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Review
. 2024 Jan;23(1):e13252.
doi: 10.1111/1541-4337.13252.

Rhamnolipids: A biosurfactant for the development of lipid-based nanosystems for food applications

Maria A Azevedo  1   2 , José A Teixeira  2 , Lorenzo Pastrana  1 , Miguel A Cerqueira  1
Affiliations
Review

Rhamnolipids: A biosurfactant for the development of lipid-based nanosystems for food applications

Maria A Azevedo et al. Compr Rev Food Sci Food Saf. 2024 Jan.

Abstract

Biosurfactants (surfactants synthesized by microorganisms) are produced by microorganisms and are suitable for use in different areas. Among biosurfactants, rhamnolipids are the most studied and popular, attracting scientists, and industries' interest. Due to their unique characteristics, the rhamnolipids have been used as synthetic surfactants' alternatives and explored in food applications. Besides the production challenges that need to be tackled to guarantee efficient production and low cost, their properties need to be adjusted to the final application, where the pH instability needs to be considered. Moreover, regulatory approval is needed to start being used in commercial applications. One characteristic of interest is their capacity to form oil-in-water nanosystems. Some of the most explored have been nanoemulsions, solid-lipid nanoparticles and nanostructured lipid carriers. This review presents an overview of the main properties of rhamnolipids, asserts the potential and efficiency of rhamnolipids to replace the synthetic surfactants in the development of nanosystems, and describes the rhamnolipids-based nanosystems used in food applications. It also discusses the main characteristics and methodologies used for their characterization and in the end, some of the main challenges are highlighted.

Keywords: biosurfactants; food applications; lipid-based nanosystems; rhamnolipids.

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References

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