Question

Assume you are working for a chemical company and are responsible for growing a yeast culture that produces ethanol. the yeasts are growing well on the maltose medium but are not producing alcohol. what is the most likely explanation? assume you are working for a chemical company and are responsible for growing a yeast culture that produces ethanol. the yeasts are growing well on the maltose medium but are not producing alcohol. what is the most likely explanation? the temperature is too high. not enough protein is provided. the temperature is too low. o2 is in the medium. the maltose is toxic.

Answer 1

I believe is answer is the temperature is too low. If the main fermentation products will be always ethanol in the yeasts chosen for alcoholic fermentation, since the yeasts are growing well on the maltose, the temperature may be too low which causes poor extraction of color and tannins in red wines and can also cause sluggish fermentations and production of high levels of ethyl acetate.