Enhancement of citric acid production with ram horn hydrolysate by Aspergillus niger

被引：22

作者：

Kurbanoglu, EB ^{[1
]}

机构：

[1] Ataturk Univ, Dept Biol, Sci & Letters Fac, TR-25240 Erzurum, Turkey

来源：

BIORESOURCE TECHNOLOGY | 2004年 / 92卷 / 01期

关键词：

Aspergillus niger; citric acid; submerged fermentation; ram horn; agricultural waste;

D O I：

10.1016/j.biortech.2003.08.002

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The potential use of ram horn hydrolysate (RHH) as a supplement for improvement of citric acid production by Aspergillus niger NRRL 330 was studied. For this purpose, first RHH was produced. Ram horns were hydrolyzed by treating with acid (6 N-H2SO4) and the RHH was obtained. With the addition of RHH to the fermentation medium with a final concentration of 4% (optimal concentration), citric acid value reached a maximum value (94 g/l), which is 52% higher than that of the control experiment. The addition of 4% (v/v) RHH enhanced citric acid accumulation, reduced residual sugar concentration and stimulated mycelial growth. Adding 4% RHH had no adverse effects on A. niger. As a result, RHH was found to be suitable as a valuable supplement for citric acid production in the submerged fermentation. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：97 / 101

页数：5

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