scholarly journals Tandem catalytic aromatization of volatile fatty acids

2020 ◽  
Vol 22 (10) ◽  
pp. 3229-3238
Author(s):  
Egor V. Fufachev ◽  
Bert M. Weckhuysen ◽  
Pieter C. A. Bruijnincx
Keyword(s):  
Fatty Acids ◽  
Circular Economy ◽  
Volatile Fatty Acids ◽  
Waste Streams ◽  
New Synthesis ◽  
Synthesis Routes ◽  
Catalytic Aromatization

The transition towards a circular economy requires closing the carbon loop, e.g. by the development of new synthesis routes to valuable intermediates and products from organic-rich waste streams.

scholarly journals Co-fermentation of municipal waste streams: Effects of pretreatment methods on volatile fatty acids production

2021 ◽  
Vol 145 ◽  
pp. 105950
Author(s):  
Isaac Owusu-Agyeman ◽  
Srija Balachandran ◽  
Elzbieta Plaza ◽  
Zeynep Cetecioglu
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Municipal Waste ◽  
Waste Streams

scholarly journals Production Of Value-Added Products From Waste Derived Volatile Fatty Acids: A Review

2021 ◽  
Author(s):  
Matthew Donald Hinnecke
Keyword(s):  
Fatty Acids ◽  
Literature Review ◽  
Human Population ◽  
Volatile Fatty Acids ◽  
Value Added ◽  
Sustainable Society ◽  
Waste Streams ◽  
A Value ◽  
The World ◽  
Value Added Products

Due to the exponential growth of the human population and declining environmental quality in the world, waste derived volatile fatty acids (VFAs) have been identified as a source for the production of value-added products. Throughout this paper, different technologies for the production of value-added products from VFAs, various high content VFA waste streams and value-added products from each process will be discussed. Additionally, an in-depth literature review will be conducted on 5 value added products from VFAs. Highlights of various experiments will be identified as well as common trends in experiments to date. Some considerations will also be given to particular strategies and methods which may enhance the production of a value-added product in the future. Even through the uncertainty it has been proven that waste derived VFAs are a major candidate in contributing to a more environmentally and sustainable society in the immediate future.

scholarly journals Production Of Value-Added Products From Waste Derived Volatile Fatty Acids: A Review

2021 ◽  
Author(s):  
Matthew Donald Hinnecke
Keyword(s):  
Fatty Acids ◽  
Literature Review ◽  
Human Population ◽  
Volatile Fatty Acids ◽  
Value Added ◽  
Sustainable Society ◽  
Waste Streams ◽  
A Value ◽  
The World ◽  
Value Added Products

Due to the exponential growth of the human population and declining environmental quality in the world, waste derived volatile fatty acids (VFAs) have been identified as a source for the production of value-added products. Throughout this paper, different technologies for the production of value-added products from VFAs, various high content VFA waste streams and value-added products from each process will be discussed. Additionally, an in-depth literature review will be conducted on 5 value added products from VFAs. Highlights of various experiments will be identified as well as common trends in experiments to date. Some considerations will also be given to particular strategies and methods which may enhance the production of a value-added product in the future. Even through the uncertainty it has been proven that waste derived VFAs are a major candidate in contributing to a more environmentally and sustainable society in the immediate future.

Co-Fermentation of Municipal Waste Streams: Effect of Pretreatment Methods on Volatile Fatty Acids Production

2020 ◽  
Author(s):  
Isaac Owusu-Agyeman ◽  
Srija Balachandran ◽  
Elzbieta Plaza ◽  
Zeynep Cetecioglu
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Municipal Waste ◽  
Waste Streams

scholarly journals From Food Waste to Volatile Fatty Acids towards a Circular Economy

2021 ◽  
Author(s):  
Mónica Carvalheira ◽  
Anouk F. Duque
Keyword(s):  
Fatty Acids ◽  
Food Waste ◽  
Circular Economy ◽  
Volatile Fatty Acids ◽  
Animal Feed ◽  
Anaerobic Fermentation ◽  
Industrial Sector ◽  
Added Value ◽  
Microbial Cultures ◽  
Mixed Microbial Cultures

The food industrial sector generates large amounts of waste, which are often used for animal feed, for agriculture or landfilled. However, these wastes have a very reach composition in carbon and other compounds, which make them very attractive for valorization through biotechnological processes. Added value compounds, such as volatile fatty acids (VFAs), can be produced by anaerobic fermentation using pure cultures or mixed microbial cultures and food waste as carbon source. Research on valuable applications for VFAs, such as polyhydroxyalkanoates, bioenergy or biological nutrient removal, towards a circular economy is emerging. This enhances the sustainability and the economic value of food waste. This chapter reviews the various types of food waste used for VFAs production using mixed microbial cultures, the anaerobic processes, involved and the main applications for the produced VFAs. The main parameters affecting VFAs production are also discussed.

scholarly journals Targeted conversion of protein and glucose waste streams to volatile fatty acids by metabolic models

2019 ◽  
Vol 52 (26) ◽  
pp. 175-180
Author(s):  
A. Regueira ◽  
R. Bevilacqua ◽  
J.M. Lema ◽  
M. Carballa ◽  
M. Mauricio-Iglesias
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Waste Streams ◽  
Metabolic Models

scholarly journals Valorization of volatile fatty acids from the dark fermentation waste Streams-A promising pathway for a biorefinery concept

2021 ◽  
Vol 143 ◽  
pp. 110971
Author(s):  
Patrick T. Sekoai ◽  
Anish Ghimire ◽  
Obinna T. Ezeokoli ◽  
Subramanya Rao ◽  
Wing Y. Ngan ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Dark Fermentation ◽  
Waste Streams

scholarly journals Bio-based conversion of volatile fatty acids from waste streams to polyhydroxyalkanoates using mixed microbial cultures

2021 ◽  
Vol 323 ◽  
pp. 124604
Author(s):  
Mariel Perez-Zabaleta ◽  
Merve Atasoy ◽  
Kasra Khatami ◽  
Elsa Eriksson ◽  
Zeynep Cetecioglu
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Waste Streams ◽  
Microbial Cultures ◽  
Mixed Microbial Cultures

Unravelling a microbial synergy to boost caproate production via carboxylates chain elongation with ethanol

2019 ◽  
Vol 26 (2) ◽  
pp. 63-71
Author(s):  
Ling Leng ◽  
Ying Wang ◽  
Peixian Yang ◽  
Takashi Narihiro ◽  
Masaru Konishi Nobu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Volatile Fatty Acids ◽  
Microbial Consortia ◽  
Chain Elongation ◽  
Desulfovibrio Vulgaris ◽  
Rrna Gene ◽  
Selective Enrichment ◽  
Microbial Network ◽  
Cost Efficient ◽  
Rrna Gene Sequencing

Chain elongation of volatile fatty acids for medium chain fatty acids production (e.g. caproate) is an attractive approach to treat wastewater anaerobically and recover resource simultaneously. Undefined microbial consortia can be tailored to achieve chain elongation process with selective enrichment from anaerobic digestion sludge, which has advantages over pure culture approach for cost-efficient application. Whilst the metabolic pathway of the dominant caproate producer, Clostridium kluyveri, has been annotated, the role of other coexisting abundant microbiomes remained unclear. To this end, an ethanol-acetate fermentation inoculated with fresh digestion sludge at optimal conditions was conducted. Also, physiological study, thermodynamics and 16 S rRNA gene sequencing to elucidate the biological process by linking the system performance and dominant microbiomes were integrated. Results revealed a possible synergistic network in which C. kluyveri and three co-dominant species, Desulfovibrio vulgaris, Fusobacterium varium and Acetoanaerobium sticklandii coexisted. D. vulgaris and A. sticklandii (F. varium) were likely to boost the carboxylates chain elongation by stimulating ethanol oxidation and butyrate production through a syntrophic partnership with hydrogen (H2) serving as an electron messenger. This study unveils a synergistic microbial network to boost caproate production in mixed culture carboxylates chain elongation.

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