SOLID-STATE BIOSURFACTANT PRODUCTION BY Aspergillus fumigatus USING AGRICULTURAL RESIDUES AS SUBSTRATE

被引：15
|
作者：
Castiglioni, Gabriel Luis [1 ]
Bertolin, Telma Elita [1 ]
Vieira Costa, Jorge Alberto [1 ]
机构：
[1] Univ Fed Rio Grande, Escola Quim & Alimentos, BR-96201900 Rio Grande, RS, Brazil
来源：
QUIMICA NOVA | 2009年 / 32卷 / 02期
关键词：
filamentous fungi; biosurfactant; solid-state fermentation; BACILLUS-SUBTILIS; MICROORGANISMS; FERMENTATION; OPTIMIZATION; BIOREACTOR; ENZYMES;
D O I：
10.1590/S0100-40422009000200005
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The objective of this study was to investigate biosurfactant production in solid state by Aspergillus fumigatus in fixed-bed column bioreactors using substrate based on agricultural residues. Without a supplementary carbon source the highest emulsifying activity (EA) was 11.17 emulsifying units (EU) g(-1) of substrate at an aeration rate of 148 mL h(-1)g(-1) but in the presence of diesel oil the highest EA value was 9.99 EU g(-1) at an aeration rate of 119 mL h(-1)g(-1) of substrate while supplementation with soya oil resulted in only 8.47 EU g(-1) of substrate at an aeration rate of 119 mL h(-1)g(-1).
引用
收藏
页码：292 / 295
页数：4
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