Citric Acid Production from Date Syrup using Immobilized Cells of Aspergillus niger
نویسندگان
چکیده
منابع مشابه
Semicontinuous and continuous production of citric acid with immobilized cells of Aspergillus niger.
The citric acid excretion of Ca-alginate-immobilized cells of Aspergillus niger in batch culture decreased with a half-time of approximately 19 days. Reactivation of the biocatalysts by regeneration in growth medium was possible, but it was followed by a submerged sporulation of the fungus, and medium was highly contaminated with free cells. Citric acid production could better be prolonged by s...
متن کاملCitric Acid Production by Aspergillus Niger*
the Stokes' equation (4). The anomalous appearance of the curves might suggest that a non-random sample had been selected, but examination of the frequencies of cells appearing in different size ranges reveals a normal distribution indicating that a random sample had been selected. The diameters of cells and the correspondent frequencies are: 3.5-2; 4.0-7; 4.5-10; 5.0-20; 5.5-17; 6.0-8; 6.5-2; ...
متن کاملProduction of citric acid by mutants of Aspergillus niger.
Development of methodology for the recovery of citric acid from the fermented broth involves standardization of the various parameters to achieve maximum performance in terms of recovery and optimum conditions. The present investigation was carried out to study the purification of citric acid from fermented broth by calcium carbonate precipitation and subsequent acid hydrolysis. The parameters ...
متن کاملProcess Optimization of Citric Acid Production from Aspergillus Niger Using Fuzzy Logic Design
The inherent non-linearity of citric acid fermentation from Aspergillus niger renders its control difficult, so there is a need to fine-tune the bioreactor performance for maximum production of citric acid in batch culture. For this, fuzzy logic is becoming a popular tool to handle non-linearity of a batch process. The present manuscript deals with fuzzy logic control of citric acid accretion b...
متن کاملOptimization of Process Variables of Citric Acid Production Using Aspergillus Niger In A Batch Fermentor
sucrose concentration of 60 g/l. Lower amounts of citric acids were found to be produced with other speeds (250-310 rpm).The oxygen flow rate of 1.0 lpm was observed to he most favorable flow rate giving maximum amount of Citric acid (26.6 g/l) with initial sucrose concentration of (60 g/l).. Lower Citric acids were found to be produced with other flow rates (1.5-2.5 lpm).
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ژورنال
عنوان ژورنال: Biotechnology(Faisalabad)
سال: 2006
ISSN: 1682-296X
DOI: 10.3923/biotech.2006.461.465