A novel one-step method for oil-rich biomass production and harvesting by co-cultivating microalgae with filamentous fungi in molasses wastewater
Abstract
Aiming at simplifying the harvesting procedure, reducing the production cost, and improving the quality of microalgae-based biodiesel, herein, a novel one-step method for oil-rich biomass production and harvesting was proposed by growing Chlorella sp. with Aspergillus sp. in molasses wastewater. Lipid content and fatty acid profile were measured to assess the suitability of microalgal-fungal biomass for biodiesel production. The results showed that the highest biomass yield (4.215 g/L) was obtained when the inoculation ratio of fungi and microalgae was 100. Activities of fungi positive impacted the decolorization of wastewater and the removal of suspended solids. Thus, co-cultivation system had better performance than mono-system of microalgae in the removal of nutrients in wastewater. Analysis of biomass compositions showed that compared with mono-system of microalgae, co-cultivation system produced biomass with higher lipid content (35.2%) and yield microbial cell oil with lower unsaturation degree, potentially increasing the quality of microbial-cell-lipid based biodiesel.
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A hybrid culture consisting of C. vulgaris and Aspergillus sp. in molasses wastewater can remove 70.7% COD, 67.1% total nitrogen, 94.7% NH4+-N, and 88.4% total phosphorus, versus 26%, 44.4%, 79%, and 33% for mono-microalgae and 59%, 18.2%, 19%, and 40% for mono-fungi.
“A hybrid culture consisting of C. vulgaris and Aspergillus sp. in molasses WW can remove 70.7% COD, 67.1% TN, 94.7% NH4+-N, and 88.4% TP versus 26%, 44.4%, 79%, and 33% for mono-microalgae and 59%, 18.2%, 19%, and 40% for mono-fungi [205].”
From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [205]
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- Authors
- Yang, L., Li, H., & Wang, Q.
- Affiliations
- Model Animal Research Center (CN)
- Zhongkai University of Agriculture and Engineering (CN)
- Corresponding author
- Wang, Qin
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2019-03
- Volume
- 275
- Pages
- 35-43
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2904549570
- Cited by
- 161
- References
- 41
- Citations by year
- 2026: 12 · 2025: 25 · 2024: 28 · 2023: 30 · 2022: 34 · 2021: 17 · 2020: 9 · 2019: 6
- FWCI
- 1.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Guangzhou Science and Technology Program of China (201704030084)
- Guangdong Science and Technology Program of China (2016A040402045)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Physical Sciences › Engineering › Biomedical Engineering › Biodiesel Production and Applications
- Keywords
- Chlorella, Aspergillus, molasses wastewater, microalgae harvesting, biodiesel feedstock, lipid content, fatty acid composition, wastewater decolorization, suspended solids removal, nutrient removal, inoculum ratio
- MeSH terms
- Aspergillus, Chlorella, Lipids, Molasses, Biomass, Microalgae, Wastewater
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