Adding Desired Microorganism-- In this step we have added the desired microorganism into our sterilized In the microorganism is Saccharomyccs cerevisiae, commonly solution our process known as yeast. The of this is made at the lab of Centre for Advances Researches in Science(CARS), University of Dhaka. Yeast can be grown in either liquid medium or on the surface of a solid agar plate. Yeast cells will grow on a minimal medium containing dextrose as a carbon source and salts that supply nitrogen, phosphorus, and trace metals. Yeast cells grow much more rapidly in the presence of rich medium that contains reagents such as yeast extract and bactopeptone.
Yeast strains can be stored at -70 C in 15% glycerol and are viable for morethan 3 yr. altematively, they can be stored at 4°C on slants of rich medium for6 month to 1 yr. According to the information of CARS for our process the yeast medium is developed with the simple general condition. After adding with the solution a fermentation time is required for the ethanol production. In our study we have made three samples by varying the fermentation time as 3 days, 5 days and 7 days,
Adding Desired Microorganism-- In this step we have added the desired microorganism into our sterilized In the microorganism is Saccharomyccs cerevisiae, commonly solution our process known as yeast. The of this is made at the lab of Centre for Advances Researches in Science(CARS), University of Dhaka. Yeast can be grown in either liquid medium or on the surface of a solid agar plate. Yeast cells will grow on a minimal medium containing dextrose as a carbon source and salts that supply nitrogen, phosphorus, and trace metals. Yeast cells grow much more rapidly in the presence of rich medium that contains reagents such as yeast extract and bactopeptone. Yeast strains can be stored at -70 C in 15% glycerol and are viable for morethan 3 yr. altematively, they can be stored at 4°C on slants of rich medium for6 month to 1 yr. According to the information of CARS for our process the yeast medium is developed with the simple general condition. After adding with the solution a fermentation time is required for the ethanol production. In our study we have made three samples by varying the fermentation time as 3 days, 5 days and 7 days,
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