Studies on Optimization Process Parameters for Production of Alkaline Protease by Using Isolated Strain of Alternaria alternata TUSGF1

Studies on Optimization Process Parameters for Production of Alkaline Protease by Using Isolated Strain of Alternaria alternata TUSGF1

Aim: The current study aimed at studying the optimum fermentation conditions and nutritional
conditions for alkaline protease production by submerge fermentation using Alternaria alternata
TUSGF1, isolated from poultry farm soil.
Study Design: The results of environmental and nutritional parameters for protease production by
OVAT method was analyzed by origin 6.1 software.
Place and Duration of Study: Department of Food technology and Biochemical Engineering,
Jadavpur University, Kolkata, West Bengal, India between March 2017 and May 2017.
Methodology: A protease producing microorganism was isolated from a poultry farm soil and
identified as Alternaria alternata TUSGF1. Various environmental and nutritional process parameters
such as volume of medium, fermentation time, temperature, age of inoculums, agitation and carbon
sources and nitrogen sources were standardized for the maximum yield of alkaline protease.
Results: The optimum conditions of protease activity was 30°C at volume of medium 60 ml with 7
days age of inoculum in the medium containing 168 h of incubation and 120 rpm agitation rate.
Peptone, casien, skimmed milk, urea and yeast extract were good nitrogen sources whilst maltose,
fructose, starch, and sucrose were appropriate for enzyme production by submerge fermentation.
Conclusion: Alkaline protease production by a newly isolated Alternaria alternata TUSGF1 from
poultry farm soil was studied in shake flask conditions by submerge fermentation. It was established
that the optimum protease production was recorded at 30°C, 60 ml volume of medium leaves and
incubation time of 168 h. The best carbon and nitrogen sources for protease production were fructose
and casein, respective

Author(s) Details

Tapasi Polley
Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata -700032, India.

Uma Ghosh
Department of Food Technology and Biochemical Engineering, Jadavpur University, Kolkata -700032, India.

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