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Rencent Advances on Wax-based Oleogels:Fabrication,Crystallization and Food Application

Li-Na SU 2, 2, Zhi-Gang XIAO   

  • Received:2021-12-25 Revised:2022-04-03 Online:2022-04-13 Published:2022-04-13
  • Contact: Zhi-Gang XIAO

Abstract: Oleogelation process provides plastic fats with zero trans-fatty acid and low saturated-fatty acid content, showing promising potential in practical application. This process fabricates oleogels with thermo-reversibility and semisolid behaviors. The oleogel was typically obtained by dosing a gelling agent as the oleogelator to trap liquid vegetable oil under certain conditions (e.g., heating and stirring, or templated dehydration). Natural waxes have been demonstrated to be the most efficient crystalline oleogelators. Such a series of low-cost and readily available oleogelators can construct oleogels with excellent textural properties at relatively low concentrations. Herein, fabrication technologies of natural wax-based oleogels systems using natural was with different compositions have been systematically reviewed. The imapct factors of the crystallinities of different wax-based oleogels have been thoroughly discussed, and the potential applications of these oleogels have been briefly described. Also, based on these discussions, this article subsequently provides insights into the emerging applications, the facing challenges, and the upcoming studies.

Key words: Keywords: oleogels, natural wax, fabrication, crystallization, food application

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