Hydrogen production by fermentation using acetic acid and lactic acid

Matsumoto, Mitsufumi; Nishimura, Yasuhiko

doi:10.1263/jbb.103.236

Cited by 150 publications

(74 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to Figure 2, when the lactic acid concentration decreases there is an increase in the concentration of other acids. Considering that the consumption of lactic and acetic acid at a ratio of 1:2, 1 mole of H 2 , 2 moles of CO 2 and 1.5 moles of butyric acid could be produced under conditions of average concentrations of lactic acid, which is an improvement in the production of hydrogen that can occur (MATSUMOTO & NISHIMURA, 2007).…”

Section: Resultsmentioning

confidence: 99%

Hydrogen production from cassava processing wastewater in an anaerobic fixed bed reactor with bamboo as a support material

Andreani

Torres

Schultz³

et al. 2015

Eng. Agríc.

View full text Add to dashboard Cite

Attempting to associate waste treatment to the production of clean and renewable energy, this research sought to evaluate the biological production of hydrogen using wastewater from the cassava starch treatment industry, generated during the processes of extraction and purification of starch. This experiment was carried out in a continuous anaerobic reactor with a working volume of 3L, with bamboo stems as the support medium. The system was operated at a temperature of 36°C, an initial pH of 6.0 and under variations of organic load. The highest rate of hydrogen production, of 1.1 L.d-1.L-1, was obtained with application of an organic loading rate of 35 g.L-1.d-1, in terms of total sugar content and hydraulic retention time of 3h, with a prevalence of butyric and acetic acids as final products of the fermentation process. Low C/N ratios contributed to the excessive growth of the biomass, causing a reduction of up to 35% in hydrogen production, low percentages of H2 and high concentrations of CO2in the biogas.

show abstract

Section: Resultsmentioning

confidence: 99%

Hydrogen production from cassava processing wastewater in an anaerobic fixed bed reactor with bamboo as a support material

Andreani

Torres

Schultz³

et al. 2015

Eng. Agríc.

View full text Add to dashboard Cite

show abstract

“…Selectivity for butyrate production from lactate and acetate was 93.2 %. The reaction stoichiometry was proposed as follows: The reaction stoichiometry for butyrate production from lactate and acetate has been proposed in previous studies [21][22][23][24] (Table 3). Eqs.…”

Section: Effect Of Exogenous Acetate On Lactate Conversionmentioning

confidence: 99%

Production of Butyrate from Lactate by a Newly Isolated Clostridium sp. BPY5

Tao

Zhu

et al. 2016

Appl Biochem Biotechnol

View full text Add to dashboard Cite

Lactate-utilizing bacteria play important roles in the production of Chinese strongflavored liquor (CSFL). However, the identity of these bacteria and their lactate-utilizing properties are largely unknown. Here, a lactate-utilizing, butyrate-producing bacterium BPY5 was isolated from an old fermentation pit for CSFL production. The isolate represented a novel species belonging to Clostridium cluster XIVa of family Lachnospiraceae based on phylogenetic analysis using 16S rRNA gene sequences. Strain BPY5 could ferment lactate into butyrate as the major metabolic product. Butyrate was significantly formed at initial lactate concentration from 66 to 104 mM, but substantially declined when initial lactate exceeded 133 mM. At initial lactate concentration of 66 mM, lactate conversion was independent on initial pH from 5.5 to 7.0, but the conversion was completely inhibited when pH dropped below 4.8. Nevertheless, the inhibition on lactate conversion was largely relieved by the addition of acetate, suggesting that exogenous acetate could enhance lactate conversion at low pH condition. Additionally, lactate in CSFL-brewing wastewater was dramatically removed when inoculated with strain BPY5. These results implicate that the isolate may be applied for the industrial production of butyrate or the recovery of butyrate from lactatecontaining wastewater.

show abstract

“…In the study of Matsumoto and Nishimura (2007) the process of hydrogen production by C. diolis from both the slurry solution and a mixture of acetic and lactic acids in an artificial medium occurred to be pH-dependent and was observed in a range of pH (~5.8 -7.4). Juang et al (2011) also observed utilization of lactate and acetate for biohydrogen and butyrate production during their studies on hydrogen and methane production from organic residues of ethanol fermentation from tapioca starch by mixed bacteria culture.…”

Section: Enhancement Of Hydrogen Production By Lactic Acidmentioning

confidence: 99%