Preparation of Citral Oleogel and Antimicrobial Properties

Gels. 2023 Nov 25;9(12):930. doi: 10.3390/gels9120930.

Abstract

The objective of this study was to analyze a natural and safe oleogel with antimicrobial properties that can replace animal fats while lengthening the product's shelf life. The oleogel was created using direct dispersion (MG-SO), and its material characterization exhibited the exceptional performance of the hybrid gelant. Additionally, citral was integrated into the oil gel to prepare the citral oleogel (MG-SO). The antimicrobial nature of the material was examined and the findings revealed that it inhibited the growth of various experimental model bacteria, including Escherichia coli, Staphylococcus aureus, Aspergillus niger, Botrytis cinerea, and Rhizopus stolonifer. In addition, the material had a comparable inhibitory impact on airborne microorganisms. Lastly, MG-SON was utilized in plant-based meat patties and demonstrated an ability to significantly reduce the growth rate of microorganisms.

Keywords: antibacterial coatings; citral; oleogel; β-sitosterol; γ-oryzanol.

Grants and funding

This research was supported by the “Thirteenth Five-Year Plan” for National Key Re-search and Development Program (No. 2016YFD0400903), the National Natural Science Foundation of China (No. 31471923), the National Natural Science Foundation of China (No. 32202120), and the Zhuhai College of Science and Technology “Three Levels” Talent Construction Project.