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Fermentation 2017, 3(4), 54; doi:10.3390/fermentation3040054

Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds

1
IndBioCat group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus,15780 Athens, Greece
2
Food & Health Group, Health Division, Tecnalia Research & Innovation, Parque Tecnológico de Álava, Leonardo Da Vinci, 11, E-01510 Miñano-Álava, Spain
3
Biochemical and Chemical Process Engineering, Division of Sustainable Process Engineering, Department of Civil Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden
*
Author to whom correspondence should be addressed.
Received: 9 September 2017 / Revised: 4 October 2017 / Accepted: 9 October 2017 / Published: 15 October 2017
(This article belongs to the Special Issue Bioconversion Processes)
View Full-Text   |   Download PDF [430 KB, uploaded 15 October 2017]   |  

Abstract

Volatile Fatty Acids (VFA) are small organic compounds that have attracted much attention lately, due to their use as a carbon source for microorganisms involved in the production of bioactive compounds, biodegradable materials and energy. Low cost production of VFA from different types of waste streams can occur via dark fermentation, offering a promising approach for the production of biofuels and biochemicals with simultaneous reduction of waste volume. VFA can be subsequently utilized in fermentation processes and efficiently transformed into bioactive compounds that can be used in the food and nutraceutical industry for the development of functional foods with scientifically sustained claims. Microalgae are oleaginous microorganisms that are able to grow in heterotrophic cultures supported by VFA as a carbon source and accumulate high amounts of valuable products, such as omega-3 fatty acids and exopolysaccharides. This article reviews the different types of waste streams in concert with their potential to produce VFA, the possible factors that affect the VFA production process and the utilization of the resulting VFA in microalgae fermentation processes. The biology of VFA utilization, the potential products and the downstream processes are discussed in detail. View Full-Text
Keywords: volatile fatty acids; waste valorization; microalgae; bioactive compounds; omega-3 fatty acids volatile fatty acids; waste valorization; microalgae; bioactive compounds; omega-3 fatty acids
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Chalima, A.; Oliver, L.; Fernández de Castro, L.; Karnaouri, A.; Dietrich, T.; Topakas, E. Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds. Fermentation 2017, 3, 54.

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