Question

Please answer the following question, and explain how you arrived to the answer.

If you feed one anaerobic colony of yeast with glucose and one with fructose-1,6-bisphosphate which colony will need more food and Why?

Answer 1

Most fruits contain sugars (fructose) that will ferment when combined with wild or airborne yeasts and bacteria. That is both good and bad news. Sugar is good, just we can't be sure what wild or airborne yeasts and bacteria may be present. There is also sugars in certain herbs such as ginger and ginseng and in berries like wolfberries and Da Zao (dates).

Technically in a ferment cycle there are two types of activities going on; one is fermentation (anaerobic - without oxygen) and the other respiration (aerobic - with oxygen). However in Kefir and Kombucha Tea Brewing (achieved aerobically - with oxygen) common usage refers to this process as fermentation.

Water should be of the highest quality and free from contaminants like chlorine. The amount of oxygen and carbon dioxide present in the water will also be a determining factor in this process.

Yeast either via acid hydrolysis or by producing enzymes cleaves sugar into glucose and fructose. Glucose is the energy source of our biological cells, and the energy source of our Probiotics. The glucose portion is what we are interested in. The synergy of the yeasts cleaving the sugar and the bacteria producing acids results in the common denominator that defines Kombucha Tea as Kombucha Tea (and not something else) as acetic acid, gluconic acid and fructose. The major variables; Sugar, Tea, Temperature, Time and Oxygen. all further refine and define your ferment.