Production of biofuels from pretreated microalgae biomass by anaerobic fermentation with immobilized Clostridium acetobutylicum cells

Ефременко, Елена; Nikol’skaya, A. B.; Lyagin, Ilya; Senko, Olga; Махлис, Т.А.; Stepanov, Nikolay; Maslova, Olga; Mamedova, F.; Варфоломеев, С. Д.

doi:10.1016/j.biortech.2012.03.049

Cited by 161 publications

(56 citation statements)

References 21 publications

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“…Previous studies [55][56][57] have been published considering the production of acetic and butyric acid using C.butyricum, with varying results, considerably different to the results achieved with this study. In most studies the production of butyric acid is favoured over acetic acid, possibly due to the different substrate composition (molasses, glycerol) and culturing conditions.…”

Section: Cost Estimationcontrasting

confidence: 81%

Intensive Production of Carboxylic Acids Using <em>Cl. butyricum</em> in a Membrane Bioreactor (MBR)

Tajarudin¹,

Zacharof²,

Ratanapongleka³

et al. 2018

Preprint

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This work reports of the use of a bench scale chemostat (CSTR) in continuous mode and of a pilot scale membrane bioreactor (MBR) in fed-batch mode to intensively produce acetic and butyric acids using Cl. butyricum grown on synthetic media. These studies were then used to perform a cost estimation study of the MBR system to assess the potential economic impact of this proposed methodology. The MBR system was found highly productive reaching 37.88 g L -1 h-1 of acetic and 14.44 g L -1 h -1 of volumetric cell productivity, favoring acetic acid production to butyric at a ratio 3:1. The cost of preparation and production of carboxylic acids using this system was found as 0.0062 £PS/kg respectively and an up to 99% carbon recovery.

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Section: Cost Estimationcontrasting

confidence: 81%

Intensive Production of Carboxylic Acids Using <em>Cl. butyricum</em> in a Membrane Bioreactor (MBR)

Tajarudin¹,

Zacharof²,

Ratanapongleka³

et al. 2018

Preprint

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“…These indicated that the coculture modes in this study were superior to the fermentation process using the mutant strain in terms of ABE productivity. Efremenko et al (2012) revealed an effective strategy for maximizing butanol yield by using pretreated biomass from various microalgae and cyanobacteria as substrates for ABE fermentation by C. acetobutylicum cells immobilized into poly(vinyl alcohol) cryogel, and the maximum butanol yield (1.17 g/g) was observed with Arthrospira platensis biomass as the substrate. The yield (1.17 g/g) for A. platensis conversion into butanol even exceeded the theoretical maximum values, which may result from the biochemical composition of the photosynthetic microorganism cells used for butanol production as well as the method of calculating the yield.…”

Section: Butanol Production By Continuous Coculture Of C Beijerinckimentioning

confidence: 97%

Enhanced butanol production by coculture of Clostridium beijerinckii and Clostridium tyrobutyricum

Zhang

et al. 2013

Bioresource Technology

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“…However, having extensive and successful experience in applying poly(vinyl alcohol) (PVA) cryogels, which ensure favorable conditions for mass transfer processes for immobilized cells of various microorganisms [33,34], it was decided to try this medium to immobilize BC producers. The idea of such an investigation initially seemed ineffective, but the prospect of looking at the final result was encouraging (namely, at the BC cell synthesis and the polymer yield out of the carrier).…”

Section: Introductionmentioning

confidence: 99%

“Deceived” Concentrated Immobilized Cells as Biocatalyst for Intensive Bacterial Cellulose Production from Various Sources

Stepanov

Ефременко

2018

Catalysts

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Abstract:A new biocatalyst in the form of Komagataeibacter xylinum B-12429 cells immobilized in poly(vinyl alcohol) cryogel for production of bacterial cellulose was demonstrated. Normally, the increased bacteria concentration causes an enlarged bacterial cellulose synthesis while cells push the polysaccharide out to pack themselves into this polymer and go into a stasis. Immobilization of cells into the poly(vinyl alcohol) cryogel allowed "deceiving" them: bacteria producing cellulose pushed it out, which further passed through the pores of cryogel matrix and was accumulated in the medium while not covering the cells; hence, the latter were deprived of a possible transition to inactivity and worked on the synthesis of bacterial cellulose even more actively. The repeated use of immobilized cells retaining 100% of their metabolic activity for at least 10 working cycles (60 days) was performed. The immobilized cells produce bacterial cellulose with crystallinity and porosity similar to polysaccharide of free cells, but having improved stiffness and tensile strength. Various media containing sugars and glycerol, based on hydrolysates of renewable biomass sources (aspen, Jerusalem artichoke, rice straw, microalgae) were successfully applied for bacterial cellulose production by immobilized cells, and the level of polysaccharide accumulation was 1.3-1.8-times greater than suspended cells could produce.

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Production of biofuels from pretreated microalgae biomass by anaerobic fermentation with immobilized Clostridium acetobutylicum cells

Cited by 161 publications

References 21 publications

Intensive Production of Carboxylic Acids Using <em>Cl. butyricum</em> in a Membrane Bioreactor (MBR)

Intensive Production of Carboxylic Acids Using <em>Cl. butyricum</em> in a Membrane Bioreactor (MBR)

Enhanced butanol production by coculture of Clostridium beijerinckii and Clostridium tyrobutyricum

“Deceived” Concentrated Immobilized Cells as Biocatalyst for Intensive Bacterial Cellulose Production from Various Sources

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