-
Je něco špatně v tomto záznamu ?
Kinetics of glycerol biotransformation to dihydroxyacetone by immobilized gluconobacter oxydans and effect of reaction conditions
Jiří Raška, František Skopal, Karel Komers, Jaroslav Machek
Jazyk angličtina Země Česko
NLK
ProQuest Central
od 2005-01-01 do 2011
- MeSH
- aceton analýza chemie MeSH
- biotechnologie MeSH
- biotransformace MeSH
- Gluconobacter oxydans metabolismus MeSH
Biotransformation of glycerol to 1,3-dihydroxyacetone was carried out in an isothermal isochoric batch reactor with Gluconobacter oxydans immobilized in poly(vinyl alcohol) gel capsules. The reaction course was described with a three-step kinetic model. Two reaction schemes were proposed and compared with 8 kinetic experiments at 25 °C. The experimental dependences of glycerol and dihydroxyacetone concentrations on reaction time were simulated very well by the autocatalytic model. The effects of reaction temperature and initial concentrations of yeast extract and glycerol were studied. Temperature 25-30 °C, initial yeast extract concentration 2-4 g l-1 and initial glycerol concentration 20-50 g l-1 were found as optimal. The determined rate constants can be used to advantage for industrial production of dihydroxyacetone from glycerol.
Grant č. 21627502 MSMOO
Bibliografie atd.Lit.: 15
- 000
- 02427naa 2200373 a 4500
- 001
- bmc07501815
- 003
- CZ-PrNML
- 005
- 20111210121245.0
- 008
- 080122s2007 xr e eng||
- 009
- AR
- 024 7_
- $2 doi $a 10.1135/cccc20071269
- 040 __
- $a ABA008 $b cze $c ABA008 $d ABA008 $e AACR2
- 041 0_
- $a eng
- 044 __
- $a xr
- 100 1_
- $a Raška, Jiří. $7 _BN002010
- 245 10
- $a Kinetics of glycerol biotransformation to dihydroxyacetone by immobilized gluconobacter oxydans and effect of reaction conditions / $c Jiří Raška, František Skopal, Karel Komers, Jaroslav Machek
- 314 __
- $a Department of Physical Chemistry, Faculty of Chemical Technology, University, Pardubice
- 500 __
- $a Grant č. 21627502 MSMOO
- 504 __
- $a Lit.: 15
- 520 9_
- $a Biotransformation of glycerol to 1,3-dihydroxyacetone was carried out in an isothermal isochoric batch reactor with Gluconobacter oxydans immobilized in poly(vinyl alcohol) gel capsules. The reaction course was described with a three-step kinetic model. Two reaction schemes were proposed and compared with 8 kinetic experiments at 25 °C. The experimental dependences of glycerol and dihydroxyacetone concentrations on reaction time were simulated very well by the autocatalytic model. The effects of reaction temperature and initial concentrations of yeast extract and glycerol were studied. Temperature 25-30 °C, initial yeast extract concentration 2-4 g l-1 and initial glycerol concentration 20-50 g l-1 were found as optimal. The determined rate constants can be used to advantage for industrial production of dihydroxyacetone from glycerol.
- 650 _2
- $a biotransformace $7 D001711
- 650 _2
- $a aceton $x analýza $x chemie $7 D000096
- 650 _2
- $a Gluconobacter oxydans $x metabolismus $7 D020600
- 650 _2
- $a biotechnologie $7 D001709
- 700 1_
- $a Skopal, František, $d 1943-
- 700 1_
- $a Komers, Karel, $d 1932- $7 jn20000401401
- 700 1_
- $a Machek, Jaroslav, $d 1939-
- 773 0_
- $w MED00010973 $t Collection of Czechoslovak chemical communications $g Roč. 72, č. 9 (2007), s. 1269-1283 $x 0010-0765
- 910 __
- $a ABA008 $b A 1006 $c 394 $y 1
- 990 __
- $a 20080122101112 $b ABA008
- 991 __
- $a 20080123083452 $b ABA008
- 999 __
- $a ok $b bmc $g 617424 $s 469856
- BAS __
- $a 3
- BMC __
- $a 2007 $b 72 $c 9 $d 1269-1283 $i 0010-0765 $m Collection of Czechoslovak Chemical Communications $x MED00010973
- LZP __
- $a 2007-18/mkmv
