Microbial bioproduction of citric acid by Aspergillus clavatus R-36 exposed to sodium tetradecyl sulfate

The efficacy of sodium tetradecyl sulfate on microbial bioproduction of citric acid by Aspergillus parasiticus R-14, Aspergillus awamori R18, Aspergillus foetidus R-30, Aspergillus flavus R32, Aspergillus clavatus R-36 has been assessed. It has been observed that the fungal strain Aspergillus clavatus R-36 has been found most potential and effective for the citric acid fermentation process. It has been found that the micelles, i.e., sodium tetradecyl sulfate at molar concentration, i.e., 6.0 × 10-5M has stimulatory effect on production of citric acid by Aspergillus clavatus R-36 and enhances the yield of citric acid to an extent of 17.364% higher in comparison to control fermentor flasks, i.e., 7.216g/100 ml under the optimized conditions, viz. 330C temperature, 1.8 pH, 10 days of incubation period with 30% (w/v) molasses solution.