Gracie squeezed some grapes and kept the juice in a vessel for 5 days at room temperature. On the fifth day she found that the juice tasted sour and appeared frothy.
What caused this change?

lactic acid fermentation of the grape juice by anaerobic bacteria

alcohol fermentation of the grape juice by anaerobic bacteria

alcoholic fermentation of the grape juice by aerobic bacteria

Question

Gracie squeezed some grapes and kept the juice in a vessel for 5 days at room temperature. On the fifth day she found that the juice tasted sour and appeared frothy.
What caused this change?




lactic acid fermentation of the grape juice by anaerobic bacteria




alcohol fermentation of the grape juice by anaerobic bacteria




alcoholic fermentation of the grape juice by aerobic bacteria

anonymous · Answer

The first is the right answer sutera :) And don't waste time typing "You're Welcome :)"

anonymous · Answer

You're wrong @swiftygirl