Next Article in Journal
Promoting Second Generation Biofuels: Does the First Generation Pave the Road?
Next Article in Special Issue
Effect of Lignocellulose Related Compounds on Microalgae Growth and Product Biosynthesis: A Review
Previous Article in Journal
Deep Geothermal Energy Production in Germany
Article Menu

Export Article

Open AccessArticle
Energies 2014, 7(7), 4417-4429; doi:10.3390/en7074417

Microalgae Harvest through Fungal Pelletization—Co-Culture of Chlorella vulgaris and Aspergillus niger

Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave, MN 55108, USA
*
Author to whom correspondence should be addressed.
Received: 6 June 2014 / Revised: 3 July 2014 / Accepted: 4 July 2014 / Published: 10 July 2014
(This article belongs to the Special Issue Algae Based Technologies)
View Full-Text   |   Download PDF [625 KB, uploaded 17 March 2015]   |  

Abstract

Microalgae harvesting is a labor- and energy-intensive process and new approaches to harvesting microalgae need to be developed in order to decrease the costs. In this study; co-cultivatation of filamentous fungus (Aspergillus niger) and microalgae (Chlorella vulgaris) to form cell pellets was evaluated under different conditions, including organic carbon source (glucose; glycerol; and sodium acetate) concentration; initial concentration of fungal spores and microalgal cells and light. Results showed that 2 g/L of glucose with a 1:300 ratio of fungi to microalgae provided the best culturing conditions for the process to reach >90% of cell harvest efficiency. The results also showed that an organic carbon source was required to sustain the growth of fungi and form the cell pellets. The microalgae/fungi co-cultures at mixotrophic conditions obtained much higher total biomass than pure cultures of each individual strains; indicating the symbiotic relationship between two strains. This can benefit the microbial biofuel production in terms of cell harvest and biomass production. View Full-Text
Keywords: co-culture; filamentous fungi; microalgae harvest; pelletization co-culture; filamentous fungi; microalgae harvest; pelletization
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gultom, S.O.; Zamalloa, C.; Hu, B. Microalgae Harvest through Fungal Pelletization—Co-Culture of Chlorella vulgaris and Aspergillus niger. Energies 2014, 7, 4417-4429.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top