Applications and Prospects of Micro-Nano Gas Bubbles in the Food Industry
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Abstract:
Micro-nano gas bubbles are micro-bubble particles with diameters ranging from tens of nanometers to tens of micrometers, formed through dispersing gas in a solution. Compared with ordinary bubbles (≥600 μm), micro-nano gas bubbles, owing to their smaller size, are more readily affected by the Brownian motion of aqueous molecules. They are characterized by physicochemical properties, such as strong stability, long presence in solution, rich negative charges at the gas-liquid interface, and free radical formation during bubble collapse. Therefore, micro-nano gas bubbles are widely used in environmental pollution control, agricultural planting, material science, and medicine. However, the application of micro-nano gas bubbles in the food industry remains at the explorative stage. Here, the formation process, preparation method, bubble characteristics, and current applications of this technology in the food industry are described, and the development direction and application prospects of micro-nano gas bubbles in food are explored to promote further research and development of their applications in the food industry.
