Biotechnological potential of agro-industrial residues. I: sugarcane bagasse

Fungal production of citric acid.

Solid-state fermentation for the synthesis of citric acid by Aspergillus niger

Value-addition of agricultural wastes for augmented cellulase and xylanase production through solid-state tray fermentation employing mixed-culture of fungi.

Publisher Summary The solid-state fermentation refers to any fermentation that takes place on solid or semisolid substrate or that occurs in a nutritionally inert solid support, which provides some advantage to the microorganism with respect to access to nutrients. In a solid-state fermentation, several factors must be taken into consideration to achieve high efficiency of the overall process. Some of the general characteristics include: the solid substrate must be in a form to allow free circulation of air, usually the only other medium component required is water, and control of temperature is sometimes critical. Moisture content of the solid substrate is an important factor during microbial growth in a solid-state fermentation process. There are many advantages of the solid-state fermentation processes over the conventional stirred tank system on both laboratory and large scale. Some of the advantages for work involving fungi are—the medium is relatively simple, the conditions under which the fungus grows are more like the conditions in its natural habitat, and the desired product may be readily extracted from the vessel by addition of solvent directly.

Solid Substrate Fermentations

https://onlinelibrary.wiley.com/doi/pdf/10.1002/bit.260170216

K. Lakshminarayana

Papers

A solid state fermentation method for citric acid production using sugar cane bagasse

Citric Acid Production from Indian Cane Molasses by Aspergillus niger under Solid State Fermentation Conditions