Record 9, French
Record 9, Domaine(s)
- Sciences biologiques
Record 9, Main entry term, French
- interaction électrostatique
1, record 9, French, interaction%20%C3%A9lectrostatique
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Lorsque support et substrat sont tous deux électriquement chargés, il se crée, dans l'environnement immédiat de l'enzyme, des interactions électrostatiques, attractives ou répulsives, avec pour conséquence l'établissement d'un gradient de concentration du substrat et une variation de l'affinité apparente. - Km augmente si les charges du support et du substrat sont de même signe. - Km diminue si les charges sont de signe opposé. L'élévation de la force ionique du milieu tend à rapprocher les valeurs de KM pour l'enzyme native et l'enzyme immobilisée. 1, record 9, French, - interaction%20%C3%A9lectrostatique
Record number: 9, Textual support number: 1 OBS
Les interactions électrostatiques ne sont par les seuls facteurs conditionnant la valeur du Km. Ainsi les facteurs diffusionnels au sein du réacteur jouent un rôle prépondérant. 1, record 9, French, - interaction%20%C3%A9lectrostatique
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2010-12-22
Record 10, English
Record 10, Subject field(s)
- Biological Sciences
Record 10, Main entry term, English
- enzyme column
1, record 10, English, enzyme%20column
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
- packed-bed column 2, record 10, English, packed%2Dbed%20column
correct
- packed column 2, record 10, English, packed%20column
correct
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
Columns can be operated in an expanded bed form at higher flow rates, so preventing fouling and compression and improving mass transfer. Alternatively packed biocatalyst particles can be used in a trickle-flow mode as in some waste-water processes employing microbial flocs.... Packed columns allow a high concentration of biocatalyst to be used. The product molecules or other inhibitors produced during the reaction are constantly swept out of the reactor so that the concentration of products are minimized-so less product inhibition occurs.... The decay of enzyme columns packed with immobilized enzyme or immobilized microbial cells generally proceeds in an exponential pattern related to operating time. 2, record 10, English, - enzyme%20column
Record number: 10, Textual support number: 1 OBS
Devices for continuous analysis using enzyme columns or enzyme-coated tubes have been developed to the stage where they can be commercialized. In order to scale up an enzyme column for industrial purposes, the following factors must be suitably selected; appropriate materials for the column, shape of the column, and a flow pump suitable for the pressure drop. 3, record 10, English, - enzyme%20column
Record 10, French
Record 10, Domaine(s)
- Sciences biologiques
Record 10, Main entry term, French
- colonne d'enzyme
1, record 10, French, colonne%20d%27enzyme
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
Dans un premier type de réacteur, les enzymes insolubilisées, attachées à des particules, sont brassées dans le substrat. Cette technologie primitive, utilisée dans les industries agro-alimentaires, est simplement dérivée de celles utilisées pour les enzymes solubles. La récupération de l'enzyme insoluble reste délicate et s'opère au prix de grandes pertes. Aussi cette technique est-elle peu utilisée. Les autres types de réacteurs reposent sur le passage lent du substrat, à une vitesse déterminée par l'expérience, au travers d'une colonne d'enzyme immobilisée. Essentiellement, le produit de réaction circule X fois à travers la même colonne, jusqu'à l'obtention du rendement adéquat. De ce fait, le problème de la couche non agitée le long du support solide est atténué. 1, record 10, French, - colonne%20d%27enzyme
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2010-04-21
Record 11, English
Record 11, Subject field(s)
- Molecular Biology
- Biotechnology
Record 11, Main entry term, English
- adenosine triphosphate bioluminescence technology
1, record 11, English, adenosine%20triphosphate%20bioluminescence%20technology
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
- ATP bioluminescence technology 2, record 11, English, ATP%20bioluminescence%20technology
correct
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
ATP bioluminescence technology is based on the reaction of the enzyme complex luciferase-luciferin, in the presence of oxygen ans magnesium, with ATP released from microbial cells resulting in the production of light. The light emitted is proportional to the amount of ATP released. 3, record 11, English, - adenosine%20triphosphate%20bioluminescence%20technology
Record number: 11, Textual support number: 2 CONT
ATP bioluminescence technology reports results in relative light units (RLUs), which indicate the general level of organix residue or soil on a given surface. 4, record 11, English, - adenosine%20triphosphate%20bioluminescence%20technology
Record number: 11, Textual support number: 1 OBS
ATP: adenosine triphosphate 1, record 11, English, - adenosine%20triphosphate%20bioluminescence%20technology
Record 11, French
Record 11, Domaine(s)
- Biologie moléculaire
- Biotechnologie
Record 11, Main entry term, French
- adénosine triphosphate-métrie bioluminescence
1, record 11, French, ad%C3%A9nosine%20triphosphate%2Dm%C3%A9trie%20bioluminescence
correct, feminine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
- ATP-métrie par bioluminescence 2, record 11, French, ATP%2Dm%C3%A9trie%20par%20bioluminescence
correct, feminine noun
Record 11, Textual support, French
Record number: 11, Textual support number: 1 DEF
Méthode permettant de détecter la présence de bactéries à partir de leur contenu en ATP (adénosine triphosphate) qui est déterminé par des réactions enzymatiques produisant de la lumière (bioluminescence). 1, record 11, French, - ad%C3%A9nosine%20triphosphate%2Dm%C3%A9trie%20bioluminescence
Record number: 11, Textual support number: 1 CONT
ATP-métrie par luminescence: l'ATP, qui est une source d'énergie présente dans toutes les cellules vivantes produit de la lumière en présence du complexe enzymatique luciférine-luciférase, d'oxygène et de magnésium. La quantité de lumière engendrée dépend de la quantité d'ATP et donc de la biomasse. 3, record 11, French, - ad%C3%A9nosine%20triphosphate%2Dm%C3%A9trie%20bioluminescence
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2004-05-21
Record 12, English
Record 12, Subject field(s)
- Biological Sciences
- Biotechnology
Record 12, Main entry term, English
- hydrolase
1, record 12, English, hydrolase
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
Class of enzymes, which catalyze the hydrolysis of proteins, nucleic acids, starch, fats, phosphate esters, and other macromolecular substances. 2, record 12, English, - hydrolase
Record number: 12, Textual support number: 1 CONT
Many kinds of hydrolases and microbial cells having their enzyme activities have been immobilized, and they have been used as solid catalysts for chemical processes. The reasons for this extensive use are considered to be as follows : 1) there are many different kinds of hydrolases; 2) hydrolases are generally stable; 3) hydrolases do not require coenzymes; 4) hydrolases become more stable on immobilization and can be used for a long time. 3, record 12, English, - hydrolase
Record 12, French
Record 12, Domaine(s)
- Sciences biologiques
- Biotechnologie
Record 12, Main entry term, French
- hydrolase
1, record 12, French, hydrolase
correct, feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 DEF
Classe d'enzymes provoquant la coupure d'une molécule avec fixation d'eau. 2, record 12, French, - hydrolase
Record number: 12, Textual support number: 1 CONT
Les glycannes de structure oligomannosidique peuvent être phosphorylées en position 6 de certains résidus de mannose et, selon un mécanisme proposé par Sly, les résidus de mannose-6-phosphate des glycannes portées par les hydrolases lysosomiales représentent alors le signal qui permet la ségrégation de ces enzymes d'avec les glycoprotéines "externalisées" de la cellule. En effet, seules les glycoprotéines porteuses du signal mannose-6-phosphate seront fermement fixées à un récepteur de la membrane golgienne et leur maturation vers une structure N-acétyl-lactosaminique sera bloquée. 3, record 12, French, - hydrolase
Record number: 12, Textual support number: 1 OBS
Les hydrolases sont divisées en sous-groupes suivant la nature de leurs substrats : estérases (...), actives sur des liaisons esters, d'un alcool et d'un acide organique (carboxyl ester hydrolases), d'un alcool et d'un acide phosphorique (phosphatases), et sur des liaisons thiol ester (désacylases); osidases (...), actives sur des liaisons osidiques; peptides hydrolases (...), actives sur des liaisons peptidiques, etc. 4, record 12, French, - hydrolase
Record 12, Spanish
Record 12, Campo(s) temático(s)
- Ciencias biológicas
- Biotecnología
Record 12, Main entry term, Spanish
- hidrolasa
1, record 12, Spanish, hidrolasa
correct, feminine noun
Record 12, Abbreviations, Spanish
Record 12, Synonyms, Spanish
Record 12, Textual support, Spanish
Record number: 12, Textual support number: 1 DEF
[Clase de] enzimas que disocian compuestos por medio del agua. 2, record 12, Spanish, - hidrolasa
Record 13 - internal organization data 2003-05-01
Record 13, English
Record 13, Subject field(s)
- Biological Sciences
- Biotechnology
Record 13, Main entry term, English
- microbial electrode
1, record 13, English, microbial%20electrode
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
The use of biochemical electrodes having bio-specificity has been attracting considerable attention recently for the checking or control of concentrations of metabolites in body fluids. This bio-specificity is based on enzyme, and immobilized enzymes are used in many cases. These electrodes are suitable for the measurement of substrates, coenzymes, or inhibitors of an enzyme, and are called "enzyme electrodes" or "microbial electrodes" when microbial cells are used. 2, record 13, English, - microbial%20electrode
Record 13, French
Record 13, Domaine(s)
- Sciences biologiques
- Biotechnologie
Record 13, Main entry term, French
- électrode microbienne
1, record 13, French, %C3%A9lectrode%20microbienne
correct, feminine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
Les électrodes microbiennes [...] sont composées d'une partie contenant des bactéries immobilisées ou libres (mais alors retenues par une membrane semi-perméable), associée à une électrode permettant de déceler les variations de l'activité métabolique de ces microbes (consommation d'O2, émission de CO2, d'ammoniaque ou d'H+). Si une espèce bactérienne exige pour croître une molécule comme le gaz méthane par exemple, sa vitesse de croissance sera proportionnelle à la concentration en ce gaz, et se reflétera dans la production de tel ou tel métabolite mesuré grâce à l'électrode. 1, record 13, French, - %C3%A9lectrode%20microbienne
Record number: 13, Textual support number: 1 OBS
La sensibilité des mesures est souvent très élevée (le méthane a été détecté à des concentrations dix fois plus faibles que par chromatographie); la stabilité importante : deux mille deux cents dosages d'éthanol ont été réalisés par M. Hikuma pendant trois semaines avec la même électrode; la variété des micro-organismes pouvant être employée à de telles mesures est très grande et tire un large parti de la génétique classique et de nombreux mutants exigeants qu'elle sait produire. 1, record 13, French, - %C3%A9lectrode%20microbienne
Record 13, Key term(s)
- électrode microorganisme
Record 13, Spanish
Record 13, Campo(s) temático(s)
- Ciencias biológicas
- Biotecnología
Record 13, Main entry term, Spanish
- electrodo microorganismo
1, record 13, Spanish, electrodo%20microorganismo
correct, masculine noun
Record 13, Abbreviations, Spanish
Record 13, Synonyms, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2000-03-29
Record 14, English
Record 14, Subject field(s)
- Biochemistry
Record 14, Main entry term, English
- glycerokinase
1, record 14, English, glycerokinase
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
- glycerol kinase 2, record 14, English, glycerol%20kinase
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
An enzyme that catalyzes the phosphorylation of glycerol to glycerophosphate during microbial fermentation of propionic acid. 1, record 14, English, - glycerokinase
Record 14, French
Record 14, Domaine(s)
- Biochimie
Record 14, Main entry term, French
- glycérol-kinase
1, record 14, French, glyc%C3%A9rol%2Dkinase
correct, masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 CONT
Les taux de phosphorylation du glycérol et d'oxydation du glycérol-3-phosphate sont moins rapides chez les rats consommant de l'éthanol que chez les rats témoins, ce qui indique une diminution de l'activité de la glycérol kinase et de la glycérol-3-phosphate déshydrogénase, donc, une utilisation plus lente du glycérol. Le taux d'utilisation du glycérol est fonction de la dose de glycérol et de la concentration d'oxygène. 1, record 14, French, - glyc%C3%A9rol%2Dkinase
Record 14, Key term(s)
- glycérol kinase
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 1999-05-07
Record 15, English
Record 15, Subject field(s)
- Biochemistry
Record 15, Main entry term, English
- enzyme inhibitor
1, record 15, English, enzyme%20inhibitor
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
- inhibitor 2, record 15, English, inhibitor
correct
Record 15, Textual support, English
Record number: 15, Textual support number: 1 DEF
An agent that prevents the normal action of an enzyme without destroying it. 3, record 15, English, - enzyme%20inhibitor
Record number: 15, Textual support number: 1 CONT
Since known pharmacological agents do inhibit enzymes and since some diseases are associated with excessive or unregulated enzyme activities, it was reasoned that enzyme inhibitor from microbial broths might exhibit valuable pharmacological activities. 4, record 15, English, - enzyme%20inhibitor
Record 15, French
Record 15, Domaine(s)
- Biochimie
Record 15, Main entry term, French
- inhibiteur enzymatique
1, record 15, French, inhibiteur%20enzymatique
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- inhibiteur d'enzyme 2, record 15, French, inhibiteur%20d%27enzyme
correct, masculine noun
Record 15, Textual support, French
Record number: 15, Textual support number: 1 CONT
L'inhibition enzymatique est un phénomène au cours duquel un inhibiteur exerce une répression sur l'activité d'un enzyme. L'inhibiteur peut-être un produit de la chaîne de synthèse. 3, record 15, French, - inhibiteur%20enzymatique
Record number: 15, Textual support number: 1 OBS
Ne pas confondre avec «antienzyme» (voir cette fiche), que la source LAROG (Grand dict. encycl. Larousse) donne à tort comme le synonyme de «inhibiteur enzymatique». 4, record 15, French, - inhibiteur%20enzymatique
Record 15, Spanish
Record 15, Campo(s) temático(s)
- Bioquímica
Record 15, Main entry term, Spanish
- inhibidor enzimático
1, record 15, Spanish, inhibidor%20enzim%C3%A1tico
correct, masculine noun
Record 15, Abbreviations, Spanish
Record 15, Synonyms, Spanish
- inhibidor de enzimas 2, record 15, Spanish, inhibidor%20de%20enzimas
correct, masculine noun
Record 15, Textual support, Spanish
Record number: 15, Textual support number: 1 DEF
Agente que inhibe la acción normal de una enzima sin destruirla. 3, record 15, Spanish, - inhibidor%20enzim%C3%A1tico
Record 16 - internal organization data 1997-05-21
Record 16, English
Record 16, Subject field(s)
- Renewable Energy
Record 16, Main entry term, English
- enzyme enhancing agent 1, record 16, English, enzyme%20enhancing%20agent
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
The Use of Microbial Enzymes from the Rumen and an Enzyme Enhancing Agent to Maximize Yield of Ethanol from Cereal Grain. [Source : ethanol project-Cmpdxwor. en p. 1]. 1, record 16, English, - enzyme%20enhancing%20agent
Record 16, French
Record 16, Domaine(s)
- Énergies renouvelables
Record 16, Main entry term, French
- agent stimulateur d'enzyme
1, record 16, French, agent%20stimulateur%20d%27enzyme
masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
Maximisation du rendement en éthanol à partir des céréales au moyen des enzymes microbiennes du rumen et d'un agent de stimulation enzymatique. [Source : projet éthanol - Cmpdxwor.fr p. 1]. 1, record 16, French, - agent%20stimulateur%20d%27enzyme
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 1990-01-04
Record 17, English
Record 17, Subject field(s)
- Biological Sciences
Record 17, Main entry term, English
- production of L-methionine
1, record 17, English, production%20of%20L%2Dmethionine
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 CONT
The production of L-methionine and L-phenylalanine from the corresponding N-acetyl-DL-derivatives using kidney or microbial acylase was chosen as a model to test the enzyme membrane reactor... Enzymatic resolution can only be competitive when coupled with an efficient enzyme recycling or immobilization system and an easy racemization of the undesired acetyl-D-amino acids. 1, record 17, English, - production%20of%20L%2Dmethionine
Record 17, French
Record 17, Domaine(s)
- Sciences biologiques
Record 17, Main entry term, French
- production de la L-méthionine
1, record 17, French, production%20de%20la%20L%2Dm%C3%A9thionine
correct, feminine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, Textual support number: 1 CONT
La production de l'antipode L de la méthionine n'a pas d'intérêt alimentaire puisque c'est l'un des rares acides aminés dont les formes D et L sont assimilées. (...) La méthode d'immobilisation qui s'est avérée la plus efficace est l'adsorption sur DEAE-Sephadex et la production atteignait 20 tonnes par mois en 1972 pour deux réacteurs de 1 000 litres fonctionnant en parallèle. En effet, le dérivé insoluble perd peu à peu une fraction de son activité (40% en 30 jours), probablement par désorption de l'enzyme, ce qui nécessite une recharge périodique. Par rapport à l'utilisation de l'enzyme en solution, ce procédé permet d'abaisser le coût de production de la L-méthionine de 40% le prix de l'enzyme devenant alors presque négligeable. 1, record 17, French, - production%20de%20la%20L%2Dm%C3%A9thionine
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 1990-01-02
Record 18, English
Record 18, Subject field(s)
- Biological Sciences
Record 18, Main entry term, English
- fermentative method
1, record 18, English, fermentative%20method
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
Record 18, Textual support, English
Record number: 18, Textual support number: 1 CONT
If microbial cells having multienzyme systems are immobilized and can be used as a solid catalyst, it may be possible to replace fermentative methods involving multienzyme reactions by continuous enzyme reactions using immobilized cells. 1, record 18, English, - fermentative%20method
Record 18, French
Record 18, Domaine(s)
- Sciences biologiques
Record 18, Main entry term, French
- procédé de la fermentation
1, record 18, French, proc%C3%A9d%C3%A9%20de%20la%20fermentation
correct, masculine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 CONT
Le terme cellules immobilisées couvre aussi bien les cellules non viables que celles ayant conservé la possibilité de pouvoir se diviser après l'immobilisation. Dans le premier cas (...), les microorganismes fragilisés par l'utilisation de réactifs chimiques deviennent des "sacs à enzymes" et sont utilisés pour une réaction de transformation unique. Par contre, dans le second cas (...), avec des cellules viables, il est possible de mettre au point une véritable alternative aux procédés de la fermentation en mettant en jeu des séquences réactionnelles utilisant des cofacteurs et des métabolites intermédiaires. Outre l'intérêt de réaliser des procédés continus, ces systèmes utilisant des cellules viables ont l'avantage de permettre le maintien d'importantes concentrations cellulaires. 1, record 18, French, - proc%C3%A9d%C3%A9%20de%20la%20fermentation
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 1985-06-14
Record 19, English
Record 19, Subject field(s)
- Optical Instruments
- Biochemistry
Record 19, Main entry term, English
- optical fibre-linked measuring device 1, record 19, English, optical%20fibre%2Dlinked%20measuring%20device
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record number: 19, Textual support number: 1 CONT
Some progress [in on-line measurement of microbial concentration] has been made with enzyme electrodes and optical fibre-linked measuring devices but more effort is still required to make these and other monitoring devices more suitable for industrial use. 1, record 19, English, - optical%20fibre%2Dlinked%20measuring%20device
Record 19, Key term(s)
- optical fiber-linked measuring device
Record 19, French
Record 19, Domaine(s)
- Instruments d'optique
- Biochimie
Record 19, Main entry term, French
- dispositif de mesure raccordé à des fibres optiques
1, record 19, French, dispositif%20de%20mesure%20raccord%C3%A9%20%C3%A0%20des%20fibres%20optiques
masculine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 CONT
Des électrodes à enzymes et des dispositifs de mesure raccordés à des fibres optiques ont permis de réaliser certains progrès [en ce qui concerne la mesure fiable en temps réel de la concentration des microbes], mais des études plus poussées sont encore nécessaires pour mieux adapter les dispositifs de surveillance de ce genre à une utilisation industrielle. 1, record 19, French, - dispositif%20de%20mesure%20raccord%C3%A9%20%C3%A0%20des%20fibres%20optiques
Record 19, Spanish
Record 19, Textual support, Spanish
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