T Nagiev is the Vice-President of Azerbaijan National Academy of Sciences, the Director of Research Center of Azerbaijan National Encyclopedia and also, the Department Chief of Nagiev Institute of Catalysis and Inorganic Chemistry of ANAS. He is a Professor of the Department of the Physical and Colloid Chemistry of Baku State University.
The inducing effect of hydrogen peroxide on synchronous monooxidation reaction of hydrocarbons in the presence of biomimetic catalysts is accompanied by two interrelated and interacting-coherent reactions. The decomposition reaction of H2O2 (primary) forms a biomimetic catalytic intermediate, in the interaction of which with the substrate, its transformation occurs in a secondary reaction-coherently, synchronized with it. The mechanism of such coherent-synchronized reactions is considered in the process of heterogeneously catalyzed monooxidation of cyclohexane by hydrogen peroxide in the gas phase in the presence of a biomimetic catalyst, which is described by the following generalized scheme: It follows from this scheme that the primary H2O2 decomposition reaction forms highly active hydroperoxide active center ImtOOH, which interacts with cyclohexane by forming the desired products (secondary reactions) - C6H11OH, C6H10O, C6H10 and C6H8. As a biomimetic catalyst was used per-FTPhPFe(III)OH/Al2O3, which synthesized based on the iron-porphyrin complex, simulating the catalytic functions of the enzyme of the oxoreductase-catalase and monooxygenase group, which are distinguished by their selective and highly active action and necessary for the creation of effective biomimics. Experimental study of the monooxidation reaction of cyclohexane shows that the process of formation of cyclohexanone, cyclohexanol and cyclohexene proceeds along a sequentially parallel mechanism, which can be represented as the following scheme: Each stage indicated in this scheme proceeds according to the previously described coherently synchronized mechanism.
Yuji Fukumoto is a graduate student of Microbiology from the Environmental Biotechnology Laboratory of Kindai University in Wakayama.
World population is now increasing, and the United Nations predicts that the world population will be 9.8 billion by 2050. As a result, higher food production is required. One of the solutions is the use of pesticides. In order to achieve higher food production, the burden on the environment has to be smaller and more sustainable. In view of this fact, microbial pesticides have attracted attention in recent years. Microbial pesticides are agents that use cells, and/or the substances produced by microorganisms and inhibit the growth of phytopathogenic fungi. Compared with chemical pesticides, microbial pesticides are less likely to remain in the environment, and it is difficult to develop drug-resistant bacteria. Therefore, we focused on Bacillus bacteria in this study. Bacillus bacteria are broadly distributed microbial microorganisms in the soil. It is reported that bacteria of the genus Bacillus form spores and biofilms and are resistant to growth inhibitory conditions. Using Bacillus subtilis strain RB14, which is known to produce iturin A, an antifungal substance. We examined the influence of medium concentration on biofilm formation and the production of antibiotic substance. The relationship between biofilm formation and antifungal substance production was clearly observed, and it was shown that antifungal substance was produced after biofilm formation. We have previously observed the biofilm formation in the medium with the agriculture residues. Using these properties, the experiment to increase the production amount of antifungal substance is under consideration.