Another study demonstrates how racemic nicotine (mixture of S and R-enantiomers 1 in scheme 3) can be deracemized in a one-pot procedure involving a monoamine oxidase isolated from Aspergillus niger which is able to oxidize only the amine S-enantiomer to the imine 2 and involving an ammonia–borane reducing couple which can reduce the imine 2 back to the amine 1.
Later they proceeded by selecting the Aspergillus niger fungus after which they achieved a productivity which allowed for industrial exploitation.
Ram gene is a rare gene, it is found in very few microorganisms like some Bacillus species and mainly naringin is hydrolysed by the Aspergillus niger, but production of naringinase from the fungus is a difficult task as the growing rate is much slower for fungi than the bacteria.
Niger | Aspergillus | Niger River | Niger Delta | Royal Niger Company | Maradi, Niger | Aspergillus flavus | Niger uranium forgeries | Aspergillus niger | Order of the Niger | Niger–Congo languages | Inner Niger Delta | Aspergillus fumigatus | Dosso, Niger | Pescennius Niger | Movement for the Emancipation of the Niger Delta | Kouré, Niger | Gaya, Niger | Aspergillus versicolor | Aspergillus terreus | Aspergillus parasiticus | Aspergillus ochraceus | Akokan, Niger | Tamaya, Niger | Tachypodoiulus niger | Sol Niger Within | Say, Niger | Regions of Niger | Ralph Niger | Niger Vallis |
He was mainly interested in two cyclodes: the cyclode leading to the fungus Mucor racemosus and the cyclode leading to the fungus Aspergillus niger.
Gluconic acid is found naturally, and is industrially manufactured by the fermentation of glucose, typically by Aspergillus niger, but also by other fungi, e.g. Penicillium, or by bacteria, e.g. Acetobacter, Pseudomonas and Gluconobacter.