Microalgae Biomass as a Potential Feedstock for the Carboxylate Platform

Area of Science:

• Biotechnology
• Environmental Science
• Biochemistry

Background:

• Volatile fatty acids (VFAs) are crucial industrial chemical building blocks, predominantly produced via petrochemical routes.
• Anaerobic fermentation (AF) presents a sustainable alternative for VFA production using renewable resources.
• Microalgae biomass is a cost-effective and abundant feedstock for VFA generation.

Purpose of the Study:

• To review the potential of microalgae biomass for VFA production via anaerobic fermentation.
• To discuss strategies for enhancing VFA yields from microalgae.
• To analyze microbial communities involved in the AF of microalgae and review VFA applications.

Main Methods:

• Literature review of anaerobic fermentation processes using microalgae biomass.
• Analysis of pretreatment strategies for microalgae feedstock.
• Examination of operational condition manipulation (pH, temperature, loading rate, retention time).
• Review of microbial community analysis techniques for AF processes.
• Compilation of VFA applications in various industrial sectors.

Main Results:

• Microalgae biomass is a viable feedstock for VFA production through anaerobic fermentation.
• Pretreatment and optimized operational conditions significantly influence VFA yields.
• Understanding microbial consortia (bacteria and archaea) is key to improving AF efficiency.
• VFAs derived from microalgae have diverse industrial applications.

Conclusions:

• Microalgae biomass offers a promising renewable resource for sustainable VFA production.
• Further research into microbial dynamics and process optimization can enhance VFA yields.
• The conversion of microalgae to VFAs represents a valuable contribution to the bioeconomy.