Recent Innovations in Emulsion Science and Technology for Food Applications

Long Bai*, Siqi Huan, Orlando J. Rojas, David Julian McClements*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

61 Citations (Scopus)
136 Downloads (Pure)


Emulsion technology has been used for decades in the food industry to create a diverse range of products, including homogenized milk, creams, dips, dressings, sauces, desserts, and toppings. Recently, however, there have been important advances in emulsion science that are leading to new approaches to improving food quality and functionality. This article provides an overview of a number of these advanced emulsion technologies, including Pickering emulsions, high internal phase emulsions (HIPEs), nanoemulsions, and multiple emulsions. Pickering emulsions are stabilized by particle-based emulsifiers, which may be synthetic or natural, rather than conventional molecular emulsifiers. HIPEs are emulsions where the concentration of the disperse phase exceeds the close packing limit (usually >74%), which leads to novel textural properties and high resistance to gravitational separation. Nanoemulsions contain very small droplets (typically d < 200 nm), which leads to useful functional attributes, such as high optical clarity, resistance to gravitational separation and aggregation, rapid digestion, and high bioavailability. Multiple emulsions contain droplets that have smaller immiscible droplets inside them, which can be used for reduced-calorie, encapsulation, and delivery purposes. This new generation of advanced emulsions may lead to food and beverage products with improved quality, health, and sustainability.

Original languageEnglish
Pages (from-to)8944-8963
Number of pages20
JournalJournal of Agricultural and Food Chemistry
Issue number32
Early online date13 May 2021
Publication statusPublished - 18 Aug 2021
MoE publication typeA1 Journal article-refereed


  • HIPEs
  • multiple emulsions
  • nanoemulsions
  • nanotechnology
  • Pickering emulsions


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