Glycerol Essay

In 1985-1990 we see that various scientists such as Kalle (1985), Vikar and Panesar (1987), and Hecker et al. (1990) had begun endeavors to develop more efficient alkali and sulfite processes. This was done by attempted by sparging with CO2 (the bubbling of inert gases in the liquid to remove dissolved gases) or installing a vacuum in the fermenter to control aeration. This method resulted in a 40% glycerol yield efficiency at concentrations of 230 g/L. (Kalle, 1985; Vikar and Panesar, 1987). A fed-batch and continuous version of this reactor was also used, however there were no significant changes in yield, and the cost to efficiency ratio did not make sense to continue the continuous system. The production of glycerol with S. cerevisiae is fairly tranquil, the problems carry a significant burden towards the usefulness of this system. The problems include low glycerol yields, due to the production of high concentration by-products (e.g. ethanol, acetic acid and acetaldehyde). This in fact causes high recovery prices since the required product is in such small …show more content…
The development of glycerol in China has significantly improved the overall state of glycerol production. China provides approximately 10,000 tons every year on a commercial basis for itself. Due to China’s large manufacturing industry, this only makes up about 12% of the total country’s needs. This large amount is a result of the vicarious isolation of yeast cells that have the ability to produce large amounts of glycerol through fermentation. In addition to this the recovery systems have vastly improved as well. The only way the yields of glycerol can be more efficient and acceptable for use in the industrial and commercial business is for biotechnologists to learn more about the process of glycerol metabolism in yeast cells and create newer strains through genetic engineering (Zhuge,