Dark fermentative biohydrogen production by Acinetobacter junii-AH4 utilizing various industry wastewaters

Murugan, R.; Dinesh, G.H.; Raja, Ramalingam Karthik; Obeth, Ebenezer Samuel James; Bora, Abhispa; Samsudeen, N.; Pugazhendhi, Arivalagan; Arun, A.

doi:10.1016/j.ijhydene.2020.07.073

Cited by 26 publications

(2 citation statements)

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“…These genera are widely reported as fermentative and hydrogen-producing bacteria . A previous study reported that the Acinetobacter junii-AH4 strain has the ability to generate hydrogen from the dark fermentation of various industrial wastewaters this also explained the high removal efficiency of lipids in our study.…”

Section: Resultssupporting

confidence: 69%

“…84 A previous study reported that the Acinetobacter junii-AH4 strain has the ability to generate hydrogen from the dark fermentation of various industrial wastewaters. 85 Syntrophomonas can oxidize long fatty acids to create H 2 and CO 2 ; 86 this also explained the high removal efficiency of lipids in our study. Likewise, Cheng et al reported an increase in Syntrophomonas with the addition of 200 mg/L magnetite NPs, which led to the improvement of hydrogen and methane cogeneration in cascading dark fermentation and anaerobic digestion.…”

Section: Acs Esandt Engineeringsupporting

confidence: 56%

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Stimulating the Fermentation Process of Industrial Food Waste via Nonionic Surfactant/Graphene Nanosheet Combined Supplementation

et al. 2022

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The synergistic impact of Tween 80 (T80) and reduced graphene oxide (RGO) on the codigestion process of food waste and biscuit wastewater via an anaerobic sequential batch reactor was investigated in this study. The T80/RGO-amended reactor exhibited a hydrogen yield of 313.2 ± 89.3 mL/gCODinitial, which is 1.98-fold higher than that of the control. This increase was a consequence of the increase of hydrogenase enzyme activity from 0.24 ± 0.11 to 0.46 ± 0.15 mg MBreduced/min, as well as the stimulation of hydrolytic enzyme activities (i.e., α-amylase, xylanase, CM-cellulase, polygalacturonase, protease, and lipase). Likewise, microbial community analysis revealed that the relative abundances of genera Acinetobacter, Syntrophomonas, and Clostridium (H2-producing species) were enhanced from 3.9, 2.3, and 2.8% to 10.8, 9.1, and 3.6%, respectively, when T80/RGO was supplemented. On the other hand, molecular docking analysis was performed to explore the interaction of the hydrogenase protein with RGO (binding score: −10.1 kcal/mol) and T80 (binding score: −4.1 kcal/mol) as possible targets with active site residues. Eventually, supplementation of the T80/RGO mixture could stimulate the efficiency of the fermentative hydrogen process and, consequently, be used in practical engineering applications.

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Section: Resultssupporting

confidence: 69%

Section: Acs Esandt Engineeringsupporting

confidence: 56%