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Relevant bibliographies by topics / Volatile fatty acids

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Academic literature on the topic 'Volatile fatty acids'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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Journal articles on the topic "Volatile fatty acids"

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Chughtai, Muhammad Farhan Jahangir, Imran Pasha, Faqir Muhammad Anjum, and Muhammad Adnan Nasir. "Characterization of Sorghum and Millet with Special Reference to Fatty Acid and Volatile Profile." Turkish Journal of Agriculture - Food Science and Technology 3, no. 7 (2015): 515. http://dx.doi.org/10.24925/turjaf.v3i7.515-521.283.

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Sorghum and millet are important food staples in semi-arid tropics of Asia and Africa. Sorghum and millet are cereal grains that have prospective to be used as substitute to wheat flour for celiac patients. These are considered as the good source of many important and essential fatty acids. The volatile profiling of these two important crops is comparable to other cereals as well. The present study was an effort to explore biochemical composition of commercially available sorghum and millet varieties with special reference to their fatty acid and volatile profiling. Chemical composition of sor

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Khrisanapant, Kebede, Leong, and Oey. "A Comprehensive Characterisation of Volatile and Fatty Acid Profiles of Legume Seeds." Foods 8, no. 12 (2019): 651. http://dx.doi.org/10.3390/foods8120651.

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Legumes are rich in unsaturated fatty acids, which make them susceptible to (non) enzymatic oxidations leading to undesirable odour formation. This study aimed to characterise the volatile and fatty acid profiles of eleven types of legumes using headspace solid-phase microextraction gas chromatography–mass spectrometry (HS-SPME-GC-MS) and GC coupled with a flame ionisation detector (GC-FID), respectively. Volatile aldehydes, alcohols, ketones, esters, terpenes and hydrocarbons were the chemical groups identified across all the legumes. The lipids comprised palmitic, stearic, oleic, linoleic an

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Wang, Zhiwei, Weiwu Wang, Ping Li, Yaping Leng, and Jinhua Wu. "Continuous Production of Volatile Fatty Acids (VFAs) from Swine Manure: Determination of Process Conditions, VFAs Composition Distribution and Fermentation Broth Availability Analysis." Water 14, no. 12 (2022): 1935. http://dx.doi.org/10.3390/w14121935.

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For pollution control and waste utilization, a promising future direction is to obtain high-value carbon sources from organic waste. In this experiment, swine manure was efficiently converted into high concentration volatile fatty acids through continuous hydrolysis-acidification bioreactors. This study determined the process conditions, the composition distribution of volatile fatty acids and the availability of fermentation broth. The results showed that the reactor with a hydraulic retention time of 1.5 days had the optimal production performance of volatile fatty acids. The highest hydroly

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van der Wielen, Paul W. J. J., Steef Biesterveld, Len J. A. Lipman, and Frans van Knapen. "Inhibition of a Glucose-Limited Sequencing Fed-Batch Culture ofSalmonella enterica Serovar Enteritidis by Volatile Fatty Acids Representative of the Ceca of Broiler Chickens." Applied and Environmental Microbiology 67, no. 4 (2001): 1979–82. http://dx.doi.org/10.1128/aem.67.4.1979-1982.2001.

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ABSTRACT The effects of concentrations of volatile fatty acids on an anaerobic, glucose-limited, and pH-controlled growing culture ofSalmonella enterica serovar Enteritidis were studied. Suddenly increasing volatile fatty acids to the concentrations representative of the ceca of 15-day-old broiler chickens caused washout of serovar Enteritidis. In contrast, a sudden increase to the volatile fatty acid concentrations representative of the ceca of younger broiler chickens caused a reduction in the biomass but not washout. Gradually increasing volatile fatty acids caused a gradual decrease in the

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Rahim, Ahmad Fitri Abd, Shamsul Rahman Mohamed Kutty, and Ezerie Henry Ezechi. "Volatile Fatty Acids Production through Degradation of Biomass by Anaerobic Digestion (Mesophilic and Thermophilic)." Applied Mechanics and Materials 567 (June 2014): 172–76. http://dx.doi.org/10.4028/www.scientific.net/amm.567.172.

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Volatile fatty acids (VFAs) are fatty acids with a carbon chain of six carbons or fewer and usually referred to as short-chain fatty acids (SCFA). Degradation of biomass through anaerobic digestion will produce volatile fatty acid (VFAs) through anaerobic digestion process. The volatile fatty acids obtained can be recovered and used to produce methyl or ethyl esters which, could be advantageously used as additive for biodiesel [1]. Anaerobic digestion is a biological process that can degrade waste organic material by concerted action of a wide range of microorganisms in the absence of oxygen.

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Kim, J. O., I. Somiya, E. B. Shin, W. Bae, S. K. Kim, and R. H. Kim. "Application of membrane-coupled anaerobic volatile fatty acids fermentor for dissolved organics recovery from coagulated raw sludge." Water Science and Technology 45, no. 12 (2002): 167–74. http://dx.doi.org/10.2166/wst.2002.0423.

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To investigate the treatment performance of membrane-coupled anaerobic volatile fatty acids fermentor system, the effects of operational parameters for volatile fatty acids production were evaluated through experiments and a mathematical model. The volatile fatty acids recovery ratio was largely affected by the change of hydraulic retention time, reaching its maximum value at 12 hrs. Over the range of hydraulic retention time 8 to 96 hrs, the volatile fatty acids recovery ratio decreased with the increase of hydraulic retention time above 12 hrs, while the ratio of mineralization and gasificat

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Hu, Xianqiao, Changyun Fang, Lin Lu, Zhanqiang Hu, Weixing Zhang, and Mingxue Chen. "Dynamic Changes in Volatiles, Soluble Sugars, and Fatty Acids in Glutinous Rice during Cooking." Foods 12, no. 8 (2023): 1700. http://dx.doi.org/10.3390/foods12081700.

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Cooking is an important process before rice is consumed and constitutes the key process for rice flavor formation. In this paper, dynamic changes in aroma- and sweetness-related compounds were tracked during the entire cooking process (including washing with water, presoaking, and hydrothermal cooking). The volatiles, fatty acids, and soluble sugars in raw rice, washed rice, presoaked rice, and cooked rice were compared. After being washed with water, the total volatiles decreased while aldehydes and unsaturated fatty acids increased. Meanwhile, oligosaccharides decreased and monosaccharides i

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Borowski, Sebastian, and Marcin Kucner. "The use of sugar beet pulp stillage for co-digestion with sewage sludge and poultry manure." Waste Management & Research 37, no. 10 (2019): 1025–32. http://dx.doi.org/10.1177/0734242x19838610.

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The anaerobic mesophilic co-digestion of sugar beet pulp stillage with poultry manure and municipal sewage sludge was investigated in this study. The sugar beet pulp stillage (SBPS) mono-digestion failed owing to an accumulation of volatile fatty acids, leading to a pH value lower than 5.5. A 20% addition of poultry manure to stillage allowed for stable digestion performance despite high volatile fatty acid (total volatile fatty acids) concentrations of 5500–8500 g m−3 with propionic acid being the predominant one and constituting 72%–76% total volatile fatty acids. For this mixture, the maxim

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Wajs-Bonikowska, Anna, Karol Olejnik, Radosław Bonikowski, and Piotr Banaszczak. "Analysis of Volatile Components, Fatty Acids, and Phytosterols of Abies Koreana growing in Poland." Natural Product Communications 8, no. 9 (2013): 1934578X1300800. http://dx.doi.org/10.1177/1934578x1300800928.

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Extracts and essential oils from seeds as well as essential oils from cone scales and needles with twigs of the Abies koreana population were studied. An analysis of Korean fir essential oils allowed us to determine 147 volatile compounds. The identified compounds constituted 97–99% of the seed, cone and needle oils. The main volatile in the seed and needle oils was limonene (56.6% and 23.4%, respectively), while the predominant volatile in cone oils was α-pinene (51.2%). Korean fir seeds provided a rich source of both essential oil (3.8–8.5%) and extract, which was isolated with a 24.5% yield

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Najdoska-Bogdanov, Menče, Jane B. Bogdanov, and Marina Stefova. "Simultaneous Determination of Essential Oil Components and Fatty Acids in Fennel using Gas Chromatography with a Polar Capillary Column." Natural Product Communications 10, no. 9 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000933.

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Cultivated and wild growing samples of fennel ( Foeniculum vulgare Mill., Apiaceae) from R. Macedonia were studied for their volatiles and fatty acid composition. The main essential oil components isolated via hydrodistillation were: trans-anethole (>80%), estragole (<6%), limonene (<6%), anisaldehyde (<1%) and 0.5 % fenchone. An alternative method for characterization of both the non-polar volatile and non volatile fractions was developed using n-hexane and dichloromethane (3:1, v/v) in a Soxhlet extraction followed by transesterification. The obtained extracts were then character

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Dissertations / Theses on the topic "Volatile fatty acids"

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Abouzreba, Salem Ali. "Volatile fatty acids in the ambient atmosphere." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388115.

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Ghimire, Sandip. "Volatile Fatty Acid Production in Ruminants." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/75306.

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Volatile fatty acids (VFA) are important products of ruminal fermentation. The VFA are not only the major source of energy to the ruminant animals but also influence methane production in the rumen. Therefore it is important to understand mechanism controlling VFA production and to depict VFA production in a model. This will allow us to devise strategies to enhance energy utilization and reduce methane production in ruminant livestock. An evaluation of a mechanistic model in predicting VFA production was conducted and equations were introduced into the model to improve the predictions. Later a

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Caunt, P. "Degradation of volatile fatty acids by immobilised bacteria." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233711.

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The aims of this project were to study the immobilisation of microorganisms and the use of immobilised cell preparations in biochemical reactors. One particular process, the biodegradation of volatile fatty acids (VFAs), was chosen as a model system. Volatile fatty acids are compounds which are commonly found in odorous wastes and so can present a pollution problem. A bacterium was isolated, which was capable of VFA degradation in a minimal medium. The organism was identified as a strain of Alcaligenes denitrificans. The strain was able to grow on, and degrade, individual straight chain VFAs a

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Ganesan, Balasubramanian. "Catabolism of Amino acids to Volatile Fatty Acids by Lactococcus lactis." DigitalCommons@USU, 2005. https://digitalcommons.usu.edu/etd/5509.

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Lactic acid bacteria are essential as flavor producers of cheese and fermented products. They are capable of catabolizing aromatic, branched chain, and sulfur amino acids to flavor compounds. During cheese ripening the numbers of lactococcal colonies decrease, but lactococci survive without replication in culture. This prompted an investigation into possible mechanisms of catabolism of branched chain amino acids into branched chain fatty acids and the physiological relevance of amino acid catabolism to the bacteria. We hypothesized that lactococci catabolize branched chain amino acids to branc

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Long, Jennifer Erin. "Optimization of volatile fatty acids production in full-scale fermenters." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0018/MQ48064.pdf.

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Passanha, Pearl. "Improved polyhydroxyalkanoate production from selected volatile fatty acids using Cupriavidus necator." Thesis, University of South Wales, 2014. https://pure.southwales.ac.uk/en/studentthesis/improved-polyhydroxyalkanoate-production-from-selected-volatile-fatty-acids-using-cupriavidus-necator(18bc71e1-1514-4c4c-afe7-8d53ff23b0a1).html.

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This study aimed to develop methods to improve PHA production from selected volatile fatty acids (VFAs) and to improve the understanding of the PHA production process by pure culture bacterial fermentation using Cupriavidus necator. Optimisation strategies involved the following investigations using shake flasks and 5 litre based batch fermentations: Shake flask investigations determined that the temperature of 30oC and a nutrient medium, resulted in the highest growth of bacteria. A feeding strategy of the substrate (VFAs - acetic acid and butyric acid) was developed to avoid inhibition by th

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McPeak, David W. (David William). "The behavior of volatile fatty acids in model solutions during freeze-drying /." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65359.

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Teiseh, Eliasu Azinyui. "Anaerobic hydrogen production by photosynthetic purplenonsulfur [sic] bacteria using volatile fatty acids." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1594490411&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Chakraborty, Sagar Ph D. Massachusetts Institute of Technology. "Exploring volatile fatty acids (VFAs) as a novel substrate for microbial oil production." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98701.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Cost effective production of biofuels depends critically on feedstock cost and availability. As such, volatile fatty acids (VFAs) can play an important role in advancing sustainable biofuel production since they can be derived from low cost feedstock including gases and municipal solid waste. To this end, we studied fermentations of the oleaginous microbe Yarrowia lipolytica engineered for lipid overproduction. With

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Abegg, Richard. "Volatile fatty acids in digesta samples of cows with spontaneous cecal dilatation/dislocation /." [S.l.] : [s.n.], 1998. http://www.stub.unibe.ch/html/haupt/datenbanken/diss/bestell.html.

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Books on the topic "Volatile fatty acids"

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Hughes, Raymond Hickman. Absorption of Soluble Volatile Fatty Acids. Creative Media Partners, LLC, 2021.

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Dept.of Environment. Titrimetric Determination of Total and Bicarbonate Alkalinity and Volatile Fatty Acids in Sewage Sludge, 1980-89. Stationery Office Books, 1989.

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Ansari, Mohammed N. a. Effect of Particle Size, Heating and Pelleting of Rations on Volatile Fatty Acids Production in the Rumen of Lambs. Creative Media Partners, LLC, 2021.

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Book chapters on the topic "Volatile fatty acids"

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Asadi, Fateme, Fatemeh Nouri, and Mohammad Taheri. "Microbial Processing on Agri-wastes to Volatile Fatty Acids." In Microbial Bioprocessing of Agri-food Wastes. CRC Press, 2023. http://dx.doi.org/10.1201/9781003128977-2.

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Anoopkumar, Ammini Naduvanthar, Embalil Mathachan Aneesh, Aravind Madhavan, et al. "Volatile Fatty Acids Production and Recovery in Biohydrogen Production." In Biofuel and Biorefinery Technologies. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-49818-3_15.

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Park, Gwon W., Nag-Jong Kim, and Ho Nam Chang. "Microbial Lipid Production from Volatile Fatty Acids by Oleaginous Yeast." In Emerging Areas in Bioengineering. Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527803293.ch12.

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Thennakoon, H. M. K. S. B., S. M. W. T. P. K. T. Ariyarathne, and M. Danthurebandara. "Monitoring Volatile Fatty Acids in an Anaerobic Process with Microbial Fuel Cell." In Lecture Notes in Civil Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9749-3_27.

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Protozoa, Rumen Ciliate, Kevin Hillman, Alan G. Williams, and David Lloyd. "Effects of Various Headspace Gases on the Production of Volatile Fatty Acids." In Microbiology and Biochemistry of Strict Anaerobes Involved in Interspecies Hydrogen Transfer. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0613-9_43.

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Yano, Takuo, Pakorn Nuchnoi, Naomichi Nishio, and Shiro Nagai. "Extraction of Volatile Fatty Acids from Spent Medium with a Supported Liquid Membrane." In Bioproducts and Bioprocesses. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74227-9_26.

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Rafiq Kumar, M., S. M. Tauseef, Tasneem Abbasi, and S. A. Abbasi. "Generation of Volatile Fatty Acids (VFAs) from Dried and Powdered Ipomoea (Ipomoea carnea)." In Advances in Health and Environment Safety. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7122-5_18.

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Rafiq Kumar, M., S. M. Tauseef, Tasneem Abbasi, and S. A. Abbasi. "Conversion of Volatile Fatty Acids (VFAs) Obtained from Ipomoea (Ipomoea carnea) to Energy." In Advances in Health and Environment Safety. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7122-5_28.

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Pinares-Patiño, C. S., H. Kjestrup, S. MacLean, et al. "Methane emission from sheep is related to concentrations of rumen volatile fatty acids." In Energy and protein metabolism and nutrition in sustainable animal production. Wageningen Academic Publishers, 2013. http://dx.doi.org/10.3920/978-90-8686-781-3_183.

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Moreroa, Mabatho, Diane Hildebrandt, and Tonderayi Matambo. "Aerobic Bioremediation of Fischer-Tropsch Effluent – Short Chain Alcohols and Volatile Fatty Acids." In Transactions on Engineering Technologies. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6848-0_17.

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Conference papers on the topic "Volatile fatty acids"

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(Randy) Nixon, Robert A. "Upset Conditions in Anaerobic Distgers in Wastewater Treatment Plants Cause Degradation of Protective Linings." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18235.

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Abstract Both mesophilic and thermophilic anaerobic digesters are currently being utilized to treat sludge derived from more than typical municipal sewerage sources. Wastewater treatment plants are accepting septage and sludge from food waste and industrial contributors routinely today. Receiving these other sources of waste which are extremely high in volatile solids is a source of significant income for the utilities. However, high volatile solids loading into the digesters can cause out-of-balance biochemical conditions in the digesters. High volatile fatty acid to alkalinity ratios and low

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Farquhar, Gale B. "A Review and Update of the Role of Volatile Fatty Acids (Vfa’S) in Seawater Injection Systems." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98005.

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Abstract This paper presents a current review and update of the role the presence of volatile fatty acids play in the production problems related to sea water injection. Such production problems as corrosion, formation souring, deep water subsea injectivity and decline in injectivity are discussed. Conceptual souring models, methods of sampling and analysing for VFA and modern research methods developed towards VFA related sea water injection systems are reviewed. Areas for future research are indicated..

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Kharshan, Margarita, and Alla Furman. "Incorporating Vapor Corrosion Inhibitors (VCIS) in Oil and Gas Pipeline Additive Formulations." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98236.

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Abstract Two new oil and gas pipeline additives were formulated utilizing volatile corrosion inhibitors (VCIs). These products provide a very high level of protection for steel subjected to different types of corrosive petrochemicals due to surface adsorption and vapor phase action environments. The formulation work was based on fatty acid imidazoline chemistry combined with different organic acids. Different surfactants were used to provide maximum wetting properties to the inhibitor and faster transport of inhibitor from the oil or gas phase to the water. Vapor corrosion inhibitors were intr

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Dekhici, Benaissa, and Michael Short. "Data-Driven Modelling of Biogas Production Using Multi-Task Gaussian Processes." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.121877.

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This study introduces the novel application of a Multi-Task Gaussian Process (MTGP) model to predict biogas production and critical anaerobic digestion (AD) performance indicators (soluble COD, volatile fatty acids (VFAs)), addressing feedstock variability and dynamic process behavior. We compare the MTGP against the widely used mechanistic AM2 model to evaluate its accuracy and applicability for probabilistic modeling in AD systems. The MTGP framework leverages multi-output correlations and uncertainty quantification, trained on experimental data, achieving superior predictive performance ove

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Baird, Crawford, Dora Ogles, and Brett R. Baldwin. "Molecular Microbiological Methods to Investigate Microbial Influenced Corrosion in Fully Integrated Kraft Pulp and Paper Mills." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07278.

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Abstract MIC often contributes to corrosion in paper mills despite the seemingly inhospitable conditions for microbial growth. Molecular microbiological methods most notably quantitative polymerase chain reaction (qPCR) were employed to examine MIC at three paper mills with unique operations and construction materials. Despite raw water treatment, qPCR quantification of total bacteria and specific MIC associated microbial groups revealed growth of substantial and diverse microbial populations which had not been identified with cultivation based methods. Moreover, qPCR quantification of several

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Tanji, Yasunori, Kazuya Toyama, and Kazuhiko Miyanaga. "Identification of Crude Oil Component Which Facilitate Biological Souring." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3853.

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Abstract Seawater injection into oil reservoirs for secondary oil recovery is frequently accompanied by souring (increased sulfide concentrations). Production of hydrogen sulfide causes various problems, such as microbiologically influenced corrosion (MIC), deterioration of crude oil. Sulfate-reducing bacteria (SRB) are considered to be major players in souring. Volatile fatty acids (VFAs) in oil field water are assumed to be produced by microbial degradation of crude oil. The objective of this research is to investigate mechanisms of souring from the view of VFA production by the crude oil bi

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Lillebø, Bente-Lise P., Terje Torsvik, Egil Sunde, and Hans Kristian Hornnes. "Effect of Water Content on the Growth of Srb in Crude Oil." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10206.

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Abstract Growth of sulfate reducing bacteria (SRB) in crude oil, with variable amounts of enrichment medium was studied. Gullfaks, Snorre and Grane crude oil were used as carbon and energy source. In Gullfaks crude oil anaerobic cultures with 2 to 95 % v/v brine were inoculated with a mixed culture of SRB and incubated at 30 C for 4 weeks. The cultures were amended with volatile fatty acids (VFA) to enhance growth of SRB. Cultures were analyzed for growth of SRB and H2S production. Growth of SRB was observed in cultures with 6 % water and more, and H2S production was observed in cultures with

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Maxwell, Stephen. "Implications of Re-Injection of Produced Water on Microbially Influenced Corrosion (MIC) in Offshore Water Injection Systems." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05549.

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Abstract Historically, pressure maintenance on many offshore oil production fields has been achieved by the injection of treated seawater. With increasing environmental awareness, however, a zero discharge policy is now becoming the norm and this requires the re-injection of produced water as a means of avoiding overboard dumping. Unfortunately, however, the mixing of seawater and produced water can result in several potential problem scenarios with regard to water quality, scaling tendency, injectivity losses and corrosion control. Microbiological activity is implicit in some of these problem

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Leleika, Scott, Taylor Rambo, and Tekle Fida. "Effects of Renewable Natural Gas and Hydrogen on Microbially Influenced Corrosion and Souring in Underground Gas Storage." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21146.

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Abstract A bench scale laboratory experiment was conducted to assess the microbial corrosion and souring effects renewable natural gas (RNG) and natural gas amended with hydrogen have on underground gas storage systems. Steel coupon-containing vials inoculated with produced fluid from an underground storage well were subject to different headspace conditions to simulate underground gas storage. The vials were filled with geologic natural gas, geologic natural gas amended with hydrogen, RNG, and RNG amended with hydrogen. Each condition was subject to molecular (qPCR, and 16S rRNA analysis), li

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Hoffmann, Heike, Kevin Harris, and Jim Palmer. "The Laboratory Evaluation of Seawater Injection on H2S Production, Incorporating Several Different Treatment Strategies, Utilizing Fixed Film Upflow Bioreactors." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3861.

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Abstract Reservoir Souring is the unplanned production of increased concentrations of hydrogen sulfide (H2S) in well-stream fluids from production wells that are subjected to water-injection. The consequences of souring with respect to safety, corrosion and environmental risk can be significant. This is typically associated with the activity of a specialized group, the Sulfate-reducing bacteria (SRB). However, in recent years, various other micro-organisms are believed to be involved in souring, e.g. Sulfate reducing archaea (SRA). In this study, fixed film up flow bioreactors (FFUBR) were uti

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Reports on the topic "Volatile fatty acids"

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Koziel, Jacek, Yael Laor, Jeffrey Zimmerman, Robert Armon, Steven Hoff, and Uzi Ravid. Simultaneous Treatment of Odorants and Pathogens Emitted from Confined Animal Feeding Operations (CAFOs) by Advanced Oxidation Technologies. United States Department of Agriculture, 2009. http://dx.doi.org/10.32747/2009.7592646.bard.

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A feasibility study was conducted, aiming to explore the potential effectiveness of UV/TiO2/O3 photooxidation technologies for simultaneous treatment of odorant and pathogen emissions from livestock and poultry operations. Several key parameters were tested in laboratory (US) and semi-pilot (Israel) scale conditions including: the effects of light energy dose (treatment time and light intensity), relative humidity and air temperature, UV wavelength, presence of photocatalyst (TiO2) and the presence of ozone. Removal and conversion of odor, target gases (sulfur-containing volatile organic compo

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Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2021.2141.

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In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims

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Asvapathanagul, Pitiporn, Leanne Deocampo, and Nicholas Banuelos. Biological Hydrogen Gas Production from Food Waste as a Sustainable Fuel for Future Transportation. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2141.

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Abstract:

In the global search for the right alternative energy sources for a more sustainable future, hydrogen production has stood out as a strong contender. Hydrogen gas (H2) is well-known as one of the cleanest and most sustainable energy sources, one that mainly yields only water vapor as a byproduct. Additionally, H2 generates triple the amount of energy compared to hydrocarbon fuels. H2 can be synthesized from several technologies, but currently only 1% of H2 production is generated from biomass. Biological H2 production generated from anaerobic digestion is a fraction of the 1%. This study aims

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Lee, E. J., and Dong U. Ahn. Production of Volatiles from Fatty Acids and Oils by Irradiation. Iowa State University, 2004. http://dx.doi.org/10.31274/ans_air-180814-1038.

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Weinberg, Zwi G., Richard E. Muck, Nathan Gollop, Gilad Ashbell, Paul J. Weimer, and Limin Kung, Jr. effect of lactic acid bacteria silage inoculants on the ruminal ecosystem, fiber digestibility and animal performance. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7587222.bard.

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Abstract:

The overall objective of the whole research was to elucidate the mechanisms by which LAB silage inoculants enhance ruminant performance. The results generated will permit the development of better silage inoculants that maximize both silage preservation and animal performance. For this one-year BARD feasibility study, the objectives were to: 1. determine whether lactic acid bacteria (LAB) used in inoculants for silage can survive in rumen fluid (RF) 2.select the inoculants that survived best, and 3. test whether LAB silage inoculants produce bacteriocins-like substances. The most promising str

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