Thermal Effect on the Microwave Assisted Biodiesel Synthesis Catalyzed by Lipases

被引：16

作者：

Costa, Ingrid C. R. ^{[1
,2
]}

Leite, Selma G. F. ^{[1
]}

Leal, Ivana C. R. ^{[3
]}

Miranda, Leandro S. M. ^{[2
]}

de Souza, Rodrigo O. M. A. ^{[2
]}

机构：

[1] Univ Fed Rio de Janeiro, Escola Quim, BR-21941909 Rio De Janeiro, Brazil

[2] Univ Fed Rio de Janeiro, Inst Quim, Lab Biocatalise & Sintese Organ, BR-21941909 Rio De Janeiro, Brazil

[3] Univ Fed Rio de Janeiro, Fac Farm, BR-22941909 Rio De Janeiro, Brazil

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2011年 / 22卷 / 10期

关键词：

microwave irradiation; lipases; thermal effect; ethyl oleate; nonthermal effects; KINETIC RESOLUTION; METHYL-ESTER; EMISSIONS; BLENDS; FUEL;

D O I：

10.1590/S0103-50532011001000022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The esterification reaction mediated by lipases was investigated applying both microwave irradiation and conventional heating in order to evaluate the existence of nonthermal microwave effects on the biodiesel synthesis. All transformations were conducted at 40 degrees C in both Monowave 300 and CEM Discover instruments that allowed accurate internal reaction temperature measurements with use of fiber-optic probes. The conventional heating experiment was performed in an EasyMax (TM) reactor (Mettler-Toledo), which also allowed accurate measurement of the internal temperature. The results revealed no difference on the reaction time or yield, differently than indicated by some results in the literature.

引用

页码：1993 / 1998

页数：6

共 24 条

[1]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[2] Novozym 435 displays very different selectivity compared to lipase from Candida antarctica B adsorbed on other hydrophobic supports [J].

Cabrera, Zaida ;

Fernandez-Lorente, Gloria ;

Fernandez-Lafuente, Roberto ;

Palomo, Jose M. ;

Guisan, Jose M. .

JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, 2009, 57 (1-4) :171-176

[3] Kinetic Resolution of rac-1-Phenylethanol with Immobilized Lipases: A Critical Comparison of Microwave and Conventional Heating Protocols [J].

de Souza, Rodrigo Octavio M. A. ;

Antunes, Octavio A. C. ;

Kroutil, Wolfgang ;

Kappe, C. Oliver .

JOURNAL OF ORGANIC CHEMISTRY, 2009, 74 (16) :6157-6162

[4]

*EUR COMM STAND, 2001, 14105 EN EUR COMM ST

[5] Application of lipases in kinetic resolution of racemates [J].

Ghanem, A ;

Aboul-Enein, HY .

CHIRALITY, 2005, 17 (01) :1-15

[6] Trends in lipase-catalyzed asymmetric access to enantiomerically pure/enriched compounds [J].

Ghanem, Ashraf .

TETRAHEDRON, 2007, 63 (08) :1721-1754

[7]

Gotor-Fernandez V., 2007, BIOCATALYSIS PHARM B, P203

[8] Industrial applications of microbial lipases [J].

Hasan, Fariha ;

Shah, Aamer Ali ;

Hameed, Abdul .

ENZYME AND MICROBIAL TECHNOLOGY, 2006, 39 (02) :235-251

[9]

HIDALGO A, 2007, BIOCATALYSIS PHARM B, P159

[10] Controlled microwave heating in modern organic synthesis: highlights from the 2004-2008 literature [J].

Kappe, C. Oliver ;

Dallinger, Doris .

MOLECULAR DIVERSITY, 2009, 13 (02) :71-193

← 1 2 3 →