HOME
Full Articles List
Search by Author
Title: THE REACTOR SYSTEM FOR BIOSYNTHESIS OF BACTERIAL CELLULOSE WITH DESIRED MICROFIBRIL ORIENTATION
BibTex 
Open this article in the author's DB |
|
THE REACTOR SYSTEM FOR BIOSYNTHESIS OF BACTERIAL CELLULOSE WITH DESIRED MICROFIBRIL ORIENTATION
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
1314-2704
|
|
|
|
||
|
|
English
|
|
|
|
18
|
|
|
|
6.1
|
|
|
|
|
|
|
|
||
|
|
The drip feed reactor system for continuous biosynthesis of bacterial cellulose with
desired microfibril orientation is proposed. Native bacterial cellulose is obtained on the glucose media using symbiotic complex of yeast and bacteria A.xylinum. Micromorphological characteristics of the bacterial cellulose structure are visualized using SEM Sigma VP ZEISS scanning electron microscopy. The crystallinity degree of the specimens is calculated by new method using X-ray diffractometry (XRD-7000S diffractometer). The 28 cm-long bacterial cellulose specimen was obtained in drip feed reactor system during 12 days continuous cultivation. Internal biofouling of reactor system tubes was observed. Globular microfibril structures were formed in the matrix of bacterial cellulose in the drip feed reactor system unlike the cellulose obtained in static conditions. The diffraction patterns of bacterial cellulose specimens synthesized in static and dynamic (the drip feed reactor system) conditions were obtained. It was shown that basic crystalline compound of the specimens was I?-type cellulose. The crystallinity degree of bacterial cellulose from the reactor system was 12 %, whereas for cellulose synthesized in static conditions this parameter was equal to 15 %. The structure of bacterial cellulose became less oriented because of increasing of ratio of amorphous parts in comparison with structure of bacterial cellulose synthesized in static conditions. |
|
|
|
conference
|
|
|
|
||
|
|
||
|
|
18th International Multidisciplinary Scientific GeoConference SGEM 2018
|
|
|
|
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
|
|
|
|
Proceedings Paper
|
|
|
|
STEF92 Technology
|
|
|
|
International Multidisciplinary Scientific GeoConference-SGEM
|
|
|
|
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
|
|
|
|
505-510
|
|
|
|
02-08 July, 2018
|
|
|
|
website
|
|
|
|
cdrom
|
|
|
|
1833
|
|
|
|
microfibril?s orientation; bacterial cellulose; electron microscopy;
crystallinity degree |
|
Download PDF