The role of organic solvent amount in the lipase-catalyzed biodiesel production

Food Science and Technology (Campinas)

Clarissa Dalla Rosa²  Débora De Oliveira²  José Vladimir Oliveira¹ 

[1] ,Universidade Regional Interaga Departamento de Engenharia de Alimentos Erechim RS ,Brazil

关键词: biodiesel;    lipases;    organic solvent;    soybean oil;    biodiesel;    lipases;    solvente orgânico;    óleo de soja;   

DOI  :  10.1590/S0101-20612010005000008

来源: SciELO

【 摘 要 】

This research note addresses the role of organic solvent amount in the production of fatty acid ethyl esters from soybean oil. N-hexane was chosen as solvent and two commercial immobilized lipases as catalysts, Novozym 435 and Lipozyme IM. The reactions were conducted in 6 hours, varying the solvent to oil ratio from zero to 50 (v/wt) and adopting adopting for Novozym 435: 65 ºC, enzyme concentration (E, wt%) = 5, oil to ethanol molar ratio (R) = 1:10, water addition (H, wt%) = 0, and for Lipozyme IM: 35 ºC, E = 5 wt%, R = 1:3, H = 10 wt%. For Lipozyme IM, an increase in solvent amount is shown to lead to an enhancement of reaction conversion, while a negligible effect was found for Novozym 435. When using 30 mL of solvent the reaction conversions were 88% for Lipozyme IM and 15% for Novozym 435.

【 授权许可】

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