Use of fermentative metabolites for heterotrophic microalgae growth: Yields and kinetics

Turon, Violette; Baroukh, Caroline; Trably, Eric; Latrille, Éric; Fouilland, Éric; Steyer, Jean‐Philippe

doi:10.1016/j.biortech.2014.10.114

Cited by 81 publications

(65 citation statements)

References 31 publications

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“…Axenic microalgae strain and preparation of the microalgae stock culture C. sorokiniana (CCAP 211/8K) was cultivated axenically in 500 mL Erlenmeyer flasks with a working volume of 200 mL. A modified BG11 medium was used as described by Turon et al [10]. Sodium bicarbonate (10 mM), ammonium chloride (5 mM) and dipotassium phosphate (0.31 mM) were used as inorganic carbon (C), nitrogen (N) and phosphorus (P) sources, respectively.…”

Section: Dark Fermentation Test Batchesmentioning

confidence: 99%

“…When grown heterotrophically on a mixture of acetate and butyrate, Chlorella protothecoides reached a carbon yield (g carbon of biomass per g carbon of VFAs) of 34% and a lipid content of 48% of cellular dry weight (CDW) [3]. Turon et al [10] reported that Chlorella sorokiniana could grow heterotrophically on acetate with a growth rate of 2.23 d −1 and a carbon yield of 42% and on butyrate with a much lower growth rate of 0.16 d −1 and a carbon yield of 56%. Recent studies showed that heterotrophic microalgae growth was possible using sterilized DF effluents.…”

Section: Introductionmentioning

confidence: 99%

“…C. sorokiniana was used as a model for heterotrophic microalgae because of its high growth rate on acetate and its ability to produce high amounts of lipids up to 61.5% of its CDW [10,18]. The dynamics of biomass growth and carbon yield of C. sorokiniana were evaluated using sterilized and unsterilized, raw DF effluent and the biomass and diversity of bacterial community originating from the DF effluent were evaluated for the unsterilized DF effluent.…”

Section: Introductionmentioning

confidence: 99%

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Raw dark fermentation effluent to support heterotrophic microalgae growth: microalgae successfully outcompete bacteria for acetate

et al. 2015

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Section: Dark Fermentation Test Batchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Raw dark fermentation effluent to support heterotrophic microalgae growth: microalgae successfully outcompete bacteria for acetate

et al. 2015

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“…Acetic acid is an intermediate of anaerobic digestion. It often accumulates in dark fermentation processes and can be easily converted by microalgae into acetyl-CoA, the main precursor for lipid synthesis [42]. Eukaryotic microorganisms are able to assimilate acetate via a monocarboxylic/proton transporter protein that aids transport of monocarboxylic molecules across the membrane [3] (Figure 1).…”

Section: Biology Of Vfa Utilization;mentioning

confidence: 99%

“…However, various experiments have showed that butyrate seems to possess an extremely low ability of being assimilated by microalgae [42]. Furthermore, the addition of butyrate together with acetate in the culture broth has been found to act as an inhibitor and slow down the acetate uptake [52].…”

Section: Mixture Of Vfa As Carbon Sourcementioning

confidence: 99%

Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds

et al. 2017

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Volatile Fatty Acids (VFA) are small organic compounds that have attracted much attention lately, due to their use as a carbon source for microorganisms involved in the production of bioactive compounds, biodegradable materials and energy. Low cost production of VFA from different types of waste streams can occur via dark fermentation, offering a promising approach for the production of biofuels and biochemicals with simultaneous reduction of waste volume. VFA can be subsequently utilized in fermentation processes and efficiently transformed into bioactive compounds that can be used in the food and nutraceutical industry for the development of functional foods with scientifically sustained claims. Microalgae are oleaginous microorganisms that are able to grow in heterotrophic cultures supported by VFA as a carbon source and accumulate high amounts of valuable products, such as omega-3 fatty acids and exopolysaccharides. This article reviews the different types of waste streams in concert with their potential to produce VFA, the possible factors that affect the VFA production process and the utilization of the resulting VFA in microalgae fermentation processes. The biology of VFA utilization, the potential products and the downstream processes are discussed in detail.

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Bioattenuation of phenol and cyanide involving immobilised spent tea activated carbon with Alcaligenes faecalis JF339228: Critical assessment of the degraded intermediates

Pathak

Roy

Mandal

et al. 2018

Asia-Pacific J Chem Eng

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The current study is designed for the eradication of phenol and cyanide from a simulated binary mixture involving acetic acid modified spent tea activated carbon (STAC‐C), isolated bacterial strain Alcaligenes faecalis JF339228, and immobilized A. faecalis JF339228 onto spent tea biochar by an amalgamated approach of sorption coupled with biodegradation. Characterisation of the biosorbent was ascertained by field emission scanning electron microscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The viability for eco‐benign expulsion of the pernicious pollutants, and the resultant compounds after treatment was examined by fluorescence and UV‐visible spectrophotometry with comprehensive elucidation of the interactions with DNA. Gas chromatography–mass spectrometry (GC‐MS) anatomization was conducted for the evaluation of degraded derivatives post‐treatment. The chemical and structural analysis of the degraded compounds and its impact upon disposal on the basis of degree of toxicity and reactivity were evaluated using TOXTREE software. Batch studies were implemented for the evaluation of process parameters like pH, reaction time, biosorbent or inoculum dosage, initial concentration, and temperature. Mono and binary component isotherm modelling was executed. Immobilised cells and free cells could accomplish better removal efficacy of 94.71% and 92.25% for cyanide, respectively, whereas adsorption using STAC‐C was responsible for maximum removal of phenol up to 86.29%.

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Use of fermentative metabolites for heterotrophic microalgae growth: Yields and kinetics

Cited by 81 publications

References 31 publications

Raw dark fermentation effluent to support heterotrophic microalgae growth: microalgae successfully outcompete bacteria for acetate

Raw dark fermentation effluent to support heterotrophic microalgae growth: microalgae successfully outcompete bacteria for acetate

Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds

Bioattenuation of phenol and cyanide involving immobilised spent tea activated carbon with Alcaligenes faecalis JF339228: Critical assessment of the degraded intermediates

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