Showing papers on "2,3-Butanediol published in 1959"
TL;DR: Pichia indica produces 2,3 butanediol during fermentation and this glycol increases with the presence of Zn++ in the culture, and on increasing the period of fermentation the glycol disappears from the culture.
Abstract: Pichia indica produces 2,3 butanediol during fermentation. The formation of this glycol increases with the presence of Zn++ in the culture. The increase of Zn++ concentration increases the formation of 2,3 butanediol in the culture till a maximum is reached. Further increase of Zn++ concentration decreases the diol production. On increasing the period of fermentation the glycol disappears from the culture.
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TL;DR: It appears that 2.3 butanediol is formed from some intermediate material formed during the period of high sugar consumption, which is due to its formation from the intermediate compound.
Abstract: InB. polymyxa cultures containing sucrose as the substrate the amount of 2.3 butanediol decreases between 10 and 30 days of fermentation but after 30 days, the formation of the glycol increases. If iron or sulphite ions are present in the culture ofB. polymyxa the yield of 2.3 butanediol is small in the first 10 days, as compared to the control culture but it gradually increases with the increase of the period of fermentation. This increase was observed upto 50 days. In the culture containing paraformaldehyde 2.3 butanediol is not formed. The sugar consumption in the cultures is high only during the first ten days of fermentation and after that though there is enough sugar present, it is not utilised and the amount of 2.3 butanediol goes on increasing. It appears that 2.3 butanediol is formed from some intermediate material formed during the period of high sugar consumption. Later the increase of 2.3 butanediol is due to its formation from the intermediate compound.