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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mogilnaya, Olga, Ronzhin, Nikita, Artemenko, Karina, Bondar, Vladimir
Заглавие : Nanodiamonds as an effective adsorbent for immobilization of extracellular peroxidases from luminous fungus Neonothopanus nambi to construct a phenol detection system
Колич.характеристики :9 с
Коллективы : Russian Academy of Sciences [0356-2016-0709]
Место публикации : Biocatal. Biotransform.: TAYLOR & FRANCIS LTD, 2019. - Vol. 37, Is. 2. - С. 97-105. - ISSN 1024-2422, DOI 10.1080/10242422.2018.1472586. - ISSN 1029-2446(eISSN)
Примечания : Cited References:50. - This work was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences [project no. 0356-2016-0709].
Предметные рубрики: CARBON NANOTUBES
ARMILLARIA-BOREALIS
LIGHT-EMISSION
DEGRADATION
Ключевые слова (''Своб.индексиров.''): nanodiamonds--immobilization--luminous fungus--beta-glucosidase--peroxidase--indicator system
Аннотация: Modified nanodiamonds (MNDs) produced by detonation synthesis can be used as an effective adsorbent to immobilize extracellular peroxidases of the luminous basidiomycete Neonothopanus nambi. The enzymes are firmly immobilized on MND particles and exhibit catalytic activity. The indicator system (the MND-enzyme complex) reused many times retains its ability to catalyze reaction of co-oxidation of phenol and 4-aminoantipirine in the presence of hydrogen peroxide and remains functionally active during long-term storage (for 1 month or longer) in aqueous suspensions at 4 degrees C. MNDs and enzymes of higher fungi can be effectively used to construct new reusable indicator systems for analytical applications such as monitoring contamination of aquatic environments by phenolic compounds.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bartsev S. I., Pochekutov A. A.
Заглавие : An elementary multistage discrete model of soil organic matter transformations with a continuous scale of stability
Место публикации : Ecol. Model.: Elsevier B.V., 2019. - Vol. 393. - С. 61-65. - ISSN 03043800 (ISSN) , DOI 10.1016/j.ecolmodel.2018.12.012
Ключевые слова (''Своб.индексиров.''): kinetics of soil organic matter transformations--model of soil organic matter transformations--soil organic matter--biogeochemistry--biological materials--decay (organic)--organic compounds--soils--continuous scale--discrete modeling--elementary model--law of mass action--multistage process--realistic model--soil organic matters--transformation process--mathematical transformations--biotransformation--chemical alteration--decomposition--numerical model--reaction kinetics--soil organic matter
Аннотация: The proposed elementary mathematical model of formation and decomposition of soil organic matter (SOM) is based on using equations of chemical kinetics to describe the multistage process of SOM transformation. The model both describes each step of transformation in accordance with the law of mass action and postulates the trend of increasing stability of the matter towards further transformation, which is common for all steps. Analysis of the model demonstrates that it is extremely difficult to construct a realistic model of SOM dynamics by assembling elementary models of the type presented in this study into the full description of SOM transformation processes. © 2018 Elsevier B.V.
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