Abstract
Pickering emulsions (PEs) are valued in the food industry for their biocompatibility and stability. Insoluble dietary fiber (IDF), a sustainable and low-toxicity stabilizer derived from agricultural by-products, has shown great potential for food applications. This paper reviews advancements in IDF extraction and its use in creating IDF-based PEs (IDF-PEs). Key applications in the food sector include food packaging, 3D printing, fat substitution, bioactive delivery, and food stabilization. IDF's natural stabilizing properties and environmentally friendly extraction from agricultural waste are emphasized. While challenges remain regarding the stability and safety of IDF-PEs in complex food systems, their versatility and broad application potential make them a promising area of research. This study provides insights into developing sustainable, multifunctional food ingredients, aiming to expand the use of IDF-PEs and contribute to global sustainability goals.