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Characterization of a novel thermo-stable lipase from endophyte Pseudomonas putida in Pistacia chinensis Bunge
Springer Science and Business Media LLC - Tập 53 - Trang 524-532 - 2017
C. Song, Z. Liu, Q. Xie, H. Wang, Y. Huang, Y. Ruan, D. Chen
A novel lipolytic enzyme-producing endophytic strain PC2 was successfully isolated from the seeds of an ideal bioenergy plant Pistacia chinensis Bunge. Based on the analysis of morphology and 16S rRNA sequence, bacterial strain PC2 was identified as a subspecies of Pseudomonas putida, therefore named as P. putida PC2. Whole-genome sequencing showed PC2 contained a 1224-nucleotide lipase gene (name...... hiện toàn bộ
Effect of the composition of the medium on the characteristics of polydisulfide bioantioxidants
Springer Science and Business Media LLC - Tập 36 - Trang 385-393 - 2000
A. N. Eremin
Characteristics of polydisulfides of gallic acid (PDSG), 2-amino-4-nitrophenol (PDSANP), and biuret (PDSB) depending on the composition of the aqueous medium were studied. In contrast to PDSANP and PDSB, there was oxidation of PDSG with accumulation of products of polydisulfide transformation in the medium. The rate of PDSG autoxidation depended on pH on the concentration of polydisulfide and buff...... hiện toàn bộ
State of fungal lipases of Rhizopus microsporus, Penicillium sp. and Oospora lactis in border layers water—solid phase and factors affecting catalytic properties of Enzymes
Springer Science and Business Media LLC - Tập 51 - Trang 600-607 - 2015
Kh. T. Khasanov, K. Davranov, M. M. Rakhimov
We demonstrated that a change in the catalytic activity of fungal lipases synthesized by Rhizopus-microsporus, Penicillium sp. and Oospora lactis and their ability to absorb on different sorbents depended on the nature of groups on the solid phase surface in the model systems water: lipid and water: solid phase. Thus, the stability of Penicillium sp. lipases increased 85% in the presence of sorsil...... hiện toàn bộ
Comparison of Leaching of Copper–Nickel Concentrates and Metallurgical Slag with Biogenic Ferric Iron
Springer Science and Business Media LLC - Tập 58 - Trang 463-467 - 2022
N. V. Fomchenko, A. E. Panyushkina, V. S. Melamud, M. I. Muravyov
The leaching of nonferrous metals from copper–nickel sulfide concentrates and copper–nickel slags with ferric sulfate solution obtained by microbial oxidation of ferrous sulfate was studied. The process was carried out at 80°С, pH 1.15, and 9.8 g/L Fe3+. Most nickel was shown to be leached from the slags within 1.5 h. When copper–nickel concentrates were leached for 7 h, the maximum possible conce...... hiện toàn bộ
Co-expression of xylose reductase gene from Candida shehatae and endogenous xylitol dehydrogenase gene in Saccharomyces cerevisiae and the effect of metabolizing xylose to ethanol
Springer Science and Business Media LLC - Tập 46 - Trang 415-420 - 2010
Jinxin Zhang, Min Yang, Shen Tian, Yazhen Zhang, Xiushan Yang
The inability oft Saccharomyces cerevisiae to utilize xylose is attributed to its inability to convert xylose to xylulose. Low xylose reductase (XR) and xylitol dehydrogenase (XDH) activities in S. cerevisiae are regarded as the reason of blocking the pathway from xylose to xylulose. We had found that Candida shehatae could also be another source for XR gene except Pichia stipitis in the previous ...... hiện toàn bộ
Microorganisms in the Elimination of Oil Pollution Consequences (Review)
Springer Science and Business Media LLC - Tập 55 - Trang 344-354 - 2019
T. Yu. Korshunova, S. P. Chetverikov, M. D. Bakaeva, E. V. Kuzina, G. F. Rafikova, D. V. Chetverikova, O. N. Loginov
The data on the effect of oil and oil products on soil, soil microbiocenosis, and plant cover are summarized. Reclamation and its stages and the bioremediation of oil-contaminated soils with the use of biological products are described. The article discusses some techniques to accelerate hydrocarbon biodegradation in the soil environment, such as the use of biosurfactants and their microorganisms;...... hiện toàn bộ
Modeling of anammox process with the biowin software suite
Springer Science and Business Media LLC - Tập 53 - Trang 78-84 - 2017
A. G. Dorofeev, Yu. A. Nikolaev, M. N. Kozlov, M. V. Kevbrina, A. M. Agarev, A. Yu. Kallistova, N. V. Pimenov
Mathematical modeling of the biotechnology for the removal of ammonium nitrogen from wastewater based on the anammox process was performed with the specialized BioWin software suite (EnviroSim Associates Ltd., Canada). Nitrogen removal by means of the transformation of ammonium nitrogen to molecular nitrogen was conducted in a continuous stirred bioreactor carrying both suspended and immobilized a...... hiện toàn bộ
Detection of Cholera Toxin in Culture Medium by Dot-Immunoassay on Dipsticks
Springer Science and Business Media LLC - - 2023
A. V. Boyko, Ekaterina Mikheeva, Taisiya Zakharova, Н. А. Осина
The effect of high-molecular weight chitosans on the antioxidant and immune systems of the honeybee
Springer Science and Business Media LLC - Tập 52 - Trang 553-557 - 2016
E. S. Saltykova, A. A. Karimova, A. R. Gataullin, L. R. Gaifullina, R. T. Matniyazov, M. A. Frolova, A. I. Albulov, A. G. Nikolenko
High-molecular weight chitosan (200 kDa, 75% deacetylated) and N-succinoyl chitosan (300 kDa, 75% deacetylated) were shown to have a preadaptive effect and increase the lifespan of honeybees due to the induction of protective antioxidant and immune mechanisms. Chitosan with a molecular weight of 200 kDa had a fungistatic effect on a pathogenic fungus that causes ascospherosis, a disease of bee lar...... hiện toàn bộ
Immobilization of Bacillus mucilaginosus, a Producer of Exopolysaccharides, on Chitin
Springer Science and Business Media LLC - Tập 38 - Trang 259-262 - 2002
G. G. Nyanikova, E. E. Kuprina, O. V. Pestova, S. V. Vodolazhskaya
The bacteria Bacillus mucilaginosus were immobilized on chitin sorbents. Exopolysaccharides produced byB. mucilaginosus were capable of efficiently sorbing copper ions. A composite biosorbent involving the chitin derivative Khizitel with immobilized B. mucilaginosus cells at the stage of active exopolysaccharide synthesis was developed.
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