Microbial community analysis of thermophilic mixed culture sludge for biohydrogen production from palm oil mill effluent

Nitipan, Supachai; Mamimin, Chonticha; Intrasungkha, Nugul; Birkeland, Nils Kåre; O‐Thong, Sompong

doi:10.1016/j.ijhydene.2014.05.139

Cited by 24 publications

(5 citation statements)

References 33 publications

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“…These two gaseous products are derived from the same biological process that switches on hydrogen production when hydrogen-using microorganisms are inhibited, such as homoacetogens and methanogens; inhibition is commonly achieved through heat treatment of the inoculum to remove all microorganisms, except for spore-forming fermenting bacteria (i.e., species belonging to the families Clostridiaceae , Streptococcaceae , Sporolactobacillaceae , Lachnospiraceae, and Thermoanaerobacteriacea ) [ 138 ]. The most common bacteria used in dark fermentation to produce hydrogen are Clostridium [ 139 ] and Thermoanaerobacterium [ 140 , 141 ]. Moreover, several studies have reported successful hydrogen production by mixed cultures in batch or bioreactors [ 142 , 143 ].…”

Section: Bioenergy Production From Industrial and Agricultural Wastementioning

confidence: 99%

“…Moreover, several studies have reported successful hydrogen production by mixed cultures in batch or bioreactors [ 142 , 143 ]. The advantages of using mixed cultures for biohydrogen production are several and are as follows: no need for sterilization, a high adaptive capacity owing to the microbial diversity, the capacity to use a mixture of substrates, and the possibility of obtaining a stable and continuous process [ 141 ].…”

Section: Bioenergy Production From Industrial and Agricultural Wastementioning

confidence: 99%

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Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes

Pagliano

Ventorino

Pánico

et al. 2017

Biotechnol Biofuels

141

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Recently, issues concerning the sustainable and harmless disposal of organic solid waste have generated interest in microbial biotechnologies aimed at converting waste materials into bioenergy and biomaterials, thus contributing to a reduction in economic dependence on fossil fuels. To valorize biomass, waste materials derived from agriculture, food processing factories, and municipal organic waste can be used to produce biopolymers, such as biohydrogen and biogas, through different microbial processes. In fact, different bacterial strains can synthesize biopolymers to convert waste materials into valuable intracellular (e.g., polyhydroxyalkanoates) and extracellular (e.g., exopolysaccharides) bioproducts, which are useful for biochemical production. In particular, large numbers of bacteria, including Alcaligenes eutrophus, Alcaligenes latus, Azotobacter vinelandii, Azotobacter chroococcum, Azotobacter beijerincki, methylotrophs, Pseudomonas spp., Bacillus spp., Rhizobium spp., Nocardia spp., and recombinant Escherichia coli, have been successfully used to produce polyhydroxyalkanoates on an industrial scale from different types of organic by-products. Therefore, the development of high-performance microbial strains and the use of by-products and waste as substrates could reasonably make the production costs of biodegradable polymers comparable to those required by petrochemical-derived plastics and promote their use. Many studies have reported use of the same organic substrates as alternative energy sources to produce biogas and biohydrogen through anaerobic digestion as well as dark and photofermentation processes under anaerobic conditions. Therefore, concurrently obtaining bioenergy and biopolymers at a reasonable cost through an integrated system is becoming feasible using by-products and waste as organic carbon sources. An overview of the suitable substrates and microbial strains used in low-cost polyhydroxyalkanoates for biohydrogen and biogas production is given. The possibility of creating a unique integrated system is discussed because it represents a new approach for simultaneously producing energy and biopolymers for the plastic industry using by-products and waste as organic carbon sources.

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Section: Bioenergy Production From Industrial and Agricultural Wastementioning

confidence: 99%

Section: Bioenergy Production From Industrial and Agricultural Wastementioning

confidence: 99%

Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes

Pagliano

Ventorino

Pánico

et al. 2017

Biotechnol Biofuels

141

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“…The most volatile acid was nbutyric acid. Butyrate was the main metabolites and increased Time (day) 10 20 significantly at HRT 16 e 8 h. The soluble metabolites were ethanol 9.95e16.8%, acetate 16.71e38.21%, propionate 1.54e4.7% and butyrate 47.11e81.75%. The theoretical hydrogen yield from glucose with acetate formation is 450 ml H 2 /g-glucose, which is twice as high as that of butyrate formation, 225 ml H 2 /g glucose or 4 mol of hydrogen are produced from glucose (Eq.…”

Section: Metabolite Productionmentioning

confidence: 95%

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Chu

Hastuti

Dewi

et al. 2016

International Journal of Hydrogen Energy

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“…A mixed culture system is generally more preferable and practical over pure culture system, due to the diverse microbial communities present that can rapidly degrade a wide range of substrates. A strict aseptic condition is also not required, making its handling easier with cheaper cost of operation (Nitipan et al 2014 ; Pachapur et al 2019 ). Nonetheless, the co-existence of biohydrogen producers with non-biohydrogen producers, and biohydrogen-consumers such as methanogens and homoacetogens in the mixed culture, makes it a very biochemically complex environment.…”

Section: Introductionmentioning

confidence: 99%

Microbiomes of biohydrogen production from dark fermentation of industrial wastes: current trends, advanced tools and future outlook

Dzulkarnain

Audu

Dagang

et al. 2022

Bioresour. Bioprocess.

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Biohydrogen production through dark fermentation is very attractive as a solution to help mitigate the effects of climate change, via cleaner bioenergy production. Dark fermentation is a process where organic substrates are converted into bioenergy, driven by a complex community of microorganisms of different functional guilds. Understanding of the microbiomes underpinning the fermentation of organic matter and conversion to hydrogen, and the interactions among various distinct trophic groups during the process, is critical in order to assist in the process optimisations. Research in biohydrogen production via dark fermentation is currently advancing rapidly, and various microbiology and molecular biology tools have been used to investigate the microbiomes. We reviewed here the different systems used and the production capacity, together with the diversity of the microbiomes used in the dark fermentation of industrial wastes, with a special emphasis on palm oil mill effluent (POME). The current challenges associated with biohydrogen production were also included. Then, we summarised and discussed the different molecular biology tools employed to investigate the intricacy of the microbial ecology associated with biohydrogen production. Finally, we included a section on the future outlook of how microbiome-based technologies and knowledge can be used effectively in biohydrogen production systems, in order to maximise the production output.

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Microbial community analysis of thermophilic mixed culture sludge for biohydrogen production from palm oil mill effluent

Cited by 24 publications

References 33 publications

Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes

Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes

Enhancing strategy on renewable hydrogen production in a continuous bioreactor with packed biofilter from sugary wastewater

Microbiomes of biohydrogen production from dark fermentation of industrial wastes: current trends, advanced tools and future outlook

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