Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


структура

Characterization of the Fatty-Acid Composition of Lipids A from Azospirillum Lipopolysaccharides

On the basis of the results from analyses of lipopolysaccharides of eight Azospirillum strains, we showed that the major fatty-acid contents in these lipopolysaccharides were those of 3-hydroxytetradecanoic, hexadecanoic 3-hydroxyhexadecanoic, and octadecenoic acids. This finding confirms that these microorganisms are correctly assigned to the α-subclass of Proteobacreria. An exception was the fatty-acid profile of the lipopolysaccharide from A.

ХАРАКТЕРИСТИКА СОСТАВА ЛИПОПОЛИСАХАРИДА ГАЛОТОЛЕРАНТНЫХ БАКТЕРИЙ AZOSPIRILLUM HALOPRAEFERENS Au4

Проведено исследование состава липополисахарида почвен-
ных галотолерантных бактерий Azospirillum halopraeferens Au4.
Выявлена более высокая электрофоретическая подвижность
S-форм ЛПС A. halopraeferens Au4 в полиакриламидном геле,
по сравнению с типовым штаммом A. brasilense Sp7. Установ-
лено, что состав ЖК ЛПС штамма Au4 незначительно отличал-
ся от ЛПС большинства изученных штаммов A. brasilense и
A. lipoferum. В коровой области ЛПС отмечено преобладание

Features of the Reactions of n-hexane on the Catalyst NH4(ZHM)

The process of catalytic reforming remains one of the main processes of the modern petrochemical industry, allowing for obtain commodity products – gasoline, with high detonation resistance and raw materials for the petrochemical industry – aromatic hydrocarbons. One of the most important tasks of improving the reforming process is the development of new efficient catalytic systems that don’t have noble metals in their composition.