Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Alexandra Tonkova"'
Publikováno v:
Process Biochemistry. 47:2139-2145
The cgt -gene from the alkaliphilic halotolerant Bacillus pseudalcaliphilus 8SB was isolated and sequenced. An open reading frame (ORF) of 2112 bp encoding a polypeptide of 704 amino acids, composed of a 29-amino acid signal sequence and a 675-amino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50fb942b9628b3c948f216339e62b997
https://doi.org/10.1016/j.procbio.2012.08.001
https://doi.org/10.1016/j.procbio.2012.08.001
Publikováno v:
Process Biochemistry. 46:116-122
A new cyclodextrin glucanotransferase (CGTase, EC 2.4.1.19) from the obligated alkaliphile Bacillus pseudalcaliphilus 20RF, isolated from Bulgarian soils, was purified up to 18-fold by ultrafiltration and starch adsorption with a recovery of 63% acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b68acb5f5990de284a2d8b2e476370f
https://doi.org/10.1016/j.procbio.2010.07.027
https://doi.org/10.1016/j.procbio.2010.07.027
Publikováno v:
Biochemical Engineering Journal. 46:278-285
Cells of obligated alkaliphiles Bacillus pseudalcaliphilus 20RF and Bacillus pseudalcaliphilus 8SB isolated from Bulgarian habitats, producers of cyclodextrin glucanotransferase (CGTase, EC 2.4.1.19), were immobilized by three different techniques: o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7883492e1b2b7c0165beac597b4c6925
https://doi.org/10.1016/j.bej.2009.05.020
https://doi.org/10.1016/j.bej.2009.05.020
Publikováno v:
Process Biochemistry. 42:1454-1459
Cells of the alkalotolerant producer of cyclodextrin glucanotransferase (CGTase) Bacillus circulans ATCC 21783 were used as a model for preparing of magnetic biocatalysts applied for CGTase synthesis in batch and semicontinuous processes. The cell im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0044b3500ee899fa1ce75f1ff5ac9c6a
https://doi.org/10.1016/j.procbio.2007.06.009
https://doi.org/10.1016/j.procbio.2007.06.009
Publikováno v:
Process Biochemistry. 40:3290-3295
Four systems for a continuous cyclodextrin glucanotransferase (CGTase) production by Bacillus circulans ATCC 21783 were studied: free cells in a stirred reactor; free cells in a bubble column reactor; agar-entrapped and membrane-immobilized cells in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d8ca7f24e44880af6e856868febff5f
https://doi.org/10.1016/j.procbio.2005.03.022
https://doi.org/10.1016/j.procbio.2005.03.022
Autor:
D. Spasova, Anna Vassileva, Alexandra Tonkova, Nigar Burhan, Spasimira Radoevska, Viara Ivanova, Venko Beschkov
Publikováno v:
Process Biochemistry. 38:1585-1591
Cyclodextrins (CDs) are produced industrially from starch using bacterial cyclodextrin glucanotransferases (CGTase, EC 2.4.1.19). Batch cultivation of alkalophilic Bacillus circulans ATCC 21783 for CGTase synthesis was performed in a fluidized bed re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03381615167e52f6ea7f761807d4fa60
https://doi.org/10.1016/s0032-9592(03)00060-8
https://doi.org/10.1016/s0032-9592(03)00060-8
Publikováno v:
Process Biochemistry. 37:863-868
Growing cells of thermophilic Bacillus sp. 11, producer of a thermostable exo-inulinase, were immobilized on formaldehyde-activated polysulphone membranes. The biocatalysts obtained showed 1.5–2 fold higher enzyme yields (inulinase and invertase ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1317ea4b09aa2e5cb0d649f59c65decb
https://doi.org/10.1016/s0032-9592(01)00283-7
https://doi.org/10.1016/s0032-9592(01)00283-7
Autor:
D. Spasova, Rositza Mandeva, Kristina Uzunova, Margarita Kambourova, Viara Ivanova, Anna Derekova, Anna Vassileva, Alexandra Tonkova
Publikováno v:
Zeitschrift für Naturforschung C. 56:1022-1028
Inulinase and Invertase Activities, Thermophilic Bacilli, Enzyme Thermostability Enzyme production of newly isolated thermophilic inulin-degrading Bacillus sp. 11 strain was studied by batch cultivation in a fermentor. The achieved inulinase and inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f177aee247d835ab1e6d5ccec3b1371
https://doi.org/10.1515/znc-2001-11-1220
https://doi.org/10.1515/znc-2001-11-1220
Publikováno v:
Microbiological Research. 153:157-162
A considerable increase (up to 35%) of thermostable a-amylase yield was achieved by Bacillus licheniformis cells, immobilized on polymers containing cyclic carbonate groups in comparison to the synthesis by free cells. The increase of enzyme producti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::519fab5abc119c827f60e88fd2c3471f
https://doi.org/10.1016/s0944-5013(98)80035-9
https://doi.org/10.1016/s0944-5013(98)80035-9
Autor:
Alexandra Tonkova
Publikováno v:
Enzyme and Microbial Technology. 22:678-686
Cyclodextrin glucanotransferase (CGTase, EC 2.4.1.19) is an enzyme which catalyzes intramolecular (cyclizing) and intermolecular (coupling, disproportionation) transglycosylation as well as having a hydrolytic action on starch and cyclodextrins. By a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d595df84d49326ad3f45c28e79965639
https://doi.org/10.1016/s0141-0229(97)00263-9
https://doi.org/10.1016/s0141-0229(97)00263-9