Various industrial essential metabolites ,such as organic acids,antibiotics and enzyme, are produced by filamentous fungi .The morphology of these micro-organism in submereged culture varies between the pelleted and the unrestricted filamentous form, depending on the strain and the culture conditions (Braun et al., 1991).The fungal morphology for these fermentation is of great importance since it affects the rheaological properties of the fermentation broth and consequently its mass, heat and transfer characteristics . The morphology of filamentous ,micro-organisms during upon the culture condition and strain genotype (papagianni et al.,1998) .All growth forms have their own characteristics regarding growth kinsetics nutrient consumption
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In addition to producing extracellular enzymes and citric acid, A. niger is used for waste management and biotransformations. Aspergillus is a group of molds, of which about 200 species have been identified. Aspergillus molds are found throughout the world and are the most common type of fungi in the environment.The fungi is most commonly found in mesophilic environments such as decaying vegetation or soil and plants. of A. niger is important because of its involvement in producing citric acid as well as industrial enzymes, such as amylases, proteases, and …show more content…
Aspergillusniger can even grow in environments with very little nutrients available.Aspergillus molds thrives best in oxygen-rich environments. Aspergillus molds also grows well on materials rich in carbon which they feeds off for nutrients.Aspergillusniger or A. niger causes a disease called black mould on certain fruits and vegetables such as grapes, apricots, onions, and peanuts, and is a common contaminant of food. It is ubiquitous in soil and is commonly reported from indoor environments, where its black colonies can be confused with those of Stachybotrys (species of which have also been called "black mould"),Aspergillusniger is black on the surface and white or yellow underneath. Samson RA, Houbraken J, Summerbell RC, Flannigan B, Miller JD (2001). "Common and important species of fungi and actinomycetes in indoor environments". Microogranisms in Home and Indoor Work Environments.CRC. pp.
In addition to producing extracellular enzymes and citric acid, A. niger is used for waste management and biotransformations. Aspergillus is a group of molds, of which about 200 species have been identified. Aspergillus molds are found throughout the world and are the most common type of fungi in the environment.The fungi is most commonly found in mesophilic environments such as decaying vegetation or soil and plants. of A. niger is important because of its involvement in producing citric acid as well as industrial enzymes, such as amylases, proteases, and …show more content…
Aspergillusniger can even grow in environments with very little nutrients available.Aspergillus molds thrives best in oxygen-rich environments. Aspergillus molds also grows well on materials rich in carbon which they feeds off for nutrients.Aspergillusniger or A. niger causes a disease called black mould on certain fruits and vegetables such as grapes, apricots, onions, and peanuts, and is a common contaminant of food. It is ubiquitous in soil and is commonly reported from indoor environments, where its black colonies can be confused with those of Stachybotrys (species of which have also been called "black mould"),Aspergillusniger is black on the surface and white or yellow underneath. Samson RA, Houbraken J, Summerbell RC, Flannigan B, Miller JD (2001). "Common and important species of fungi and actinomycetes in indoor environments". Microogranisms in Home and Indoor Work Environments.CRC. pp.