Mannosylerythritol lipids: production and applications

Area of Science:

• Biochemistry and Microbiology
• Cosmetic Science

Background:

• Mannosylerythritol lipids (MELs) are biosurfactants produced by yeasts and fungi, known for excellent interfacial and biochemical properties.
• MEL production is primarily found in the genus Pseudozyma, with variations in MEL structures among species.
• A notable exception is Ustilago scitaminea, which produces abundant MEL-B from sugarcane juice.

Purpose of the Study:

• To review the research on Mannosylerythritol lipids (MELs) over recent decades.
• To focus on the identification of MEL-producing fungi, structural characterization of MELs, and their cosmetic applications.
• To explore the use of alternative carbon sources for MEL production.

Main Methods:

• Screening methods for glycolipid production to identify MEL-producing fungi.
• Taxonomical classification based on ribosomal RNA sequences.
• Structural analyses of MEL compounds.

Main Results:

• MELs demonstrate significant potential in cosmetic applications, acting as effective moisturizers and hair repair agents.
• These glycolipids exhibit protective, healing, fibroblast-activating, papilla cell-activating, and antioxidant activities.
• Variability in MEL structures exists among different fungal species, with Ustilago scitaminea showing abundant MEL-B production.

Conclusions:

• Mannosylerythritol lipids (MELs) possess valuable properties for cosmetic use, including moisturizing, hair repair, and antioxidant effects.
• Further research into MEL-producing fungi and their structural characteristics can optimize production and application.
• The exploration of alternative carbon sources and the unique properties of MELs warrant continued investigation for cosmetic and therapeutic advancements.