EconPapers    
Economics at your fingertips  
 

Co-culture of Chlorella pyrenoidosa and Cutaneotrichosporon oleaginosum with enhanced biomass, lipid yield, and lipid productivity for micro-biodiesel production

Bo Wu, Wenting Zhou, Zhiwei Gong, Shujiang Ran, Mengqi He, Tianyan Zhong and Xiaoqin Wu

Renewable Energy, 2025, vol. 250, issue C

Abstract: The current microalgae/yeast co-culture consortia suffer from relatively low lipid yield and lipid productivity, which impedes the techno-economics of the technology. Herein, a novel co-culture combination containing the oleaginous microalga Chlorella pyrenoidosa and the oleaginous yeast Cutaneotrichosporon oleaginosum was firstly described for lipid production. Algal mono-culture merely yielded 3.21 g/L of biomass and 0.56 g/L of lipid, whereas these values were 10.35 g/L and 3.98 g/L for the yeast mono-culture. Interestingly, lipid concentration (7.87 g/L) via the co-culture was dramatically higher than the sum of mono-cultures. The co-culture system successfully realized pH self-regulation and nutrients synergism for enhanced lipid yield and productivity. The mixed fermentation medium (MM) was valuable to improve cell growth and lipogenesis of both C. pyrenoidosa and C. oleaginosum. When the co-culture was held in the MM containing 80 g/L of glucose, the total biomass, lipid concentration, lipid content, lipid yield, and lipid productivity reached 33.16 g/L, 18.15 g/L, 54.72 %, 0.23 g/g, and 4.03 g/L/d, respectively. The co-culture system was successfully expanded to cassava starch hydrolysate. The fatty acid composition and the estimated biodiesel properties of lipid samples obtained from co-culture indicated the feasibility for biodiesel production. This study provides a high-efficient microalga-yeast microbial consortium for lipogenesis.

Keywords: Microbial consortium; Co-culture; Oleaginous microalgae; Oleaginous yeast; Biodiesel (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148125010316
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:250:y:2025:i:c:s0960148125010316

DOI: 10.1016/j.renene.2025.123369

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().

 
Page updated 2025-07-01
Handle: RePEc:eee:renene:v:250:y:2025:i:c:s0960148125010316