Microbial valorization of industrial waste biomass using mixed culture medium of microbes and its economic importance.

The main problem that the society is facing now-a-days is the tedious process which are involved in disposal and handling the huge quantities of food and paper waste generated in India. The waste is discarded or fired, in roads which cause air pollution, a harmful gas, land pollution, smoke, particulates and residue may enter in to a water resource. Since these pollute the environment, these wastes are utilized efficiently and converted in to a useful product which must be eco-friendly. This current research is to produce lactic acid (LA) using various type of wastes such as food and paper sludge. Since LA can be synthesized only by two methods; one is chemical synthesis where natural sources such as petroleum, coal and natural gas are mainly used as a substrate. Another one is microbial synthesis in which carbohydrates such as sugar or starch is converted in to an alcohol or an acid. Most probably, both bacterial and fungal species are used and about 70-80% uses fermentation for the manufacture of Lactic acid. The mixed culture medium of lactobacillus delbrueckii and streptococcus. Sp strain shows highly efficient utilization of substrate. Since Solid state fermentation (SSF) has a possible technology for the synthesis of products related to microbial. This process has minimum energy needs, generates less waste and is eco-friendly. Various parameters such as substrate concentration, temperature likewise other parameters which influence the yield will be varied. The product obtained will be estimated further using HPLC. Overall, the result indicates that bio-waste might be an appropriate substrate for the synthesis of lactic acid. [ABSTRACT FROM AUTHOR]