The effect of levitated water on fermentation kinetics

Area of Science:

• Biochemistry
• Biophysics
• Microbiology

Background:

• Baker's yeast (Saccharomyces cerevisiae) is crucial for fermentation.
• Water properties can influence biological processes.
• Hydrodynamic processing, or "levitation," alters water structure.

Purpose of the Study:

• To investigate the effect of levitated water on anaerobic glucose fermentation kinetics in baker's yeast.
• To model fermentation processes, distinguishing nutrient transport, catabolic, and anabolic reactions.
• To determine how levitated water specifically impacts these kinetic parameters.

Main Methods:

• Development of a fermentation kinetics model incorporating nutrient transport, catabolic, and anabolic reactions.
• Comparative analysis of yeast fermentation rates using ordinary tap water versus levitated water.
• Quantitative measurement of changes in the glucose transport rate constant.

Main Results:

• Levitated water significantly alters glucose uptake kinetics in baker's yeast during anaerobic fermentation.
• The direction of the kinetic change depends on whether levitated water is used for culture preparation or fermentation.
• Using levitated water for both increased glucose transport by 67±25%; using it only for fermentation decreased transport by 50±12%.

Conclusions:

• Levitated water specifically affects the glucose transport step in yeast fermentation.
• The observed effects are dependent on the application context of levitated water (culture preparation vs. fermentation).
• The influence of levitated water diminishes with age, showing no effect after three weeks.