Next Article in Journal
Simultaneous Saccharification and Fermentation of Empty Fruit Bunches of Palm for Bioethanol Production Using a Microbial Consortium of S. cerevisiae and T. harzianum
Next Article in Special Issue
Technoeconomic Evaluation of Microalgae Oil Production: Effect of Cell Disruption Method
Previous Article in Journal
Optimization and Recovery of a Pressure Swing Adsorption Process for the Purification and Production of Bioethanol
Previous Article in Special Issue
Effects of Inoculation with Lactic Acid Bacteria on the Preservation of Nannochloropsis gaditana Biomass in Wet Anaerobic Storage and Its Impact on Biomass Quality
 
 
Article

Development of a Microalgae-Based Continuous Starch-to-Hydrogen Conversion Approach

1
Institute of Plant Biology, Biological Research Center, Eötvös Loránd Research Network (ELKH), Temesvári Krt. 62., H-6726 Szeged, Hungary
2
Doctoral School in Biology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Hungary
3
Department of Water Sciences, University of Public Service, H-6500 Baja, Hungary
*
Author to whom correspondence should be addressed.
Academic Editor: Florian Delrue
Fermentation 2022, 8(7), 294; https://doi.org/10.3390/fermentation8070294
Received: 21 February 2022 / Revised: 17 June 2022 / Accepted: 21 June 2022 / Published: 23 June 2022
(This article belongs to the Special Issue Algal Biomass: From Bioproducts to Biofuels)
Eukaryotic algae represent a highly heterogeneous group in terms of organization, lifestyle, and metabolic capabilities. Unicellular green microalgae are capable of biohydrogen production through direct and indirect photolysis as well as dark fermentation. Most algae hydrogen studies focus on axenic algal cultures, although these are difficult and expensive to maintain for continuous operation. Moreover, the complex interplays and metabolic fluxes between algae and bacteria in natural ecosystems provide a number of clear biological and technological benefits to large-scale functional algae-based systems. Two green algae species from the Chlamydomonas and Chlorella genera were used to engineer stable synthetic communities by incorporating a starch-degrading bacterium from the Bacillus genus into the inter-kingdom consortium. Continuous photoheterotrophic biohydrogen production was achieved by elaborating an appropriate algal–bacterial ratio and fine-tuning the culture conditions for the synthetic consortia. Medium with starch as only carbon source served as a simple model of cheap substrate for algal hydrogen generation. The engineered pairwise algal–bacterial associations showed increased biomass and biohydrogen yield compared to the axenic control conditions. Chlorella sp. MACC-360 produced a significantly higher amount of hydrogen when both the bacterium partner and starch were added to the media compared to the axenic algae. Continuous, elevated algal hydrogen production was achieved in media supplemented with 8 g L−1 starch as sole carbon source when carefully selected initial cell number values were used for the Chlorella sp. MACC-360–B. amlyloliquefaciens co-cultures. View Full-Text
Keywords: algal–bacterial co-culture; biohydrogen; green algae; starch degradation; fed-batch system; Bacillus amyloliquefaciens algal–bacterial co-culture; biohydrogen; green algae; starch degradation; fed-batch system; Bacillus amyloliquefaciens
Show Figures

Figure 1

MDPI and ACS Style

Hupp, B.; Pap, B.; Farkas, A.; Maróti, G. Development of a Microalgae-Based Continuous Starch-to-Hydrogen Conversion Approach. Fermentation 2022, 8, 294. https://doi.org/10.3390/fermentation8070294

AMA Style

Hupp B, Pap B, Farkas A, Maróti G. Development of a Microalgae-Based Continuous Starch-to-Hydrogen Conversion Approach. Fermentation. 2022; 8(7):294. https://doi.org/10.3390/fermentation8070294

Chicago/Turabian Style

Hupp, Bettina, Bernadett Pap, Attila Farkas, and Gergely Maróti. 2022. "Development of a Microalgae-Based Continuous Starch-to-Hydrogen Conversion Approach" Fermentation 8, no. 7: 294. https://doi.org/10.3390/fermentation8070294

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop