Final answer:
Yes, it is possible to ferment sugar using sourdough. Sourdough, which contains yeast and bacteria, can convert sugar into alcohol and carbon dioxide.
Step-by-step explanation:
Yes, it is possible to ferment sugar using sourdough. Sourdough is a culture of yeast and bacteria that contains anaerobic bacteria, such as Lactobacillus, which produces lactic acid, and yeasts that produce alcohol and carbon dioxide.
The carbon dioxide acts as a leavening agent, causing the dough to rise, while the lactic acid gives sourdough its distinctive flavor. So, when you use sourdough to ferment sugar, the yeasts in the sourdough will convert the sugar into alcohol and carbon dioxide, similar to what happens when sugar is fermented with regular yeast.