Next Article in Journal
A Comprehensive Energy Analysis and Related Carbon Footprint of Dairy Farms, Part 1: Direct Energy Requirements
Next Article in Special Issue
Polarization Potential Has No Effect on Maximum Current Density Produced by Halotolerant Bioanodes
Previous Article in Journal / Special Issue
Energy Analysis of a Rotary Drum Bioreactor for Composting Tomato Plant Residues
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Energies 2018, 11(2), 450; https://doi.org/10.3390/en11020450

Hydrothermal Disintegration and Extraction of Different Microalgae Species

1
Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Biorefineries Department, Torgauer Straße 116, 04347 Leipzig, Germany
2
Faculty of Agricultural and Environmental Sciences, Chair ofWaste Management, University of Rostock, Justus-von-Liebig-Weg 6, 18059 Rostock, Germany
*
Author to whom correspondence should be addressed.
Received: 17 December 2017 / Revised: 28 January 2018 / Accepted: 11 February 2018 / Published: 20 February 2018
(This article belongs to the Collection Bioenergy and Biofuel)
View Full-Text   |   Download PDF [1345 KB, uploaded 23 February 2018]   |  

Abstract

For the disintegration and extraction of microalgae to produce lipids and biofuels, a novel processing technology was investigated. The utilization of a hydrothermal treatment was tested on four different microalgae species (Scenedesmus rubescens, Chlorella vulgaris, Nannochloropsis oculata and Arthorspira platensis (Spirulina)) to determine whether it has an advantage in comparison to other disintegration methods for lipid extraction. It was shown, that hydrothermal treatment is a reasonable opportunity to utilize microalgae without drying and increase the lipid yield of an algae extraction process. For three of the four microalgae species, the extraction yield with a prior hydrothermal treatment elevated the lipid yield up to six times in comparison to direct extraction. Only Scenedesmus rubescens showed a different behaviour. Reason can be found in the different cell wall of the species. The investigation of the differences in cell wall composition of the used species indicate that the existence of algaenan as a cell wall compound plays a major role in stability. View Full-Text
Keywords: microalgae extraction; lipids; microalgal oils; biofuel; cell wall disruption; hydrothermal disintegration; algaenan microalgae extraction; lipids; microalgal oils; biofuel; cell wall disruption; hydrothermal disintegration; algaenan
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Kröger, M.; Klemm, M.; Nelles, M. Hydrothermal Disintegration and Extraction of Different Microalgae Species. Energies 2018, 11, 450.

Show more citation formats Show less citations formats

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

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