Solid-state fermentation for the synthesis of citric acid by Aspergillus niger

被引:114
|
作者
Vandenberghe, LPS
Soccol, CR [1 ]
Pandey, A
Lebeault, JM
机构
[1] Univ Fed Parana, Lab Proc Biotecnol, Dept Engn Quim, BR-81531970 Curitiba, Parana, Brazil
[2] Univ Technol Compiegne, Lab Procedes Biotechnol, F-60205 Compiegne, France
关键词
solid-state fermentation; citric acid; Aspergillus niger; cassava bagasse; sugarcane bagasse; coffee husk;
D O I
10.1016/S0960-8524(99)00107-8
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Solid-state fermentation was carried out to evaluate three different agro-industrial wastes, sugar cane bagasse, coffee husk and cassava bagasse for their efficiency in production of citric acid by a culture of Aspergillus niger. Cassava bagasse best supported the mould's growth, giving the highest yield of citric acid among the tested substrates. Results showed the fungal strain had good adaptation to the substrate (cassava bagasse) and increased the protein content (23 g/kg) in the fermented matter. Citric acid production reached a maximum (88-g/kg dry matter) when fermentation was carried out with cassava bagasse having initial moisture of 62% at 26 degrees C for 120 h. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:175 / 178
页数:4
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