Increased citric acid production by mutants ofAspergillus nigerwith increased glycolytic capacity

Production 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 ...

Citric acid production.

Citric acid is a commodity chemical produced and consumed throughout The World. It is used mainly in the food and beverage industry, primarily as an acidulant. Although it is one of the oldest industrial fermentations, its World production is still in rapid increasing. Global production of citric acid in 2007 was over 1.6 million tones. Biochemistry of citric acid fermentation, various microbia...

The case for increased animal production in iran to improve human diets and increased rural emoloyment

Citric 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; ...

Nitric Oxide Increased the Rosmarinic Acid and Essential Oil Production in In vitro-cultured Melissa officinalis

Background: Nitric oxide is a free radical that recently has emerged as a key signaling molecule in regulating important physiological processes in plants. Objective: In this work, sodium nitroprusside (SNP) was utilized as the donor of nitric oxide to investigate the effects of exogenous nitric oxide on essential oil, rosmarinic acid and antioxidant activity of in vitro-cultured Melissa offi...