Enhanced itaconic acid production in Aspergillus niger using genetic modification and medium optimization
نویسندگان
چکیده
منابع مشابه
Enhanced itaconic acid production in Aspergillus niger using genetic modification and medium optimization
BACKGROUND Aspergillus niger was selected as a host for producing itaconic acid due to its versatile and tolerant character in various growth environments, and its extremely high capacity of accumulating the precursor of itaconic acid: citric acid. Expressing the CAD gene from Aspergillus terreus opened the metabolic pathway towards itaconic acid in A. niger. In order to increase the production...
متن کاملRewiring a secondary metabolite pathway towards itaconic acid production in Aspergillus niger
BACKGROUND The industrially relevant filamentous fungus Aspergillus niger is widely used in industry for its secretion capabilities of enzymes and organic acids. Biotechnologically produced organic acids promise to be an attractive alternative for the chemical industry to replace petrochemicals. Itaconic acid (IA) has been identified as one of the top twelve building block chemicals which have ...
متن کاملExpression of the Aspergillus terreus itaconic acid biosynthesis cluster in Aspergillus niger
BACKGROUND Aspergillus terreus is a natural producer of itaconic acid and is currently used to produce itaconic acid on an industrial scale. The metabolic process for itaconic acid biosynthesis is very similar to the production of citric acid in Aspergillus niger. However, a key enzyme in A. niger, cis-aconitate decarboxylase, is missing. The introduction of the A. terreus cadA gene in A. niger...
متن کاملRelationship between morphology and itaconic acid production by Aspergillus terreus.
The morphology of filamentous fungi closely correlates with the productivity in submerged culture. Using itaconic acid (IA) production by Aspergillus terreus as a research model, the quantitative relationship between the growth form of A. terreus and IA production was investigated. IA fermentation was scaled up from shake flasks to a 7 L stirred tank bioreactor based on the quantitative relatio...
متن کاملOptimization of Fermentation Medium for Extracellular Lipase Production from Aspergillus niger Using Response Surface Methodology
Lipase produced by Aspergillus niger is widely used in various industries. In this study, extracellular lipase production from an industrial producing strain of A. niger was improved by medium optimization. The secondary carbon source, nitrogen source, and lipid were found to be the three most influential factors for lipase production by single-factor experiments. According to the statistical a...
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ژورنال
عنوان ژورنال: BMC Biotechnology
سال: 2012
ISSN: 1472-6750
DOI: 10.1186/1472-6750-12-57