Document Detail


Low-pressure lipase-catalyzed production of mono- and diglycerides with and without N-butane and AOT surfactant.
MedLine Citation:
PMID:  19641856     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this work is to report the production of mono- and diglycerides from olive oil at ambient condition and in pressurized n-butane as solvent medium. For this purpose, a commercial immobilized lipase (Novozym 435) was employed as catalyst and sodium (bis-2-ethyl-hexyl) sulfosuccinate (Aerosol-OT or AOT) as surfactant. The experiments were conducted in batch mode varying the temperature, pressure, and AOT concentration. Results showed that lipase-catalyzed glycerolysis either with compressed n-butane or in solvent-free system with AOT as surfactant might be a potential alternative route to conventional methods, as high contents of reaction products, especially monoglycerides ( approximately 60 wt.%), were achieved at mild temperature and pressure with a relatively low solvent to substrates mass ratio (4:1) in short reaction times (2 h).
Authors:
Alexsandra Val?rio; Karina G Fiametti; Suzimara Rovani; Helen Treichel; D?bora de Oliveira; J Vladimir Oliveira
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-12
Journal Detail:
Title:  Applied biochemistry and biotechnology     Volume:  160     ISSN:  1559-0291     ISO Abbreviation:  Appl. Biochem. Biotechnol.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-17     Completed Date:  2010-05-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8208561     Medline TA:  Appl Biochem Biotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1789-96     Citation Subset:  IM    
Affiliation:
Department of Food Engineering, URI-Campus de Erechim, Av. Sete de Setembro, 1621, Erechim, RS, 99700-000, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Biocatalysis / drug effects*
Butanes / pharmacology*
Diglycerides / chemical synthesis*
Dioctyl Sulfosuccinic Acid / pharmacology*
Lipase / metabolism*
Monoglycerides / chemical synthesis*
Pressure
Surface-Active Agents / pharmacology*
Temperature
Chemical
Reg. No./Substance:
0/Butanes; 0/Diglycerides; 0/Monoglycerides; 0/Surface-Active Agents; 10041-19-7/Dioctyl Sulfosuccinic Acid; 106-97-8/butane; EC 3.1.1.-/Novozyme 435; EC 3.1.1.3/Lipase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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