Yeast cell surface display: An efficient strategy for improvement of bioethanol fermentation performance

Area of Science:

• Biotechnology
• Molecular Biology
• Biochemistry

Background:

• The cell surface is a critical interface for cellular functions.
• Yeast (Saccharomyces cerevisiae) has emerged as a powerful platform for displaying heterologous proteins.
• Surface display systems offer a novel strategy for protein and peptide expression.

Purpose of the Study:

• To review the yeast surface display system and recent advancements.
• To highlight the application of yeast surface display in consolidated bioprocessing for bioethanol production.
• To discuss strategies for reducing phytate phosphate content in dried distillers grains with solubles (DDGS) using yeast surface display.

Main Methods:

• Fusion of proteins of interest with the glycosylphosphatidylinositol (GPI)-anchoring system for yeast cell surface display.
• Development and application of Saccharomyces cerevisiae as a biocatalyst for protein expression.
• Review of existing literature on yeast surface display and its applications.

Main Results:

• Yeast surface display allows for the efficient expression of various proteins and peptides.
• Saccharomyces cerevisiae engineered with surface display systems shows promise for consolidated bioprocessing and bioethanol production.
• Display of phytase on yeast cell surfaces is a viable strategy for decreasing phytate phosphate content in DDGS.

Conclusions:

• Yeast surface display is a versatile technology with significant potential in biotechnology and industrial applications.
• Further improvements in fermentation performance are necessary for optimizing bioethanol production using yeast biocatalysts.
• Surface display of enzymes like phytase offers a sustainable approach to enhance the nutritional value of feed components like DDGS.