Novel nanobubble technology in food science: Application and mechanism
2023
Miral Javed | Anam Matloob | Fatima-ezzahra Ettoumi | Arooj Rehman Sheikh | Ruyuan Zhang | Yanqun Xu
Nanobubble technology is one of the latest green technologies in food industry applications. Nanobubbles (NBs) are gas-filled nanoscopic bubbles with a diameter of < 500 nm. The mass production of bulk nano-bubbles raises growing interest due to their high stability, internal pressure, and an enormous surface-to-volume ratio. Also, they can increase surface area, alter the physicochemical characteristics of the medium, and facilitate mass transfer. Along with their size and stability, air, nitrogen, and carbon dioxide, NBs are widely recognized for their significance in food processing. The potential existence and ability of NBs to remain stable in liquids under ambient conditions have been a contentious issue for a long time due to the conventional thermodynamic theory. In this review, fundamental properties, and several generation methods of NBs have been described along with their mechanism. Moreover, NBs generation methods can produce fine and undeviating gas diffusion characteristics, which can be used to control the uniformity and textural qualities of various creamy and gel-based foods. Thus, we also described the possible applications of NBs along with their mechanism of action in extraction, freezing, foams, and film formation. The ability of NBs to impart health benefits makes them new, improved, and environmentally safe green techniques.
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