CONTINUOUS PRODUCTION OF CITRIC-ACID FROM SUGARCANE MOLASSES USING A COMBINATION OF SUBMERGED IMMOBILIZED AND SURFACE-STABILIZED CULTURES OF ASPERGILLUS-NIGER-KCU-520

被引：16

作者：

GUPTA, S ^{[1
]}

SHARMA, CB ^{[1
]}

机构：

[1] UNIV ROORKEE,DEPT BIOSCI & BIOTECHNOL,ROORKEE 247667,UTTAR PRADESH,INDIA

来源：

BIOTECHNOLOGY LETTERS | 1994年 / 16卷 / 06期

关键词：

D O I：

10.1007/BF00128607

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：

A high performance fermentation process for the continuous production of citric acid from sugarcane molasses by using the combination of submerged calcium alginate-immobilized and surface-stabilized cultures of Aspergillus niger KCU 520 in a continuous flow horizontal bioreactor is described. The citric acid productivity was dependent on the dilution rate with an optimum value of 0.015/h. Presaturation of fermentation medium with sterile air, in addition to surface aeration, before feeding into the bioreactor enhanced the citric acid productivity. The highest productivity, citric acid product concentration and yield obtained were 1.7 kg M(-3)h(-1), 110kg M(-3) and 91% respectively. The cultures were continuously used for 30 days without any apparent loss in citric acid productivity.

引用

页码：599 / 604

页数：6

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