Enzymatic interesterification of crambe oil assisted by ultrasound

被引：30

作者：

Tavares, Gilmar Roberto ^{[1
]}

Goncalves, Jose Eduardo ^{[2
,3
]}

dos Santos, Wanderley Dantas ^{[4
]}

da Silva, Camila ^{[5
]}

机构：

[1] UEM, Dept Ciencias Agron, Estr Paca S-N, BR-87500000 Umuarama, PR, Brazil

[2] Ctr Univ Maringa, Programa Mestrado Tecnol Limpas, Av Guedner 1610, BR-87050900 Maringa, PR, Brazil

[3] Ctr Univ Maringa, Programa Mestrado Promocao Saude, Av Guedner 1610, BR-87050900 Maringa, PR, Brazil

[4] Univ Estadual Maringa, Dept Bioquim, Ave Colombo 5790, BR-87020900 Maringa, PR, Brazil

[5] UEM, Dept Tecnol, Ave Angelo Moreira Fonseca 180, BR-87506370 Umuarama, PR, Brazil

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2017年 / 97卷

关键词：

Methyl acetate; Biodiesel; Crambe abyssinica H; BIODIESEL PRODUCTION; SOYBEAN OIL; METHYL ACETATE; CHEMICAL INTERESTERIFICATION; GLYCEROL CARBONATE; SUNFLOWER OIL; BY-PRODUCT; TRIACETIN; KINETICS; TRANSESTERIFICATION;

D O I：

10.1016/j.indcrop.2016.12.022

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this work, the production of fatty acid methyl esters (FAME) from crambe oil by enzyme interesterification assisted by ultrasound was investigated. The experiments evaluated the effect of temperature, reaction time, methyl acetate (MA)/oil molar ratio, enzyme loading, catalyst reuse and influence of ultrasound. The best results were obtained at 60 degrees C, temperature at which the reaction reached equilibrium in 6 h. FAME yield was maximal at MA/oil molar ratio of 12 and the enzyme loading of 20 wt% (relative to oil mass) gave the best yields. The use of methyl acetate promoted the enzyme stability throughout successive cycles, with a decrease of only 10% and 8% in FAME yield and enzymatic activity. The results allow us to conclude that ultrasound reduced total reaction time and percentage of enzyme loading, when compared to the process without ultrasound. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：218 / 223

页数：6

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