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Digitale Medien

A novel approach to selective oxidation of gaseous hydrocarbons (1992)

Kovalenko, G. A. ; Sokolovskii, V. D.

Springer

Reaction kinetics and catalysis letters 48 (1992), S. 447-453

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ISSN: 1588-2837

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Beschreibung / Inhaltsverzeichnis: Abstract Процессы селективного окисления углеводородов в мягких условиях можно реализовать при участии микроорганизмов, обладающих монооксигеназной активностью. Исследованы биокаталитические свойства некоторых штаммов метаноотрофов (микроорганизмов, утилизирующих метан в качестве ростового субстрата) в реакциях селективного окисления метана и пропилена. Показано, что в процессе окислительной биотрансформации этих углеводородов при соответствующих условиях и температурах, близких к комнатной, образуются метанол и эпоксид пропилена со 100%-ной селективностью.

Notizen: Abstract Selective oxidation of hydrocarbons can be performed by some microorganisms possessing monooxygenase activity. Biocatalytic activities of some strains of methanotrophic bacteria (which utilize methane as a sole source of carbon and energy for growth) were investigated in the reactions of partial oxidation of methane and propylene. Formation of commercially valuable oxy-products (methanol, epoxide) occurred with 100% selectivity under the mild reaction conditions studied.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02162693

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Digitale Medien

Epoxidation of propene by microbial cells immobilized on inorhanic supports (1992)

Kovalenko, G. A. ; Sokolovskii, V. D.

New York, NY [u.a.] : Wiley-Blackwell

Biotechnology and Bioengineering 39 (1992), S. 522-528

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ISSN: 0006-3592

Schlagwort(e): inorganic supports ; gas-utilizing micro-organisms ; adsorption ; double immobuilization ; propene epoxidation ; Chemistry ; Biochemistry and Biotechnology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Immobilization of gas-utilizing microorganism strains (Mycobacteria, Rhodococcus, methane-utilizers) on inorganic supports based on alumina, silicates, and carbon was carried out to develop heterogeneous biocatalysts for the biotechnologic processes, including the process of propene epoxidation. Adsorption ability of these microorganisms, biocatalytic properties of resting and immobilized bacterial cells, and effect of immobilization tehniques on biocatalysis were studied. An approach of double immobilization using inorganic materials (supports and gel) was proposed as simple, universal, and available methopd to immobilize bacterial cells, resulting in a higher retention (up to 100%) of cells' enzymatic activity and enhanced stability.

Zusätzliches Material: 4 Ill.