Title:
Multistep Biorefinery Process to Produce Microbial Lipids from Syngas Acetate
Author(s):
Caporusso, A., Albergo, R., Ciliberti, C., Pisano, I., De Bari, I.
Document(s):
Paper
Poster
Abstract:
Environmental challenges are among the most pressing issues of this era. Circular bioeconomy represents a promising approach to addressing these challenges by integrating residual and by-products into industrial processes. This sustainable approach can replace fossil feedstock, contributing to a cleaner and low-carbon environment. Additionally, utilizing these feedstocks to produce high-value products promotes a sustainable circular bioeconomy. This study aimed to develop a multistep biorefinery process to produce lipids from acetic acid, a product of syngas fermentation by Clostridium aceticum (DSM1496). First, the ability of C. aceticum to convert simulated syngas through the Wood-Ljungdahl metabolic pathway was evaluated, with bioconversion optimization tested using different gas mixtures. Subsequently, the convertion of acetic acid into Single Cell Oils, by three different oleaginous yeast strains, respectively Yarrowia lipolytica, Lipomyces tetrasporus and Trichosporon oleaginosus was assessed. Various carbon concentrations with similar C/N ratios were studied to determine the optimal conditions for lipid prodution.
Keywords:
acetic acid, biorefinery, acetogenic bacteria, single cell oils, residues valorisation
Topic:
Biomass Conversion to Bio-based Products and Chemicals
Subtopic:
Biorefinery platforms for bio-based chemicals and polymers
Event:
32nd European Biomass Conference and Exhibition
Session:
6CV.9.22
Pages:
864 - 869
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-6CV.9.22
Price:
FREE
