Biohydrogen production using native carbon monoxide converting anaerobic microbial consortium predominantly Petrobacter sp.

To better understand the comparative effects between pretreatment and bioaugmentation methods on the promotion of corn straw biogasification efficiency, we analysed the cellulase activity, cellulose degradation rate, surface structure characteristics, and biogas production of corn straw that had been pretreated with aerobic microbial consortium (AMC). In addition, we also studied the effect of bioaugmentation using anaerobic microbial consortium (ANMC) on corn straw biogasification efficiency. The results from our study demonstrated that the cumulative methane generated from AMC and ANMC were 233.09 mL·g-1 VS and 242.56 mL·g-1 VS, which was increased compared to the control by 6.89% and 11.23%, respectively. We also observed that ANMC could also function to dramatically promote methane content during the anaerobic digestion of corn straw. This study demonstrated that AMC and ANMC were both able to promote the biogasification efficiency of corn straw, however, ANMC was found to perform better compared to AMC.

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A novel process for synthesis of spherical nanocellulose by controlled hydrolysis of microcrystalline cellulose using anaerobic microbial consortium

Enzyme and Microbial Technology ◽

10.1016/j.enzmictec.2012.09.002 ◽

2013 ◽

Vol 52 (1) ◽

pp. 20-25 ◽

Cited By ~ 63

Author(s):

P. Satyamurthy ◽

N. Vigneshwaran

Keyword(s):

Microcrystalline Cellulose ◽

Microbial Consortium ◽

Hydrolysis Of ◽

Controlled Hydrolysis ◽

Anaerobic Microbial Consortium

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Dark Fermentative Biohydrogen Production from Palm oil Mill Effluent: Operation Factors and Future Progress of Biohydrogen Energy

Pertanika Journal of Science and Technology ◽

10.47836/pjst.28.s2.19 ◽

2020 ◽

Vol 28 (S2) ◽

Author(s):

Fatin Sakinah Rosman ◽

Mohd Zulkhairi Mohd Yusoff ◽

Mohd Rafein Zakaria ◽

Toshinari Maeda ◽

Mohd Ali Hassan

Keyword(s):

Palm Oil ◽

Fossil Fuels ◽

Microbial Consortium ◽

Global Market ◽

Review Article ◽

Biohydrogen Production ◽

Palm Oil Mill Effluent ◽

Operational Parameters ◽

Microbial Strains ◽

Palm Oil Mill

Malaysia is one of the largest producers and exporters of palm oil, thus, a large amount of palm oil mill effluent (POME) is generated through this process. POME contributes to environmental pollution if it is not properly treated. This complex effluent consists of colloidal matters and mainly organic components with more than 90% water. Thus, it is useful to be used as a substrate for fermentative processes, including biohydrogen production. Biohydrogen from POME is a renewable source that can potentially serve as an alternative to substitute fossil fuels. The abundance of POME and the rising price of fossil fuels in the global market create a demand for this source of energy. However, the complexity of the substituents in POME makes the optimisation of this effluent as a substrate in dark fermentation a challenge. This review article explores the important parameters that need to be considered for optimal biohydrogen production, such as the bioreactor operational parameters and the microbial consortium. Besides, the potential of metabolic engineering as a tool to overcome the limitations of the microbial strains to metabolise POME for increased biohydrogen production was also reviewed. However, further research and development are needed to increase the biohydrogen yield on par with commercial demand.

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