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Title:Enzymatic esterification of glycerol and stearic acid in non-conventional media
Authors:ID Csanádi, Zsófia (Author)
ID Bélafi-Bakó, Katalin (Author)
ID Szentgyörgyi, Eszter (Author)
ID Gubicza, László (Author)
ID Knez, Željko (Author)
ID Leitgeb, Maja (Author)
Files:.pdf Acta_Chimica_Slovenica_2010_Csanadi_et_al._Enzymatic_esterification_of_glycerol_and_stearic_acid_in_non-conventional_media.pdf (128,92 KB)
MD5: 0C211EE09C091C7E8C08B43085EF8843
 
URL http://acta-arhiv.chem-soc.si/57/57-1-244.pdf
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Ionic liquids as trihexyl-tetradecyl-phophonium-dicyanamide (Cyphos 105) and cocosalkyl-pentaethoxi-methyl-ammonium-methosulfate (Ammoeng 100) were applied for the esterification of stearic acid and glycerol using Candida antarctica lipase (Novozyme 435). When only ILs were applied as solvents at 1:15 initial substrate molar ratio the conversion was 76 and 78 % in the case of two kinds of ILs, respectively. Mixed the ILs and supercritical $CO_2$ the conversion reached 79 and 86 %. The conversion was found highest in supercritical $CO_2$, reached 90 %. Moreover formation of glycerol-di-stearate is much lower in the case of ILs comparing with $SCCO_2$.
Keywords:glycerol-mono-stearate, Lipase, ionic liquids, supercritical $CO_2$, carbon dioxide
Publication status:Published
Publication version:Version of Record
Year of publishing:2010
Number of pages:str. 244-249
Numbering:Letn. 57, št. 1
PID:20.500.12556/DKUM-52376 New window
ISSN:1318-0207
UDC:664.87.061-987
ISSN on article:1318-0207
COBISS.SI-ID:14029590 New window
NUK URN:URN:SI:UM:DK:OMECSKQR
Publication date in DKUM:10.07.2015
Views:1488
Downloads:193
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Acta Chimica Slovenica
Shortened title:Acta Chim. Slov.
Publisher:Slovensko kemijsko društvo
ISSN:1318-0207
COBISS.SI-ID:14086149 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:10.07.2015

Secondary language

Language:Slovenian
Abstract:Ionski tekočini (ILs) triheksil-tetradecil-fofonijev-dicianamid (Cyphos 105) in kokosalkil-pentaetoksi-metil-amonijev-metosulfat (Ammoeng 100) smo uporabili kot topili pri reakciji esterifikacije stearinske kisline in glicerola z lipazo iz Candida antarctice (Novozyme 435). Pri začetni množinski koncentraciji substrata 1:15 in v primeru, ko smo uporabili ILs kot samostojni topili, je bila dosežena presnova 76 in 78 %. Višjo, 90 % presnovo smo dosegli v superkritičnem $CO_2$. V primeru uporabe ILs je nastalo več glicerol distearata kot v primeru uporabe $ScCO_2$.
Keywords:glicerol-mono-stearat, lipaza, ionske tekočine, superkritični $CO_2$, ogljikov dioksid


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