Integrated process for production of surfactin - Part 2. Equilibrium and kinetic study of surfactin adsorption onto activated carbon

被引：16

作者：

Montastruc, Ludovic ^{[1
]}

Liu, Tao ^{[2
]}

Gancel, Frederique ^{[1
]}

Zhao, Ling ^{[2
]}

Nikov, Iordan ^{[1
]}

机构：

[1] USTL, Polytech Lille, Lab ProBioGem, EA 1026, Lille, France

[2] ECUST, State Key Lab Chem Engn, Shanghai, Peoples R China

来源：

BIOCHEMICAL ENGINEERING JOURNAL | 2008年 / 38卷 / 03期

关键词：

adsorption; surfactin; thermodynamics; kinetics;

D O I：

10.1016/j.bej.2007.07.023

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Previous work has presented kinetics of pure surfactin adsorption onto activated carbon. Being an efficient biosurfactant, the lipopeptide surfactin has been produced in a bioprocess supported by the strain Bacillus subtilis ATCC 21332. This work is aimed at studying surfactin recovery directly from the culture medium. A thermodynamic study is carried out. Referring to adsorption capacity, the thermodynamic study confirmed that the adsorption of pure surfactin is an exothermic process. The capacity of surfactin adsorption from culture media shows that the activated carbon could be used as efficient adsorbent for surfactin recovery in an integrated process. The study shows the importance of the temperature for process control. Aimed at fixed bed column design, surfactin adsorption modelling on a single microporous pellet is demonstrated. (C) 2007 Published by Elsevier B.V.

引用

页码：349 / 354

页数：6

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