Modeling and Optimization of Biohydrogen Production from De-oiled Jatropha Using the Response Surface Method

Kumar, Gopalakrishnan; Sivagurunathan, Periyasamy; Kim, Jun Seok; Bakonyi, Péter; Lin, Ching-Nan

doi:10.1007/s13369-014-1502-z

Cited by 28 publications

(5 citation statements)

References 31 publications

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“…In particular, in this study, the most dominant OTUs of Clostridiaceae and Tissierellaceae were affiliated with Clostridium spp. ( C. thermopalmarium, C. clariflavum , and C. tyrobutyricum ) and Sporanaerobacter acetigenes , respectively, which are commonly detected and isolated in many reactors for CH 4 or H 2 production (Hernandez-Eugenio et al, 2002; Shiratori et al, 2006; Jo et al, 2008; Weiss et al, 2008; Kim et al, 2010; Sasaki et al, 2012; Xia et al, 2014; Kumar et al, 2015; Cibis et al, 2016). The genus Clostridium comprised a large number of species that were often used to produce H 2 (Jiang et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

et al. 2019

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Dairy wastes are widely studied for the hydrogen and methane production, otherwise the changes in microbial communities related to intermediate valuable products was not deeply investigated. Culture independent techniques are useful tools for exploring microbial communities in engineered system having new insights into their structure and function as well as potential industrial application. The deep knowledge of the microbiota involved in the anaerobic process of specific waste and by-products represents an essential step to better understand the entire process and the relation of each microbial population with biochemical intermediates and final products. Therefore, this study investigated the microbial communities involved in the laboratory-scale anaerobic digestion of a mixture of mozzarella cheese whey and buttermilk amended with 5% w/v of industrial animal manure pellets. Culture-independent methods by employing high-throughput sequencing and microbial enumerations highlighted that lactic acid bacteria, such as Lactobacillaceae and Streptococcaceae dominated the beginning of the process until about day 14 when a relevant increase in hydrogen production (more than 10 ml H2 gVS-1 from days 13 to 14) was observed. Furthermore, during incubation a gradual decrease of lactic acid bacteria was detected with a simultaneous increase of Clostridia, such as Clostridiaceae and Tissierellaceae families. Moreover, archaeal populations in the biosystem were strongly related to inoculum since the non-inoculated samples of the dairy waste mixture had a relative abundance of archaea less than 0.1%; whereas, in the inoculated samples of the same mixture several archaeal genera were identified. Among methanogenic archaea, Methanoculleus was the dominant genus during all the process especially when the methane production occurred, and its relative abundance increased up to 99% at the end of the incubation time highlighting that methane was formed from dairy wastes primarily by the hydrogenotrophic pathway in the reactors.

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Section: Discussionmentioning

confidence: 99%

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

et al. 2019

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“…Mixed cultures operation is beneficial to the industrial and economical process due to the robust performances and efficient conversion of wide range of non-sterile organic waste materials with the aid of diverse group of bacteria [3,4]. These diverse group of mixed microflora can be obtained from various natural sources such as sludge, soil, lake sediment, hot spring, and treatment plants [5].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of enriched mixed cultures obtained by repeated batch transfer in continuous hydrogen fermentation

Sivagurunathan

Kumar

Park

et al. 2016

International Journal of Hydrogen Energy

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“…Validation trials were used to confirm the optimal settings. The responses were tracked and compared to what the model anticipated ( Yasin et al, 2014 ; Kumar et al, 2015 ). To visualize the relationship between the response and experimental levels of each element and to determine the best condition, the fitted polynomial equation was represented as response plots using Minitab (version 16) software.…”

Section: Methodsmentioning

confidence: 99%

Influence of medium modifications (optimization) on high nematicidal activity of the fermentation broth of Clostridium beijerinckii

Liu,

Zhang,

et al. 2024

Front. Bioeng. Biotechnol.

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Introduction: The nematode species Meloidogyne incognita has been responsible for significant financial losses within the agricultural sector. Nematophagous bacteria, characterised by their extensive distribution and broad spectrum of hosts, exhibit remarkable efficacy as natural antagonists against nematodes. Sneb518 (Clostridium beijerinckii) fermentation broth displayed substantial biocontrol activity against M. incognita in previous research. Optimizing fermentation conditions is a fundamental technique for dramatically enhancing end product performance. There has been no such study conducted yet on enhancing the nematicidal activities of Sneb518 (Clostridium beijerinckii) fermentation using response surface methodology (RSM).Methods: The influence of strain Sneb518 fermentation media and conditions on nematicidal activity was examined using the three-factor technique and a Plackett-Burman design, and the interaction between various fermentation factors was examined using a Box-Behnken design. The present study employed response surface methodology (RSM) to examine and enhance the nematicidal activity of Sneb518 culture filtrates by identifying and optimising the influential components.Results: Glucose, peanut cake flour, and potassium chloride as carbon, nitrogen, and inorganic salts displayed considerably increased nematicidal potential in the present study. Furthermore, the corrected mortality of J2 ranged from 52.24% to 91.15% when utilizing the Box-Behnken design. These findings clearly support the application of RSM for medium optimization. Moreover, the outcomes of the validation experiment corresponded to the model predictions.Discussion: This research has enhanced the biocontrol ability of C. beijerinckii to control M. incognita and this research has led to the advancement of new biocontrol agents.

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Modeling and Optimization of Biohydrogen Production from De-oiled Jatropha Using the Response Surface Method

Cited by 28 publications

References 31 publications

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production

Feasibility of enriched mixed cultures obtained by repeated batch transfer in continuous hydrogen fermentation

Influence of medium modifications (optimization) on high nematicidal activity of the fermentation broth of Clostridium beijerinckii

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