Anaerobic Fermentation for Production of Carboxylic Acids as Bulk Chemicals from Renewable Biomass

2016 ◽  
pp. 323-361 ◽  
Author(s):  
Jufang Wang ◽  
Meng Lin ◽  
Mengmeng Xu ◽  
Shang-Tian Yang
Keyword(s):  
Carboxylic Acids ◽  
Anaerobic Fermentation ◽  
Renewable Biomass ◽  
Bulk Chemicals

scholarly journals Production of medium-chain carboxylic acids by anaerobic fermentation of glycerol using a bioaugmented open culture

2018 ◽  
Vol 118 ◽  
pp. 1-7 ◽  
Author(s):  
Rosemeri I. Dams ◽  
Michael B. Viana ◽  
Alexandre A. Guilherme ◽  
Camila M. Silva ◽  
André B. dos Santos ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Anaerobic Fermentation ◽  
Medium Chain

Carboxylic acids production via anaerobic fermentation: Microbial communities’ responses to stepwise and direct hydraulic retention time decrease

2021 ◽  
pp. 126282
Author(s):  
Mercedes Llamas ◽  
Silvia Greses ◽  
Elia Tomás-Pejó ◽  
Cristina González-Fernández
Keyword(s):  
Microbial Communities ◽  
Carboxylic Acids ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Anaerobic Fermentation ◽  
Time Decrease

Carboxylic acids production using residual glycerol as a substrate in anaerobic fermentation: A kinetic modeling study

2020 ◽  
Vol 143 ◽  
pp. 105874
Author(s):  
Milena Maciel Holanda Coelho ◽  
Naassom Wagner Sales Morais ◽  
Tasso Jorge Tavares Ferreira ◽  
Francisco Schiavon Souza Silva ◽  
Erlon Lopes Pereira ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Kinetic Modeling ◽  
Anaerobic Fermentation ◽  
Modeling Study

scholarly journals Valorisation of Starch Wastewater by Anaerobic Fermentation

2021 ◽  
Vol 11 (21) ◽  
pp. 10482
Author(s):  
Bernhard Drosg ◽  
Matthias Neubauer ◽  
Marceli Marzynski ◽  
Katharina Meixner
Keyword(s):  
Environmental Impact ◽  
Anaerobic Fermentation ◽  
Recovery Processes ◽  
Bulk Chemicals ◽  
Starch Wastewater ◽  
Lactic Acids ◽  
Research Stage ◽  
Biogas Technology ◽  
Starch Production ◽  
The Eu

Starch production is mainly focused on feedstocks such as corn, wheat and potato in the EU, whereas cassava, rice, and other feedstocks are utilised worldwide. In starch production, a high amount of wastewater is generated, which accumulates from different process steps such as washing, steeping, starch refining, saccharification and derivatisation. Valorisation of these wastewaters can help to improve the environmental impact as well as the economics of starch production. Anaerobic fermentation is a promising approach, and this review gives an overview of the different utilisation concepts outlined in the literature and the state of the technology. Among bioenergy recovery processes, biogas technology is widely applied at the industrial scale, whereas biohydrogen production is used at the research stage. Starch wastewater can also be used for the production of bulk chemicals such as acetone, ethanol, butanol or lactic acids by anaerobic microbes.

Anaerobic fermentation: alcohol production

1980 ◽  
Vol 290 (1040) ◽  
pp. 303-312 ◽  
Keyword(s):  
Immobilized Cells ◽  
Anaerobic Fermentation ◽  
Energy Content ◽  
Continuous Fermentation ◽  
Energy Requirements ◽  
Maximum Efficiency ◽  
Alcohol Production ◽  
Bulk Chemicals ◽  
Processing Cost ◽  
The Cost

Anaerobic fermentation of carbohydrates by yeasts and bacteria leads to the production of a range of alcohols, acids and esters. Three alcohols, ethanol, isopropanol and butanol, are currently made industrially by fermentation, though, in most places, production from petroleum is cheaper than the biological conversion. The conversion of glucose to ethanol can be achieved at approaching the theoretical maximum efficiency of 51% (by mass) based on the biochemical route, retaining 93% of the energy content of the carbohydrate. However, the cost of carbohydrate feedstock and the processing cost are generally high compared with the value of the alcohol. The costs and energy balances for alcohol production from a range of feedstocks are discussed. Technological improvements, particularly in reduction of capital and energy requirements, could substantially reduce the processing costs. Developments can be expected in (i) the application of continuous fermentation and immobilized cells; (ii) the development of organisms with increased tolerance to alcohols, wider substrate ranges and higher temperature optima; and (iii) lower energy requirements for recovery of alcohols. Given reasonable technical progress, the wider adoption of bioconversion of carbohydrates to alcohols and similar bulk chemicals will depend on the relative costs of carbohydrate to fossil hydrocarbons. In some regions of high agricultural productivity, and without petroleum, bioconversion processes are already in use and it seems likely that this trend will become more widespread over the next few decades.

Production of biofuel precursor molecules (mono-carboxylic acids, biohydrogen) from apple and pumpkin waste through anaerobic fermentation process

2021 ◽  
Author(s):  
Venkateswer Reddy Motakatla ◽  
Young-Cheol Chang
Keyword(s):  
Fatty Acids ◽  
Carboxylic Acids ◽  
Fermentation Process ◽  
Corrosion Inhibitors ◽  
Anaerobic Fermentation ◽  
Medium Chain ◽  
Medium Chain Fatty Acids ◽  
Precursor Molecules ◽  
Chain Fatty Acids

Medium chain fatty acids (MCFA) such as caproic, heptanoic, and caprylic acids are mono-carboxylic acids, which can be used as precursor molecules to synthesize biodiesel, bioplastics, antimicrobials, and corrosion inhibitors....

Infra-red spectra of solutions of some acid salts of carboxylic acids in dimethylsulphoxide

1962 ◽  
Vol 18 (4) ◽  
pp. 1059-1064 ◽  
Author(s):  
D HADZI ◽  
A NOVAK
Keyword(s):  
Carboxylic Acids ◽  
Infra Red ◽  
Acid Salts

A convenient preparative method for 1,4-diketones from carboxylic acids

1977 ◽  
Vol 27 (1) ◽  
pp. 117-120
Author(s):  
Shoji Watanabe ◽  
Tsutomu Fujita ◽  
Kyoichi Suga ◽  
Haruhiko Abe
Keyword(s):  
Carboxylic Acids ◽  
Preparative Method
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