Results 131 to 140 of about 1,727 (175)
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Acidogenesis of cellulosic hydrolysates for new generation biofuels
Biomass and Bioenergy, 2016Abstract This article presents a comprehensive review on hydrolysis and acidogenesis of lignocellulosic waste biomass and makes clear new perspectives in biofuel research. Specifically, the acidogenesis of lignocellulosics and liquid effluent have been discussed extensively with potential goal the production of a new generation biofuel.
Athanasios Koutinas +2 more
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Tetrabromobisphenol A (TBBPA) anaerobic biodegradation occurs during acidogenesis
Chemosphere, 2021This is the first study to bring evidence on the anaerobic biodegradation of TBBPA occurring during acidogenesis in domestic sewage at environmentally relevant concentrations by complex microbial communities. This was accomplished by continuously operating two anaerobic structured bed reactors (ASTBR) for over 100 days under acidogenic (Acidogenic ...
Williane Vieira, Macêdo +2 more
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Kinetics of whey–lactose acidogenesis
Biotechnology and Bioengineering, 1989AbstractThe mixed‐culture anaerobic conversion of lactose to organic acids in a bench‐scale continuous‐flow stirredtank fermentor is considered. The major acidogenic end‐product distribution with respect to the dilution rate are presented. A Monod chemostat model is employed to describe a microbial growth, and the influence on pH of the estimated model
W S, Kissalita, K V, Lo, K L, Pinder
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Conversion of food waste into hydrogen by thermophilic acidogenesis
Biodegradation, 2005Conversion of food waste into hydrogen by thermophilic acidogenesis was investigated as a function of organic loading rate (OLR), hydraulic retention time (HRT) and pH in a continuous stirred tank reactor. In order to identify hydrogen-producing microorganisms, denaturing gradient gel electrophoresis (DGGE) of the polymerase chain reaction (PCR ...
Shin HS, Youn JH
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Glucose-stimulated acidogenesis by Streptomyces peucetius
Canadian Journal of Microbiology, 1987Cultures of Streptomyces peucetius often were observed to divert spontaneously from the production of anthracycline antibiotics to the excretion of acidic metabolites, whether grown in a defined medium or a nutrient-rich medium. The predominant excreted acidic metabolites were determined by high-performance liquid chromatography to be pyruvate and 2 ...
M L, Dekleva, W R, Strohl
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Enhancement of sludge granulation in hydrolytic acidogenesis by denitrification
Applied Microbiology and Biotechnology, 2015Acidogenesis is an important pretreatment process for various industrial wastewater treatments. Granular sludge is an efficient form of a microbial community in anaerobic methanogenic reactors, such as upflow anaerobic sludge blanket (UASB), but it is hard to develop in the acidogenic process due to the short hydraulic retention times (HRTs) of ...
Yang, Li +5 more
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Effect of HRT on Mesophilic Acidogenesis of Dairy Wastewater
Journal of Environmental Engineering, 2000Effect of hydraulic retention time (HRT) on the acidogenesis of dairy wastewater was studied using an upflow reactor at pH 5.5, 37°C, and six HRTs ranging from 4 to 24 h. Results showed that the degree of acidification increased rapidly with HRT from 28.2% at 4 h to 54.1% at 12 h; further increase of HRT to 16 and 24 h only increased acidification ...
Yu, HQ, Fang, HHP
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Acidogenesis by Oral Streptococci at Different pH Values
Caries Research, 2009Streptococcus mutans is known to be one of the most cariogenic oral microorganisms. Recently, organisms classified as S. mutans have been shown to be genotypically heterogeneous and to form at least six separate species. In this study, differences in acid production between the mutans streptococci and Streptococcus sanguis were investigated at pH ...
J J, de Soet, F A, Toors, J, de Graaff
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Characterisation of high-rate anaerobic acidogenesis [PDF]
, 2020 Detailed in-depth knowledge of acidogenesis is important for the development of robust and optimised anaerobic digestion processes, and also to selectively produce certain acids or other by-products such as hydrogen during the conversions. Although the complete anaerobic digestion process has been studied for a long time, the detailed understanding of ...
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Acidogenesis in the two‐phase anaerobic process
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering, 1985Abstract A two‐phase anaerobic digestion system with a completely mixed acid reactor was studied using a 2 percent synthetic glucose substrate. The steady‐state performance of the acid phase was studied at pH 4.3 and a hydraulic retention time (HRT) of 4.5 hours for 117 days.
Dipak Roy, Lynn M. Jones
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